v1.1.2

What's Changed

• versions: bump versions for 1.1.1 May 2026 release by @rrnewton in #3560
• scx_lavd: Gate dsq_peek_task_load behind no-fast-lb by @daidavid in #3574
• scx_lavd: Add BPF Streams support by @etsal in #3573
• cargo: update crates by @sirlucjan in #3581
• compat.bpf.h: Gate scx_bpf_dsq_peek kfunc behind kernel version 7.1.0 by @bboymimi in #3580
• scx_cosmos: Fix lib/pmu.bpf.c path by @sirlucjan in #3583
• common.bpf.h: probe BPF prolog migrate_disable() from non-sleepable context by @multics69 in #3577
• scx_cosmos: Bump version to 1.1.2 by @arighi in #3584
• scx_cake: fix lib paths by @sirlucjan in #3587
• Update Gentoo Linux installation instructions by @hodgesds in #3590
• scx_lavd: harden placement for migrate-disabled and throttled tasks by @multics69 in #3578
• docs: sync OVERVIEW.md with renamed DSQ helpers by @kurtislin in #3599
• kernel.config: Document CONFIG_SCHED_DEBUG removal in v6.15 by @luoliangovo in #3602
• scx_cosmos: Server tuning by @arighi in #3607
• scx_layered: allow idle_confined spillover when system is fully allocated by @hodgesds in #3594
• scx_layered: tiered NUMA placement for consolidation and balanced cross-node distribution by @hodgesds in #3592
• scx_flow: cpufreq performance hint for latency-lane dispatches by @galpt in #3608
• scx_lavd: fix runnable-task stall from cgroup-bw period_budget poisoning by @multics69 in #3613
• lib/cgroup_bw: fix cgroup under-throttling in deep hierarchies by @multics69 in #3614
• scx_cosmos: Change default time slice to 1ms by @arighi in #3616
• scxtop: speed up trace compilation and stop burning a CPU on shutdown by @hodgesds in #3620
• chore: fix typos and update codespell rules by @oxyzenQ in #3623
• Remove scxtest BPF unit testing infrastructure by @hodgesds in #3625
• scx_cosmos: Introduce sleeper virtual lag by @arighi in #3621
• scx_lavd: Per-CPU DSQ queued-load tracking by @bboymimi in #3610
• scx_cosmos: Skip CPU-less NUMA nodes when creating per-node DSQ by @nvax-r in #3611
• scx_utils: Diagnose malformed scx kfuncs at runtime, not build time by @arighi in #3628
• Revert "scx_cosmos: Introduce sleeper virtual lag" by @arighi in #3630
• rust/scx_utils: Add compatibility logic for BTF enum parsing by @etsal in #3629
• lib/cgroup_bw: fix orphan task from cbw_put_aside() vs LLC-free race by @multics69 in #3615
• [scx_layered] Add opt-in peak-hold shrink resistance by @sravi-in in #3632
• scx_beerland: Sleep virtual-lag and per-CPU load balancing by @arighi in #3631
• scx_cosmos: Avoid verifier failure when skipping empty nodes by @arighi in #3636
• lib/atq: Fix error paths, size accounting, insert races by @etsal in #3638
• scx_lavd: avoid a stray CPU pick in pick_idle_cpu() error paths by @multics69 in #3637
• docs: fix stale scheduler references in OVERVIEW.md by @kurtislin in #3640
• docs: update build and developer docs to match current tree by @kurtislin in #3641
• lib/cgroup_bw: read ->atq with READ_ONCE and treat -EALREADY as benign by @multics69 in #3639
• scx_cosmos: Bump up version by @arighi in #3645
• scx_flow: code cleanup & improvements by @galpt in #3617
• scx_pandemoniumv5.12.0 by @wllclngn in #3622
• scx_cosmos: Fix GPU-aware scheduling by @arighi in #3646
• scx_cosmos: Handle offline CPUs when reading per-CPU stats by @arighi in #3647
• scx_cosmos: Bump version to 1.1.4 by @arighi in #3649
• scx_tickless: Start timer from pinned loader thread by @arighi in #3650
• flow 3.0.4: minor improvements by @galpt in #3651
• scx_pandemoniumv5.13.0: by @wllclngn in #3652
• Revert "PANDEMONIUMv5.13.0:" by @sirlucjan in #3654
• scx_layered: fix compute_target_llcs for asymmetric topologies by @Abhinayckrs in #3597
• scx_mitosis: Fixes for LLC awareness by @kkdwvd in #3648
• scx_characterize by @kkdwvd in #3655
• scx_mitosis: Move vtime update near clamp check by @kkdwvd in #3656
• scx_lavd: dump pending direct-dispatch information in lavd_dump_task by @multics69 in #3653
• scx_lavd: Bound task_clock passed by exec_delta by @daidavid in #3657
• scx_lavd: make --no-use-em reach the userspace CPU-order builder by @kurtislin in #3644
• scx_utils: Move perf event code to perf crate by @arighi in #3663
• scx_mitosis: drop bpf managed mode by @dforsyth in #3658
• scx_pandemoniumv5.14.0: by @wllclngn in #3659
• cargo: Downgrade sysinfo to 0.38 by @arighi in #3664
• scx_flow 3.1.0 by @galpt in #3661
• scx-forge: LLM-driven closed-loop optimizer for sched_ext schedulers by @arighi in #3666
• scx_mitosis: add ktstr cell-isolation smoke test by @likewhatevs in #3669
• common.bpf.h: Make scx_bpf_cpu_rq() weak by @arighi in #3672
• scx_forge_agent: Generalize tracing events and switch to perf by @arighi in #3671
• mitosis: rescue cell 0 when child cpusets cover every CPU by @likewhatevs in #3605
• lib/sdt_alloc: carve pool elements under alloc_lock to prevent double… by @multics69 in #3679

New Contributors

• @kurtislin made their first contribution in #3599
• @luoliangovo made their first contribution in #3602
• @nvax-r made their first contribution in #3611
• @sravi-in made their first contribution in #3632

