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| author | Scott Gasch <[email protected]> | 2026-10-05 11:17:58 -0700 |
|---|---|---|
| committer | Scott Gasch <[email protected]> | 2026-10-05 11:17:58 -0700 |
| commit | 5d9a5cf4036d07252e81d51e78e6dd36e65c9275 (patch) | |
| tree | f1c80ddb37f32b3a165e11903427efd3e8c60aa8 /tests/everything.ep_ | |
| parent | e5c845d7e0b936641158909dbc516a79958c74e8 (diff) | |
Document root-free profiling on Linux (gprof) and FreeBSD (pmcstat).
The original PROFILE notes were lost (never committed, per CLAUDE.md's
scratch-file guidance). Recovered the FreeBSD pmcstat+gprof workflow from
a ZFS snapshot on wannabe.house and verified it live: contrary to the
recovered notes' assumption, process-mode sampling (-P) and the gprof
conversion pipeline run fine as a non-root user once hwpmc.ko is loaded
(only the kldload itself needs root, and it's usually already loaded).
On this Linux box, perf is blocked (perf_event_paranoid=4, no CAP_PERFMON)
with no non-root workaround, so added a GPROF=1 gmake flag (-pg) and
verified the full gprof flat-profile/call-graph pipeline end to end.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Diffstat (limited to 'tests/everything.ep_')
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