Re: [PATCH v1 1/8] perf test: Skip data_type_profiling when the PMU cannot record memory events
flat view
From: sashiko-bot@kernel.org
Date: 2026-09-13 02:40:15
From: Arnaldo Carvalho de Melo <redacted>
The test records with 'perf mem record' in per-thread mode and its only
guard matches one specific message:
perf mem record -o /dev/null -- true 2>&1 | \
grep -q "failed: no PMU supports the memory events" && exit 2
A PMU that has memory events but refuses them per-thread falls through
it, and AMD IBS does:
$ perf mem record -o /dev/null -- true
Error:
Failure to open event 'ibs_op/ldlat=0/u' on PMU 'ibs_op' which will be removed.
Invalid event (ibs_op/ldlat=0/u) in per-thread mode, enable system wide with '-a'.
[ ... ]
Pipe C perf annotate test
Pipe annotate [Failed: perf record]
Assisted-by: LLM
Signed-off-by: Arnaldo Carvalho de Melo <redacted>Sashiko has reviewed this patch and found no issues. It looks great! -- Sashiko AI review · https://sashiko.dev/#/patchset/20260913023459.112654-1-acme@kernel.org?part=1