Full Changelog: v1.1.1...v1.1.2

v1.1.1

What's Changed

• versions: bump versions for v1.1.0 release by @htejun in #3399
• Normalize and update dependency versions by @htejun in #3401
• Sync include files with kernel sched_ext/for-7.1 by @htejun in #3402
• Cake 1.0.4 by @RitzDaCat in #3400
• scx_cake: add to integration-tests by @sirlucjan in #3331
• scx-cake: revert unneeded changes by @sirlucjan in #3406
• scx_cosmos: Deprecate deferred CPU wakeups and increase default time slice by @arighi in #3403
• scx_rustland_core: Fold NUMA-local idle CPU selection into pick_idle_cpu() by @EricccTaiwan in #3381
• scripts: fix bpftrace_stress_wrapper.sh shebang by @MVermue in #3404
• scx_cosmos: Aggressively migrate tasks to the primary domain by @arighi in #3408
• scx.service: Deprecate deferred CPU wakeup for scx_cosmos by @sirlucjan in #3407
• Update Cake to Version 1.1.0 & Fix Incorrect Initial 1.0.4 Commit by @RitzDaCat in #3405
• scxtest: fix undeclared reallocarray() with old glibc by @danieljordan10 in #3390
• docs: Update gentoo instructions for 2026 by @vimproved in #3410
• scx_lavd: Remove duplicate reset_task_flag declaration by @vamoosebbf in #3414
• scx_cosmos: PMU-based scheduling improvements by @arighi in #3415
• scx_mitosis: fix vtime staleness in mitosis_stopping by @dschatzberg in #3417
• scx_cosmos: Track per-CPU utilization instead of global CPU utilization by @arighi in #3419
• Update README by @EricccTaiwan in #3422
• scxtop: Add DSQ latency, LLC locality, runqueue depth, and fairness by @hodgesds in #3423
• scxtop: Fix perf event handling for tracepoints and improve profiling by @hodgesds in #3424
• scx_lavd: fix typo in LAVD scheduler documentation by @1343503048 in #3420
• ci: fix ci by @likewhatevs in #3429
• Disable veristat for scxcash and scxtop by @likewhatevs in #3431
• Fix cpumask tests failing on machines with fewer CPUs by @likewhatevs in #3430
• ci: use vng-action vmlinux.h to fix BTF mismatch by @likewhatevs in #3432
• scx_lavd: Restart scheduler when initially offline CPU comes online. by @multics69 in #3434
• ci: reduce pipeline wall time from ~52m to ~5m on cache hit by @likewhatevs in #3436
• Fix p2dq vtime stall and harden CI by @likewhatevs in #3438
• scx_pandemonium: update to v5.5.0 by @wllclngn in #3427
• Cake 1.1.0 Various Bug Fixes by @RitzDaCat in #3433
• scx_cosmos: Misc improvements by @arighi in #3425
• scx_cosmos: update flags by @sirlucjan in #3439
• scx_cosmos: perf scheduling improvements by @arighi in #3440
• scx-service: add missing quote by @sirlucjan in #3441
• scxtop: use variable-size ringbuf entries to eliminate dropped events by @hodgesds in #3442
• scx_lavd: Clock accuracy and utilization tracking improvements by @multics69 in #3426
• scx_lavd: fix load confinement in a few domains by @bboymimi in #3444
• scx_cosmos: Add --no-early-clear by @shelterx in #3443
• scx_layered: Remove duplicate taskc null check in match_one by @cuiweixie in #3449
• scx_layered: Fix qrt_layer_id init to use MAX_LAYERS instead of MAX_LLCS by @cuiweixie in #3448
• scx: Support new kernel features introduced in v7.1 by @arighi in #3451
• scx_cosmos: Use high-precision time by @arighi in #3450
• scx_lavd: Add missing return after scx_bpf_error() in lavd_cgroup_move() by @EricccTaiwan in #3447
• ci: fix ci for for-next by @likewhatevs in #3452
• sched: add scx_timely scheduler by @galpt in #3453
• scx_utils: Handle ops.sub_cgroup_id in older kernels by @arighi in #3455
• lib/cgroup_bw: Fix task loss under cgroup CPU bandwidth throttling by @multics69 in #3454
• Fix build warnings by @frelon in #3456
• scxtop: replace is_multiple_of() with % operator for stable Rust compat by @kobataiwan in #3457
• mitosis: recompute LLC counts in apply_cell_config by @likewhatevs in #3461
• mitosis: use SCX_DSQ_LOCAL_ON in try_pick_idle_cpu by @likewhatevs in #3460
• mitosis: guard against vtime underflow in stopping by @likewhatevs in #3459
• scx_bpfland: Aggressively avoid SMT contention by @arighi in #3470
• lib/cgroup_bw, scx_lavd: Improve observability for cgroup CPU bandwidth throttling by @multics69 in #3475
• scx_flash: Re-modernize scheduler by @arighi in #3478
• scx_timely: drop from tree by @sirlucjan in #3473
• scx_mitosis: revert dispatch peek to locked iterator approach by @tommy-u in #3489
• scx_bpfland: add TIMELY v1 mode behind --timely flag by @galpt in #3476
• mitosis: fix overflow panic in demand metrics during cell reconfig by @likewhatevs in #3488
• lib/cgroup_bw, lib/topology: Fix permanent task stall in cgroups with inherited quota, and topology fanout fixes by @multics69 in #3492
• scx_flash: Re-introduce SMT contention avoidance by @arighi in #3494
• scxtop: refactor scheduler view with rsched-style aggregations by @hodgesds in #3497
• scx_flash: Fix tickless mode by @arighi in #3496
• scx_mitosis: Clean up Cell cpumasks handling by @kkdwvd in #3491
• ci: split veristat into stable and dev jobs by @likewhatevs in #3498
• scx_layered: Force minimum of 1 CPU as upper bound when using cpus_range_frac by @etsal in #3500
• rust/libarena: Exclude non-CPU NUMA nodes from arena topology by @etsal in #3501
• scxtop: pass wakeup timestamp in BPF event and add v2 dsq insert probes by @hodgesds in #3503
• common.bpf.h, scheds: Fix migration-disabled task dispatch bug on non-PREEMPT_RCU kernels by @multics69 in #3502
• lib/cgroup_bw: Fix task stall due to async cgroup destruction by @multics69 in #3505
• arena/p2dq: address warnings by @likewhatevs in #3507
• mitosis: skip reject-multicpu-pinning during cpuset transitions by @likewhatevs in #3462
• scx_lavd: Latency-Aware Task Placement by @daidavid in #3481
• Mitosis: dynamic affinity CPU selection for pinned tasks (based on PR #3206) by @tommy-u in #3393
• lib/cgroup_bw: Fix off-by-one in cbw_dump_cgroup indent level by @multics69 in #3517
• scx_flash: Avoid penalizing per-CPU kthreads by @arighi in #3518
• scheds: scx_chaos: match p2dq thermal autoload gating by @cloehle in #3522
• scheds/experimental: add scx_flow scheduler by @galpt in #3493
• scheds: move wd40 and rlfifo to experimental directory by @sirlucjan in #3523
• scheds: update README.md by @sirlucjan in #3524
• Cargo: drop scx_wd40 by @sirlucjan in #3527
• lib/cgroup_bw: Async throttle with adaptive accounting timer by @multics69 in #3521
• Cargo: update libbpf to latest versions by @sirlucjan in #3526
• scheds: scx_p2dq: fix LLC util drift and refresh PELT on runnable by @cloehle in #3520
• slice shrinking: reduce runnable time for CPU-pinned tasks by @tommy-u in #3529
• scx_pandemonium: update to v5.6.0 by @wllclngn in #3516
• scheds/experimental: add scx_flow v2.2.0 scheduler by @galpt in #3525
• ci: fix apt install tim...

