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 runtime by @arighi in #2984
• scxtop: Refactor memory rendering into separate module (Phase 2) by @hodgesds in #2960
• selftests: Add arena bpf timer selftest by @hodgesds in #2985
• scx_arena: Fix arena topo initialization on CXL machines by @hodgesds in #2988
• scx_mitosis: Fix tasks getting vtime too far ahead by @tommy-u in #2978
• scx_bpfland: Rethink per-CPU tasks prioritization by @arighi in #2987
• scxtop: Refactor network rendering into separate module (Phase 3) by @hodgesds in #2961
• scxtop: Refactor scheduler rendering into separate module (Phase 4) by @hodgesds in #2962
• scx_bpfland: Dynamic time slice by @arighi in #2989
• scx: Introduce scx_bpf_dsq_peek() by @arighi in #2990
• scxtop: Refactor BPF program rendering into separate module (Phase 5) by @hodgesds in #2976
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2979
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #2993
• scx_p2dq: Use peek api for dispatch by @hodgesds in #2992
• scx_lavd: Reduce the BPF program size. by @multics69 in #2994
• scheds: Introduce scx_beerland 🍻 by @arighi in #2991
• chore(deps): update stable/6_12 kernel by @scx-ci-bot in #2995
• chore(deps): update stable/linux-rolling-stable kernel by @scx-ci-bot in #2996
• scx_beerland: add to integration-tests by @sirlucjan in #2999
• scxtop: Add comprehensive MCP event analyzer infrastructure with auto… by @hodgesds in #3000
• scxtop: Add softirq analyzer with selective BPF program attachment by @hodgesds in #3001
• vmlinux: Update to v6.18-rc4 by @etsal in #3002
• scx_arena, scx_wd40: remove Rust 1.91 warnings by @etsal in #3003
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3004
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3005
• lib/topology: Add two utility functions: topo_cpu_to_llc_id() and TOPO_NR(type). by @multics69 in #3006
• scxtop: Add comprehensive perfetto trace analysis MCP server by @hodgesds in #3007
• bpf_unittests: Remove p2dq tests by @hodgesds in #3013
• scx_lavd: Reintroduce using Per-Cpu DSQs for pinned tasks by @daidavid in #3014
• scx_mitosis: Fix runnable task stall by @tommy-u in #3015
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3008
• chore(deps): update sched_ext/for-next kernel by @scx-ci-bot in #3009
• lib/atq: Don't print an error message when -ENOENT at scx_atq_pop(). by @multics69 in #3010
• ci: bump vng memory for cargo-nextest to 16GB by @JakeHillion in #3023
• scx_p2dq: Refactor dispatch to use peek API and handle affinity changes by @hodgesds in #3024
• scx_layered: Fix core allocation for StickyDynamic by @kkdwvd in #3027
• scxtop: Do not use is_multiple_of() to avoid an E0658 error. by @multics69 in #3028
• chore(deps): update bpf/bpf-next kernel by @scx-ci-bot in #3029
• scx_p2dq: Make interactive sticky dispatch to per CPU DSQs by @hodgesds in #3025

New Contributors

• @bboymimi made their first contribution in #2886
• @AdelKS made their first contribution in #2969

Full Changelog: v1.0.17...v1.0.18