feat(perf): event groups, PERF_SAMPLE_READ, group-leader sampling, and perf record -a fan-out#1603

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JosephJoshua wants to merge 44 commits into

rcore-os:devfrom

oscomp-posad:feat/perf-group-sampling

Commits on Jul 10, 2026

feat(axcpu): MIDR ClusterId classifier + PMU clean-slate helpers
JosephJoshua
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feat(starry): per-core PMU bring-up + cached cluster identity
JosephJoshua
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feat(starry): per-CPU PMU pools + per-slice counter allocation
JosephJoshua
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test(starry): smp4 perf per-CPU migration + no-exhaustion tests
JosephJoshua
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feat(starry): perf stat -a per-CPU fan-out + per-core PMCR.E
JosephJoshua
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test(starry): smp4 perf stat -a per-CPU fan-out test
JosephJoshua
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feat(axtask): nullable per-CPU perf-tick hook in timer path
JosephJoshua
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feat(starry): Tier-2 PMU counter rotation (multiplexing)
JosephJoshua
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test(starry): smp4 Tier-2 counter multiplexing test
JosephJoshua
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feat(starry): big.LITTLE cluster-aware perf programming + branch-event fix
JosephJoshua
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feat(starry): dual-cluster sysfs PMUs armv8_cortex_a55/a76
JosephJoshua
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test(starry): smp4 big.LITTLE cluster-skip + dual-PMU test
JosephJoshua
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fix(starry): perf review fixes — slice accounting, exit-lock, rotation
JosephJoshua
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test(starry): reset perf_test_force_clusters on cluster-test exit
JosephJoshua
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fix(starry): pin self/system-wide perf event HW lifecycle to home core
JosephJoshua
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test(starry): smp4 home-core IPI test (cpu<0 event, migrated monitor)
JosephJoshua
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test(starry): RK3588 big.LITTLE perf board-validation suite
JosephJoshua
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fix(starry): map perf mmap pages cacheable for hardware coherency
JosephJoshua
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test(starry): fix perf-validate cap_user_rdpmc bitfield offset
JosephJoshua
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test(starry): perf-validate board deploy path + mechanics (validated on hardware)
JosephJoshua
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test(starry): smp8 multi-core validated on board; fix BR-7/IPC-1 artifacts
JosephJoshua
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test(starry): relocate perf SMP tests into the consolidated qemu/ group
JosephJoshua
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test(starry): raise perf-validate board timeout to 900s
JosephJoshua
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feat(starry): perf PERF_FORMAT_LOST + ring lost-sample accounting
JosephJoshua
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test(starry): on-target perf smoke case + pinned build recipe
JosephJoshua
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test(starry): libelf perf build recipe (user-symbol names)
JosephJoshua
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Commits on Jul 11, 2026

Commits on Jul 14, 2026