v1.1.0

What's Changed

• versions: bump versions for 1.0.20 release by @htejun in #3299
• Cargo: update libbpf to latest versions by @sirlucjan in #3301
• ci: enable Pages auto-configuration in configure-pages action by @rrnewton in #3305
• scx_lavd: Support partial mode with --partial by @mfleming in #3306
• scx: Use software ctzll for BPF when clang < 19 by @arighi in #3304
• scheds: Add scx_cake, an experimental gaming-oriented scheduler by @RitzDaCat in #3202
• separate C schedulers into their own repository by @etsal in #3195
• scx_layered: Remove unused fields and dead code by @htejun in #3311
• scx_lavd: Standardize naming conventions for time, utilization, and load metrics by @multics69 in #3294
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3313
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3314
• scheds: remove leftover scx_sdt by @etsal in #3315
• scx_mitosis: Add Optional LLC Awareness and Work Stealing by @tommy-u in #3146
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3317
• Improve reading and fix typo by @EricccTaiwan in #3318
• scx_layered: topology-aware cpumask grid display for stats by @htejun in #3321
• scx_layered: compact monitor stats and improve visual structure by @htejun in #3325
• Cargo: limit the number of compiled workspace elements by @sirlucjan in #3324
• lib/cgroup_bw: Hierarchical budget distribution and observability improvements by @multics69 in #3319
• scx_cosmos: Add CPU capacity awareness by @arighi in #3320
• README: Remove C scheduler references by @EricccTaiwan in #3328
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3333
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3334
• scx_mitosis: remove split_vtime_updates flag by @tommy-u in #3323
• [layered]: fix UsedGpuPid + IsGroupLeader matchers by @xerothermic in #3336
• Cargo.toml: update cargo profiles by @sirlucjan in #3329
• scx_layered: NUMA-aware prep - per-node tracking infrastructure by @htejun in #3337
• README: Add section for other sched_ext schedulers by @htejun in #3339
• Made netdev-irq-balance works by @xerothermic in #3338
• scx_cosmos: use PMU library for perf event handling by @etsal in #3220
• scx_cake: Update scx_cargo and scx_utils to current versions by @sirlucjan in #3344
• scx_mitosis: add RAII guard framework and replace manual cleanup by @dschatzberg in #3341
• scx_cosmos: Drop ops.cpu_release() by @arighi in #3343
• scx: Include task local data library by @ameryhung in #3346
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3347
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3348
• scx_layered: replace manual resource cleanup with RAII guards by @dschatzberg in #3350
• scx_layered: Fix DSQ_ID_LAYER_MASK definition by @htejun in #3353
• scx_layered: Node-aware growth algorithms and per-node StickyDynamic LLC trading by @htejun in #3354
• flash: Drop ops.cpu_release() by @EricccTaiwan in #3345
• scx_layered: Fix dead_code warning by @EricccTaiwan in #3355
• scx_layered: Fix lo-fallback bypass and confined layer CPU accounting by @htejun in #3356
• scx_layered: Unified per-node CPU allocation by @htejun in #3357
• scx_rustland_core: Use bpf_cpumask_weight to count online CPUs by @EricccTaiwan in #3360
• scx_rustland_core: Drop redundant RCU lock by @EricccTaiwan in #3362
• Kconfig: Sync with upstream by @EricccTaiwan in #3363
• Bump libbpf-rs to v0.26.1 and use reference_obj skeleton generation by @likewhatevs in #3342
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3368
• scx_layered: Per-node LLC drain and fallback dispatch by @htejun in #3366
• lib/sdt_alloc: Fix erroneous condition that prevents zero'ing by @etsal in #3364
• scxtop: Ignore missing threads during initialization by @EricccTaiwan in #3369
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3370
• scx_cosmos: Add tick hook for preemption enforcement by @devnexen in #3365
• scx_lavd: Restrict slice boosting based on CPU utilization. by @multics69 in #3367
• scx_raw_pmu / scxtop: update procfs from 0.15.1 to 0.18.0 by @blezsan in #3375
• scx_rustland_core: Use bpf_core_read_str to read task comm by @EricccTaiwan in #3376
• scx_rustland_core: Fix borrow error and clippy warnings by @EricccTaiwan in #3374
• scx_cosmos: Introduce "sticky" and dynamic PMU thresholds by @arighi in #3349
• scx_layered: error on NumaNode matcher + NodeSpread* growth algorithm by @xerothermic in #3371
• lib: cgroup ATQ lifecycle cleanup + scx_alloc() migration for rbtree/ATQ by @multics69 in #3361
• scx_lavd: Revise load-balancing conditions by @bboymimi in #3300
• scx_layered: Add cross-NUMA migration gating by @htejun in #3378
• Change BUFSIZE to use queued_task_ctx type by @michaelr0 in #3380
• scx_mitosis: Initial support for non-cpuset cell assignment by @dschatzberg in #3270
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3385
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3386
• scx_lavd: guard division-by-zero in sys_stat collect/calc paths by @rrnewton in #3379
• scx_p2dq: Fix BPF verifier errors for cpus_ptr access on peeked tasks by @hodgesds in #3383
• Cargo.lock: Update dependencies to latest versions by @EricccTaiwan in #3389
• sched: add scx_pandemonium scheduler by @wllclngn in #3382
• scx_mitosis: fix nondeterministic contested CPU distribution by @dschatzberg in #3391
• cgroup_bw, scx_lavd: implement ops.dump_task() by @multics69 in #3387
• common.bpf.h, scx_lavd: use task clock for runtime accounting by @multics69 in #3388
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3392
• scx_cosmos: GPU auto-affinitization by @arighi in #3377
• README.md: drop PANDEMONIUM (has been merged into tree) by @sirlucjan in #3394
• scx_pandemonium: add to integration-tests by @sirlucjan in #3395
• scx_layered: Bump MAX_NUMA_NODES to 32 and consolidate node stats by @htejun in #3397
• xtask: Add --min-version flag to bump-versions by @htejun in #3398

New Contributors

• @mfleming made their first contribution in #3306
• @RitzDaCat made their first contribution in #3202
• @ameryhung made their first contribution in #3346
• @blezsan made their first contribution in #3375
• @michaelr0 made their first contribution in #3380
• @wllclngn made their first contribution in #3382

Full Changelog: v1.0.20...v1.1.0

v1.0.20

What's Changed

• scx_p2dq: Add fork-time load balancing across LLCs by @hodgesds in #3112
• versions: bump versions for 1.0.19 release by @htejun in #3124
• layered: fix GPU matching when member_expire_ms=0 by @xerothermic in #3126
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3128
• scx_layered: Bump version for a hotfix release by @htejun in #3131
• scx_layered: prevent timestamp 0 for GPU kprobe map by @etsal in #3120
• scx_cargo: scx_utils::BpfBuilder -> scx_cargo::BpfBuilder by @Gliczy in #3127
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3133
• scx_raw_pmu: remove flaky tests by @etsal in #3135
• scx_lavd: Account for time stolen from tasks from steal/irq_time by @daidavid in #3098
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3136
• lib: move ravg and add arena copy methods by @etsal in #3134
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3137
• build: Reduce the binary size for the release-tiny profile by @multics69 in #3138
• scx_p2dq: Add energy-aware scheduling with thermal and frequency awareness by @hodgesds in #3115
• scx_p2dq: Fix atq verification by @hodgesds in #3140
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3141
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3144
• nix: bump virtme-ng 1.36->1.40 by @JakeHillion in #3147
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3148
• nix: virtme-ng: add missing mcp dep by @JakeHillion in #3149
• Cargo.lock: update dependencies to latest versions by @sirlucjan in #3150
• Add perfmon based scheduling to scx_cosmos by @balbirs-nv in #3151
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3153
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3154
• scx_p2dq: Fix ARM build by @EricccTaiwan in #3155
• Use scx_bpf_cpu_curr() instead of deprecated scx_bpf_cpu_rq() by @cloehle in #2734
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3152
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3157
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3156
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3158
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3159
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3161
• scx_bpfland: Re-introduce --slice-min-us by @arighi in #3162
• Cargo: update dependencies to latest versions by @sirlucjan in #3163
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3164
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3165
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3167
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3166
• Downgrade crate dependencies to more stable / portable versions by @arighi in #3169
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3171
• mitosis: make independent of cpu cg controller presence by @likewhatevs in #3145
• scx_layered: fix kprobe race by @etsal in #3132
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3174
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3175
• scx_lavd: complete refactor into separate compiliation units by @etsal in #3173
• chore(spelling): fix typos across schedulers, libs, and tools by @oxyzenQ in #3172
• scx_cosmos: Bump up version to 1.0.6 by @arighi in #3176
• scx_cargo: Bump up version to 1.0.26 for scx_cosmos by @arighi in #3179
• lib: assorted bugfixes by @etsal in #3160
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3183
• scx_lavd: Fix stale migration roles in load balancer, remove redundant condition, and optimize the stealing loop by @bboymimi in #3109
• utils: Graceful error handling for EnergyModel. by @multics69 in #3184
• chore: Add .codespellrc for future-proof typo checking by @oxyzenQ in #3181
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3185
• scx_beerland: Reduce scheduler overhead by @arighi in #3186
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3187
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3191
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3192
• scx_lavd: reduce stack spilling in scx_dispatch by @etsal in #3193
• lib/sdt_task: add error messages on alloc path by @etsal in #3194
• arena: initial ASAN support and new allocators by @etsal in #3188
• README: update upstream status and add LPC 2024/2025 links by @etsal in #3197
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3199
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3201
• asan: buddy allocator bugfixes by @etsal in #3200
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3204
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3205
• asan: remove hardcoded arena size and shadow offset by @etsal in #3203
• scx_lavd: remove unused cpumask by @etsal in #3208
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3209
• scx_lavd: Change nr_queued_on_cpu() to queued_on_cpu(). by @multics69 in #3214
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3215
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3216
• asan: remove scx prefix and header dependencies by @etsal in #3207
• asan: add option for turning off address sanitization in allocators by @etsal in #3221
• scx_lavd: remove duplicate mask declarations by @etsal in #3219
• scx_lavd: Misc code clean-up and hardening. by @multics69 in #3217
• [scx_stat] Support timeout in stats client by @mkutsevol in #3222
• scx_lavd: Improve latency criticality propagation among tasks. by @multics69 in #3218
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3224
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3223
• services: re-introduce basic systemd support (make systemd service great again) by @sirlucjan in #3226
• scx_lavd: Improve scaled load calculation and core compaction. by @multics69 in #3225
• scx_p2dq: Misc cleanup by @hodgesds in #3227
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3228
• scxtop: Add support for parsing wprof perfetto traces by @hodgesds in #3230
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3231
• scx_p2dq: Clean stats output by @hodgesds in #3232
• scx_p2dq: add Intel uncore frequency, turbo, and EPP controls by @hodgesds in #3234
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3236
• services: update systemd service unit ...

v1.0.19

What's Changed

• versions: bump versions for 1.0.18 release by @JakeHillion in #3031
• scx_lavd: Optimize CPU mask iteration with __builtin_ctzll by @bboymimi in #3016
• scx_utils, scx_lavd: Use a portable ctzll(). by @multics69 in #3032
• scx_bpfland: Reduce migration attempts when sticky tasks are enabled by @arighi in #3034
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3036
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3037
• scx_lavd: Lower the verifier pressure. by @multics69 in #3033
• Add cpu.max Support for the SCX Scheduler by @multics69 in #3026
• scx_p2dq: Update to the new ATQ API by @etsal in #3038
• veristat: hack to increase buffer size by @JakeHillion in #3045
• ci: fix ubuntu runner deps action by @JakeHillion in #3050
• lavd/p2dq: disable 6.12 CI testing by @JakeHillion in #3048
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3039
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3041
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3040
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3042
• scx_lavd: Revise the use of per-CPU DSQ. by @multics69 in #3044
• scx_lavd: Addresses race conditions in LAVD's idle_total accounting by @bboymimi in #3052
• scx_lavd: Revise the time slice calculation when pinned_slice_ns is on. by @multics69 in #3053
• p2dq/mitosis/lavd/layered -- cli and logging productionization by @likewhatevs in #3017
• scx_layered: skip layer rotation when LLC/node preferences specified by @hodgesds in #3049
• scx_p2dq: Update interactive sticky and idle selection path by @hodgesds in #3054
• meson: replace with an error by @JakeHillion in #3056
• scx: drop openrc service by @sirlucjan in #3057
• scx_lavd: Tracking the number of pinned tasks on a CPU precisely. by @multics69 in #3055
• scx_lavd: Cancel an ATQ operation only when CPU.max is enabled. by @multics69 in #3051
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3060
• scx_p2dq: Fix migration disabled handling by @hodgesds in #3058
• p2dq: Cleanup skeleton attachment by @hodgesds in #3063
• scx_lavd: perform task stealing in circular distance order. by @multics69 in #3061
• ci: drop vm for cargo test by @JakeHillion in #3066
• p2dq: Remove cpu_release by @hodgesds in #3064
• scxtop: Add perfetto trace analysis framework with systing support by @hodgesds in #3030
• scx_cargo: migrate BpfBuilder from scx_utils by @JakeHillion in #3065
• scx_lavd: Disable ops.cgroup_set_bandwidth() when no kernel support. by @multics69 in #3068
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3069
• scx_p2dq: Add DHQ support by @hodgesds in #3035
• scxtop: Add limit parameter to detect_outliers MCP tool by @hodgesds in #3071
• scx_lavd: Fix pick_most_loaded_dsq() when --per-cpu-dsq is given. by @multics69 in #3070
• lib: cgroup_bw: Fix the "rcu pointer" error in an old kernel (6.13). by @multics69 in #3073
• doc: Add pahole to Ubuntu instruction. by @multics69 in #3072
• scx_lavd: Move task_ctx to lavd.bpf.h from intf.h by @multics69 in #3074
• scx_p2dq: Fix high wakeup latency on idle systems with DHQ enabled by @hodgesds in #3076
• scxtop: Add topology-aware multi-ringbuffer support and fix perfetto … by @hodgesds in #3075
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3077
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3078
• scx_bpfland: Use nr_cpu_ids as the actual CPU limit by @arighi in #3080
• kernel.config: Add CONFIG_KALLSYMS_ALL=y by @torvic9 in #3081
• scx_lavd: Don't try to migrate a task from non-migratable DSQs. by @multics69 in #3079
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3083
• scx_lavd: Turn on --pinned-slice-us option by default. by @multics69 in #3062
• scx_cosmos: Avoid unnecessary CPU wakeups by @arighi in #3086
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3089
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3091
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3090
• document release process by @JakeHillion in #3095
• scx_lavd: Revise the performance criticality metric. by @multics69 in #3093
• scx_lavd: Revise the load-balancing metrics. by @multics69 in #3094
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3096
• scx_lavd: Minor tuning of deadline calculation for heavy loads. by @multics69 in #3097
• scx_lavd: Fix cpu_dsq_id typo in vtime comparison by @bboymimi in #3099
• lib: cgroup_bw: Fix a BPF verifier error on 6.18-rc6/clang-19/ARM64. by @multics69 in #3092
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3102
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3105
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3106
• scx_lavd: Optimize layout of context structures for better use of cache. by @multics69 in #3107
• Fix some typos by @oxyzenQ in #3104
• scx_p2dq: Fix verifier on newer kernels with bpf_rcu_read_lock by @hodgesds in #3110
• scx_p2dq: Add PELT tracking by @hodgesds in #3111
• layered: Add a new NUMANode Matcher by @xerothermic in #3100
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #3117
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3116
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #3118
• scx_p2dq: Update default slice intervals by @hodgesds in #3122
• scx_p2dq: Add conservative wakeup preemption for latency-critical tasks by @hodgesds in #3123
• scxtop: Add query limits to get_process_timeline and get_cpu_timeline MCP server methods by @hodgesds in #3121

New Contributors

• @torvic9 made their first contribution in #3081
• @oxyzenQ made their first contribution in #3104

Full Changelog: v1.0.18...v1.0.19

v1.0.18

What's Changed

• versions: bump versions for 1.0.17 release by @JakeHillion in #2866
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2869
• rustland-core: improve formatting by @sirlucjan in #2867
• README: Add Kernel Recipes 2025 by @EricccTaiwan in #2871
• scx_layered: remove task_layer_id by @etsal in #2872
• scx_util: Fix up --virt-llc args by @daidavid in #2873
• ci: clang-format scx_chaos by @JakeHillion in #2868
• scx_rustland_core: Fix clippy warnings by @EricccTaiwan in #2874
• rustland-core: fix formatting by @sirlucjan in #2877
• scx_bpfland: Rework idle selection and scheduling policy by @arighi in #2876
• chaos: reimplement better random support by @JakeHillion in #2878
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2881
• scx_rustland_core: Rely on built-in idle CPU selection policy by @arighi in #2875
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2882
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2884
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2885
• scx_bpfland: Disable sticky tasks by default by @arighi in #2887
• scx_loader: update bpfland server mode by @sirlucjan in #2888
• scx_mitosis: enable clang-format in the CI by @JakeHillion in #2892
• Dynamically gate layer admission for HintEquals by @kkdwvd in #2891
• meson: bump version to 1.0.17 by @sirlucjan in #2893
• scx_layered: add memory bandwidth-based layer sizing by @etsal in #2880
• scx_layered: fix warning by @sirlucjan in #2895
• scx_rustland_core/scx_rustland: Rework and improvements by @arighi in #2890
• scx_rustland: fix formatting by @sirlucjan in #2897
• scx_wd40: update error message if a cpu has no topology set. by @devnexen in #2883
• scx_rustland_core: Allow to define a default time slice by @arighi in #2898
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2900
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2899
• nix: support aarch64-linux in flake by @JakeHillion in #2902
• scx_lavd: Fix array index mismatch in test_cpu_stickable() by @bboymimi in #2886
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2901
• scx_mitosis: Add debug event recording by @dschatzberg in #2905
• scxtop: Fix panic in BPF event conversion by @hodgesds in #2907
• cargo: Fix target-cpu option by @hodgesds in #2913
• utils: Update cargo dependencies by @hodgesds in #2906
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2917
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2920
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2921
• scx_rustland_core: Avoid unnecessary CPU wakeups by @arighi in #2918
• scx_mitosis: Bump max cells by @dschatzberg in #2924
• scx_rustland_core: Consider user-space scheduler's CPU as idle by @arighi in #2922
• mitosis: bugfixes by @likewhatevs in #2904
• update fmt githook template by @likewhatevs in #2908
• scx_rustland: small latency-oriented improvements by @arighi in #2925
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2926
• ci: update description when modifying an update-kernels pr by @JakeHillion in #2928
• scx_lavd: Fix lost cpu assignment when reusing prev_cpu by @weiso131 in #2916
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2889
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2931
• scx_rustland_core: Remove unused prev_cpu parameter by @charliechiou in #2927
• nix: build scx_chaos with nix by @JakeHillion in #2932
• meson: deprecate harder by @JakeHillion in #2933
• scx_mitosis: Make timer_cb more robust by @dschatzberg in #2929
• scx_mitosis: Fix enqueue vtime stale read by @dschatzberg in #2935
• scx_lavd: Add configurable migration threshold with avg utilization by @daidavid in #2912
• scx_lavd: Add --pinned-slice-us option for improved pinned task respo… by @daidavid in #2930
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2936
• Lavd release 10 23 by @daidavid in #2937
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2941
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2940
• scx_bpfland: Add --preferred-idle-scan option to prioritize faster CPUs by @arighi in #2939
• scx_bpfland: Introduce per-CPU DSQs by @arighi in #2943
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2946
• scx_bpfland: Prevent starvation and improve performance consistency by @arighi in #2948
• scxtop: Add BPF program profiling with perf sampling and source line … by @hodgesds in #2945
• scx_bpfland: Drop ops.cpu_release() by @arighi in #2949
• scx_utils, scx_lavd: Harden the futex tracing. by @multics69 in #2950
• scx_mitosis: Increase debug events buffer size by @dschatzberg in #2954
• scxtop: Fix P99 Runtime chart width in BPF detailed view by @hodgesds in #2955
• scx_bpfland: Don't attempt migrations for sticky tasks by @arighi in #2953
• scx_p2dq: Fix BPF loading failure when sched_core_priority unavailable by @hodgesds in #2957
• scxtop: Use __COMPAT_scx_bpf_events for older kernel support by @hodgesds in #2956
• lib/arena: Fix incorrect cpumask calculation at topo_init(). by @multics69 in #2951
• scx_lavd: Don't use Per-CPU DSQ for pinned tasks by @daidavid in #2964
• scx_lavd: Fix a BPF verifier error (E2BIG) at do_core_compaction(). by @multics69 in #2965
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2967
• scx_lavd: Fix the required tracer name for futex tracing. by @multics69 in #2966
• scxtop: Add Model Context Protocol (MCP) server by @hodgesds in #2963
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2973
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2974
• scx_bpfland: Scale vruntime credit based on queue depth by @arighi in #2968
• docs: update Ubuntu install steps after 25.10 release by @ksacilotto in #2972
• scx_mitosis: Workaround exiting tasks in dead cgs by @dschatzberg in #2971
• Update kernel.config with LAVD specific info by @AdelKS in #2969
• scx_p2dq: Add optimizations for Neoverse-V2 CPUs by @hodgesds in #2975
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2980
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2981
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2982
• scx_loader/scxctl: remove from repository by @JakeHillion in #2977
• scxtop: Refactor process/thread rendering into separate module (Phase 1) by @hodgesds in #2959
• scx_bpfland: Classify sticky tasks based on their average runti...

v1.0.17

What's Changed

• scx_utils: Remove unused crate by @EricccTaiwan in #2742
• scx_utils: package a tarball of vmlinux in the source by @JakeHillion in #2743
• versions: bump versions for 1.0.16 release by @JakeHillion in #2741
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2740
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2744
• scx_cosmos: Introduce --avoid-smt by @arighi in #2735
• rust: add generic arena library setup code and consolidate arena library code to subdir by @etsal in #2747
• scx_util, scx_lavd: Add virtual LLC support by @daidavid in #2705
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2748
• scxtop: Add scx_collect_stats helper by @hodgesds in #2749
• scx_layered: userspace logic for memory-bandwidth based layer growth by @etsal in #2726
• scx_central: making data display update interval flexible. by @devnexen in #2751
• docs: Update installation steps for Ubuntu by @arighi in #2756
• rust: arenalib: Set edition to 2021 by @arighi in #2755
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2753
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2754
• arenalib: make imports a bit easier by @daidavid in #2757
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2752
• scx_p2dq: Add overload scheduling by @hodgesds in #2762
• scx_p2dq: Add LLC sharding by @hodgesds in #2733
• scx_p2dq: Unset overloaded when not overloaded by @hodgesds in #2764
• rust: parse PMU raw events by @etsal in #2750
• scxtop: clarify why perf api could not perform when erroring. by @devnexen in #2765
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2766
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2767
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2768
• services: drop basic scx.service by @sirlucjan in #2769
• scx_rustland_core: Re-enqueue tasks in cpu_release by @EricccTaiwan in #2763
• Instructions for building and managing schedulers using cargo by @sirlucjan in #2772
• README.md: update systemd howto by @sirlucjan in #2773
• scx_mitosis: move tick() to timer by @dschatzberg in #2759
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2775
• scx_loader: update README.md about config file by @sirlucjan in #2774
• scx_mitosis: Use SCX_OPS_DEFINE for struct_ops by @EricccTaiwan in #2746
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2781
• scxcash: Add task hint backend by @kkdwivedi in #2782
• scx_rustland_core: Remove redundant 'static lifetime by @EricccTaiwan in #2778
• lib/scx_layered: add raw PMU tracking module and integrate with scx_layered membw tracking by @etsal in #2779
• CARGO_BUILD: extend information about fetch, test and cross compilation by @sirlucjan in #2786
• load_balance: Remove duplicate node count check by @weiso131 in #2770
• scx_rusty: Initialize bpf wrapper var by @frelon in #2784
• scx_rustland_core: Append ops.version suffix by @EricccTaiwan in #2785
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2789
• scx_raw_pmu: Set edition to 2021 by @arighi in #2790
• scx_rustland/rlfifo: Upgrade procfs version by @EricccTaiwan in #2791
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2788
• scx_loader: add migration guide from scx.service to scx_loader.service by @sirlucjan in #2792
• rust/scx_raw_pmu: adjust parsing for Intel PMUs by @etsal in #2787
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2794
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2795
• scx_rustland_core: Log user ringbuf drain return value by @EricccTaiwan in #2796
• scx_raw_pmu: use include_dir to embed json by @JakeHillion in #2780
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2800
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2801
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2802
• scx_rustland_core: Improve readability by @EricccTaiwan in #2803
• docs: Fix broken links by @weiso131 in #2806
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2809
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2810
• README: Add Kernel Recipes talks by @EricccTaiwan in #2807
• scx_rustland_core: Remove unused variable by @EricccTaiwan in #2804
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2814
• README: Reformat and cleanup by @EricccTaiwan in #2817
• scx_p2dq: Fix keep running by @hodgesds in #2820
• scx_lavd: Improve the calculation of performance criticality threshold by @multics69 in #2815
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2813
• cargo: add xtask crate for repo scripts by @JakeHillion in #2816
• scx_rustland: rename min_vruntime to vruntime_now for clarity by @charliechiou in #2822
• test_sched: ignore RETBleed lines by @JakeHillion in #2824
• versions: add starlark output by @JakeHillion in #2823
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2826
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2827
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2821
• scx_bpfland: Print command line options by @sirlucjan in #2829
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2830
• scx_bpfland: Fix CPU utilization for tasks pinned outside primary domain by @arighi in #2828
• scx_flash: Fix CPU utilization for tasks pinned outside primary domain by @arighi in #2831
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2833
• scx_rustland: avoid dispatch when task pool is empty by @charliechiou in #2832
• scx_rustland: align PartialOrd with Ord by @charliechiou in #2835
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2837
• scx_rustland: refine comment to clarify vruntime_now by @charliechiou in #2836
• scx_rustland_core/bpf.rs: align comments with README by @charliechiou in #2838
• percpu: Properly handle missing percpu symbols by @arighi in #2839
• scx_layered: Add MATCH_CGROUP_REGEX support by @htejun in #2841
• scx_layered: Add virtual LLC support by @htejun in #2845
• versions: extract from cargo metadata by @JakeHillion in #2840
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2849
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2848
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2850
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2851
• Revert "scx_rustland_core: Re-enqueue tasks in cpu_release" by @arighi in https://github.com/sched-ex...

v1.0.16

What's Changed

• versions: bump versions for 1.0.15 release by @JakeHillion in #2600
• scx_utils: include sched version in /sys by @JakeHillion in #2599
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2601
• meson: Add -v option back to builds by @hodgesds in #2579
• scxtop: use PT_REGS_IP() macro by @iii-i in #2602
• scx_utils, scx_lavd: Handle an error in set_rlimit_infinity() gracefully. by @multics69 in #2603
• scxtop: Fix total power calculation in TUI by @hodgesds in #2604
• Small Fixes by @rrnewton in #2606
• scheds: fix unused set_rlimit_infinity() result by @iii-i in #2608
• scx_wd40: No-op task_set_preferred_mempolicy_dom_mask() on ARM64 by @EricccTaiwan in #2610
• scx_utils: refactor version appending to make it work on aarch64 by @JakeHillion in #2611
• lib/btree: add remove and merge operations by @etsal in #2605
• scxtop: Cleanup scheduler TUI view by @hodgesds in #2614
• scxtop: Add last waker to thread view by @hodgesds in #2615
• scx_layered: fix race condition on GPU process layer match logic by @xerothermic in #2607
• scx: Mark smp_mb variable as volatile by @kkdwivedi in #2617
• INSTALL.md: Update ubuntu instructions. by @multics69 in #2618
• scx_lavd: Increase the maximum number of domains to 24. by @multics69 in #2619
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2622
• services: show options instead of setting any by @vnepogodin in #2624
• scxtop: Add colors to charts by @hodgesds in #2616
• scxtop: Fix clippy warnings by @hodgesds in #2626
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2620
• scx_wd40: Fix warning on ARM64 by @EricccTaiwan in #2623
• ci: add basic build check for aarch64 by @JakeHillion in #2612
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2621
• p2dq: Refactor llc_runs handling by @hodgesds in #2627
• scx_mitosis: Retire homegrown RCU implementation by @kkdwivedi in #2613
• scx_lavd: initial refactoring for separate unit compilation by @etsal in #2521
• scx_utils: Add lifetime to cpumask iterator by @hodgesds in #2629
• scx_lavd: continue separate unit compilation refactoring by @etsal in #2630
• scheds: unify a bit more the rust schedulers at exit time. by @devnexen in #2389
• layered: bump version to 1.0.17 by @JakeHillion in #2632
• sync-to-kernel: Skip include/lib and revert missing-file handling by @EricccTaiwan in #2625
• Revert "ci: add basic build check for aarch64" by @JakeHillion in #2633
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2638
• scx_lavd: Fix a verification error on ARM. by @multics69 in #2636
• scx_lavd: Remove unused function by @EricccTaiwan in #2631
• scx_mitosis: Few more clean ups by @kkdwivedi in #2628
• Fix s390 support by @iii-i in #2586
• scx_p2dq: Refactor saturation handling by @hodgesds in #2637
• rust/scx_lib_selftest: add BPF Streams support by @etsal in #2634
• scx_p2dq: Add task slice tracking by @hodgesds in #2641
• scx_p2dq: Add clippy by @hodgesds in #2642
• High frequency dynamic layer switching using hints by @kkdwivedi in #2643
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2645
• scx_lavd: Add LLC id (llc_id) to cpu_ctx and cpdom_ctx. by @multics69 in #2646
• ci: drop arighi-6.12 and apply patch to stable-6.12 by @JakeHillion in #2640
• include/lib: port page fragment allocator from the kernel by @etsal in #2635
• scx_p2dq: Remove unused parameter by @EricccTaiwan in #2649
• p2dq/chaos: remove sources from p2dq lib and symlink into chaos by @JakeHillion in #2651
• scx_lavd: Check Per-CPU dsq on select cpu path by @daidavid in #2653
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2656
• build: switch c scheds to make by @JakeHillion in #2647
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2655
• lib/sdt_alloc: Fix wrong return value by @EricccTaiwan in #2657
• scripts: Update vmlinux to include more configs by @hodgesds in #2658
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2661
• scx_lavd: --per-cpu-dsq shares DSQ between SMT siblings by @daidavid in #2659
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2660
• scxtop: Refactor on_tick method by @hodgesds in #2663
• rust/scx_lib_selftests: explain BPF streams-related error messages by @etsal in #2665
• scx_lavd: Fix return type for cpu_to_dsq by @daidavid in #2666
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2671
• lib: introduce red-black tree by @etsal in #2662
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2667
• scx_utils: few helpers simplifications. by @devnexen in #2670
• scx_p2dq: Add scheduler mode configuration by @hodgesds in #2673
• lib/btree: fix btnode cached allocation/frees by @etsal in #2664
• scx_p2dq: Update saturate CPU selection by @hodgesds in #2676
• Cache Usage Analyzer by @kkdwivedi in #2678
• scx_rustland_core: Use RingBuffer:consume_raw_n() by @arighi in #2681
• scx_p2dq: Update docs by @hodgesds in #2683
• scxcash: Add perf sampling backend by @kkdwivedi in #2679
• scxtop: Add LineGauge support by @hodgesds in #2682
• scx_layered: Added --hi-fb-thread-name to give more CPU time for affinitized task by @xerothermic in #2680
• mitosis: replace layered with mitosis by @sirlucjan in #2688
• scx_mitosis: Add "Unregister" log message by @EricccTaiwan in #2687
• lib/rbtree: add rb_least() and rb_pop() API methods by @etsal in #2691
• mitosis: add version info by @likewhatevs in #2685
• scx_cosmos: Correct comment typo by @EPOCHvoyager in #2692
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2686
• scx_chaos: Log unregister on drop by @EricccTaiwan in #2690
• lib/selftest: add C based runner by @etsal in #2677
• scxtop: Bind both 'q' and 'Q' to Quit action by @EricccTaiwan in #2697
• Bump slab to 0.4.11 by @shunghsiyu in #2689
• lib/atq: Back with rbtrees by @etsal in #2693
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2701
• scx_cosmos: Consider wakeup frequency when determining task deadlines by @arighi in #2696
• Update INSTALL.md by @Sisyphus1813 in #2699
• chore(deps): update stable/6_12 kernel by @JakeHillion in #2702
• scx_mitosis: dynamic cell creation/destruction by @dschatzberg in #2694
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2706
• scxtop: Reduce redundant if-else by @EricccTaiwan in #2707
• scx_utils: Add option for libbpf opts for scx_ops_open by @hodgesds in ...

v1.0.15

What's Changed

• versions: Bump versions for v1.0.14 release by @JakeHillion in #2357
• cargo-publish: add a topological sort by @JakeHillion in #2358
• p2dq/chaos: switch more enqueue cases to be async by @JakeHillion in #2354
• /etc/default/scx: set scx_flash as default scheduler by @sirlucjan in #2360
• scx_p2dq: Set CPU on promise during enqueue by @hodgesds in #2361
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2363
• vmlinuyx_docify: address clippy warnings by @devnexen in #2362
• scxtop: switch cpu_stat_tracker to procfs by @yaakov-stein in #2364
• chaos: re-enable on sched_ext/for-next kernel by @JakeHillion in #2366
• scx_bpf_unittests: add crate to drive BPF unittests by @JakeHillion in #2365
• scxtop: add cpu_frequency tracking by @yaakov-stein in #2367
• scx_lavd: Collect more information for '--monitor-sched-samples' by @multics69 in #2368
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2370
• scxtop: fix trace by @yaakov-stein in #2375
• scx_p2dq: Refactor configuration by @hodgesds in #2376
• scx_p2dq: Fix initialization by @hodgesds in #2377
• scx_lavd: Add 'rerunnable_interval' for '--monitor-sched-samples' by @multics69 in #2372
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2371
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2380
• scx_flash: Scale by task weight when native_priority is set by @marioroy in #2373
• scxtop: add cpu stats to trace by @yaakov-stein in #2378
• scxtop: update default event by @yaakov-stein in #2383
• scx_loader: cleaning and adjusting settings by @sirlucjan in #2374
• scx_lavd: Limit the impact of latency criticality inheritance. by @multics69 in #2384
• scx_p2dq: Add stats for per CPU enqueues by @hodgesds in #2385
• scx_p2dq: Add load balance mode by @hodgesds in #2382
• scxtop: add system stats trace arg by @yaakov-stein in #2386
• nix: fix veristat build by @JakeHillion in #2388
• scxtop: remove unnecesary struct variables by @yaakov-stein in #2391
• scx_lavd: Refactoring struct task_ctx. by @multics69 in #2392
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2393
• scx_bpf_unittests: Filter invalid symbol names in test codegen by @EricccTaiwan in #2387
• cargo: Update build profiles by @hodgesds in #2394
• scxtop: add mem stats by @yaakov-stein in #2390
• ci: reduce number of runs by @JakeHillion in #2396
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2399
• Introduce scx_cosmos by @arighi in #2401
• scx_flash: add to integration-tests by @sirlucjan in #2402
• deps: update libbpf-rs/libbpf-cargo to 0.25.0 by @JakeHillion in #2397
• scxtop: add process cmdline by @yaakov-stein in #2395
• scxtop: adding sched_process_wait trace point. by @devnexen in #2398
• scx_wd40: fix build and build in CI by @JakeHillion in #2404
• scx_loader: add config search path for distributions by @vnepogodin in #2405
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2409
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2408
• scx_loader: add bundled configuration like for scx.service by @vnepogodin in #2406
• scx_loader: Support build-time configuration of vendordir by @ReillyBrogan in #2407
• rust utils: addressing clippy warnings by @devnexen in #2410
• scx_cosmos: Introduce flat idle CPU scan by @arighi in #2411
• atq: Add sized ATQ helper by @hodgesds in #2403
• ci: add required-checks job by @JakeHillion in #2413
• nix: switch to fenix to better pin rust dependencies by @JakeHillion in #2412
• scx_p2dq: Add ATQ for migrations by @hodgesds in #2414
• scxtop: fix trace by @yaakov-stein in #2416
• scx_p2dq: Allow configuring queued wakeup by @hodgesds in #1939
• scxtop: switch from fb_procfs to procfs by @yaakov-stein in #2417
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2419
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2421
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2420
• scx_lavd: Mostly refactoring and clean up, and one preemption optimization. by @multics69 in #2418
• scx_loader: fix typos and and unification of descriptions by @sirlucjan in #2423
• scx_p2dq: Add ATQ for interactive tasks by @hodgesds in #2425
• scx_cosmos: Use flat idle scan only when the system is sufficiently idle by @arighi in #2424
• scx_lavd: Sample dsq_consume latencies by @daidavid in #2428
• scx_p2dq: Update docs by @hodgesds in #2429
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2430
• selftests: Add topology selftest by @hodgesds in #2427
• scxtop: Add "missing scheduler" message by @EricccTaiwan in #2336
• scx_tickless: Add support for preferred cores by @arighi in #2431
• scx_flash: Re-introduce tickless timer by @arighi in #2437
• scx_wd40: Fix indent by @EricccTaiwan in #2433
• scxtop: prevent cargo fmt from editing license by @yaakov-stein in #2436
• scx_mitosis: Add StatsServer by @dforsyth in #2426
• scx_chaos: separate kprobe delays by @yaakov-stein in #2435
• scxtop: add v0 process view by @yaakov-stein in #2434
• scxtop: add cpu system-wide stats by @yaakov-stein in #2439
• scxtop: intercept sched_process_hang trace event. by @devnexen in #2432
• scxtop: fix sched hang prog attach by @yaakov-stein in #2442
• scxtop: update process tables styles by @yaakov-stein in #2444
• scx_lavd: addressing clippy warnings by @devnexen in #2443
• scx_lavd: Boost the time slice of long-running tasks. by @multics69 in #2440
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2446
• scxtop: add cpu util to process by @yaakov-stein in #2445
• scx_utils/topo: Remove unused import by @EricccTaiwan in #2447
• scx_bpf_compat: add crate to detect difficult kernel features and use in layered by @JakeHillion in #2415
• scxtop: add fields to process view by @yaakov-stein in #2450
• ci: use fast-apt-mirror action by @JakeHillion in #2451
• ci: add missing checkout steps by @JakeHillion in #2452
• rust-toolchains: Add rustfmt and clippy components by @EricccTaiwan in #2448
• ci: split rust-tests into lint and build-and-test by @JakeHillion in #2449
• scxtop: add pause capability by @yaakov-stein in #2454
• scxtop: temporary fix for dsq vtime stat by @yaakov-stein in #2455
• scxtop: add pause to help by @yaakov-stein in #2456
• meson: drop libalpm support by @sirlucjan in #2458
• scxtop: clean Cargo.toml by @yaakov-stein in #2459
• scxtop: remove pstate by ...

v1.0.14

What's Changed

• release: scx_userspace_arena should be published before schedulers by @htejun in #2157
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2159
• scx_mitosis: log global + per-cell queue counts. by @tommy-u in #2093
• scx_utils: Use .then_some() to simplify exit_code() by @EricccTaiwan in #2161
• scx_layered: Synchronize among competing preemptors by @htejun in #2165
• lib/sdt_task: Align enum field for consistency by @EricccTaiwan in #2163
• scx_p2dq: Add optimization for pick2 by @hodgesds in #2166
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2167
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2168
• scx_flash: Introduce "turbo" mode by @arighi in #2160
• scx_p2dq: Update handling of affinitized kthreads by @hodgesds in #2169
• load_balance: Refactor get_stats by @EricccTaiwan in #2171
• scx_lavd/main: Simplify cpdom_map construction by @EricccTaiwan in #2158
• scx_flash: Introduce --rr-sched by @arighi in #2174
• scx_lavd: Rework CPU preference ordering considering chip binning. by @multics69 in #2175
• layered: add -V/--version option by @JakeHillion in #2178
• lib/cpumask: use cmpxchg in scx_bitmap_vacate_cpu by @etsal in #2140
• ci: include changelog link when updating kernels by @JakeHillion in #2181
• scx_flash: Introduce --cpu-runqueue by @arighi in #2180
• p2dq: only declare each module once by @JakeHillion in #2183
• scx_mitosis: Remove unused field and helper to suppress warnings by @EricccTaiwan in #2162
• scx_p2dq: Update dispatch DSQ selection to use DSQ iterators by @hodgesds in #2182
• lib: add selftests by @etsal in #2186
• scx_lavd: Refactor FlatTopology. by @multics69 in #2176
• scxtop: add generic bpf kprobe handler by @yaakov-stein in #2185
• scx_p2dq: Optimize dispatch by @hodgesds in #2187
• scxtop: fix number overflow errors by @yaakov-stein in #2188
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2191
• scx_p2dq: Use SCX_DSQ_LOCAL for select_cpu by @hodgesds in #2190
• scx_p2dq: Add deadline scheduling by @hodgesds in #2193
• scx_p2dq: Optimize dispatch_cpu by @hodgesds in #2194
• scx_p2dq: Cleanup consume_llc_compat by @hodgesds in #2195
• scxtop: adding sched_migrate_task tracepoint. by @devnexen in #2196
• scx_utils: Add an environment variable, SCX_SYSFS_PREFIX, for ease of debugging. by @multics69 in #2192
• scxtop: fix dsq0 overflow by @yaakov-stein in #2197
• scx_utils/infeasible: Refactor apply_infeasible_threshold by @EricccTaiwan in #2189
• docs: Add schbench to developer guide by @EricccTaiwan in #2198
• docs: Add cachyos-benchmarker to developer guide by @EricccTaiwan in #2199
• scxtop: fix tracing race bug by @yaakov-stein in #2200
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2201
• scx_rusty: fix typo by @charliechiou in #2202
• layered/chaos: make --version and startup message uniform by @JakeHillion in #2204
• chaos: fix thread error handling by @JakeHillion in #2205
• scx_flash: Improve task re-enqueue by @arighi in #2206
• scx_p2dq: Bump p2dq version by @hodgesds in #2207
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2210
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2211
• scx_lib_selftests/Cargo: Bump edition to 2021 by @EricccTaiwan in #2212
• scxtop: adding kprobe events to trace by @yaakov-stein in #2208
• scx_rusty: Suppress warning on aarch64 by @EricccTaiwan in #2213
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2217
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2216
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2218
• scx_flash: Handle migration-disabled tasks in direct dispatch by @arighi in #2219
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2222
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2223
• scx_rusty: Update aarch64 compat macro by @EricccTaiwan in #2220
• scxtop: fix event clearing bug by @yaakov-stein in #2221
• scx_p2dq: Add migration DSQs by @hodgesds in #2215
• scx_flash: Enable per-CPU DSQs and per-node DSQs by @arighi in #2224
• Add cpufreq/amd_pstate_prefcore_ranking to topology by @ferrreo in #2227
• scxtop: decouple filtering and rendering event list by @yaakov-stein in #2225
• scx_flash: Remove unnecessary parentheses by @EricccTaiwan in #2228
• scx_p2dq: Refactor DSQs by @hodgesds in #2226
• scxtop: make generic kprobe handler sample by @yaakov-stein in #2230
• scxtop: generalize perf events -> profiling events by @yaakov-stein in #2229
• scx_flash: Introduce tickless mode by @arighi in #2231
• scx_utils, scx_lavd: Introduce EnergyModelOptimizer. by @multics69 in #2232
• scx_p2dq: Refactor dispatch path by @hodgesds in #2233
• scxtop: fix kprobe instuction pointer by @yaakov-stein in #2234
• scxtop: add kprobe events to TUI by @yaakov-stein in #2236
• Add basic unit testing for the BPF portion of scx schedulers by @josefbacik in #2238
• scx_lavd: Suppress warning by @EricccTaiwan in #2235
• meson.build: Force to use gnu11 as C standard. by @multics69 in #2239
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #2240
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2241
• meson.build: Suppress warning by @EricccTaiwan in #2243
• lib: add minheap data structure by @etsal in #2179
• scx_chaos: minor typo fix by @yaakov-stein in #2245
• cargo_publish.py: switch from paths to crate names and use publish = … by @JakeHillion in #2244
• scxtop: temporary fix for locale crash by @yaakov-stein in #2248
• scx_p2dq: Add interactive DSQ by @hodgesds in #2237
• scxtop: avoid udnerflow when calculating DSQ vtime delta by @mati865 in #2251
• scx_p2dq: Refactor interactive handling by @hodgesds in #2250
• lib/minheap: error out on invalid capacity sizes by @etsal in #2247
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2254
• lib: Suppress a possibly uninitialized variable warning. by @multics69 in #2255
• ci: run scx_lib_selftests and disable it publishing by @JakeHillion in #2256
• scxtop: bump release to 1.0.15 by @JakeHillion in #2258
• scx_p2dq: Fix interactive load balancing by @hodgesds in #2257
• lib/minheap: Simplify parent index calculation by @EricccTaiwan in #2252
• scx: add more support code for unit tests by @josefbacik in #2260
• scx_mitosis: Small fixups by @dschatzberg in #2261
• scx_flash: Misc improvements by @arighi in #2259
• chore(deps): update bpf/bpf-next k...