* More perf events reordering
@ 2023-11-30 21:29 Andi Kleen
0 siblings, 0 replies; only message in thread
From: Andi Kleen @ 2023-11-30 21:29 UTC (permalink / raw)
To: irogers; +Cc: linux-perf-users
(on a Intel system with TopDown metrics, Icelake+)
$ ~/perf stat -e 'slots,cycles,slots' true
WARNING: events were regrouped to match PMUs
Performance counter stats for 'true':
<not counted> cpu_core/slots/
<not supported> cpu_core/slots/
1,458,844 cpu_atom/cycles/
<not counted> cpu_core/cycles/ (0.00%)
0.001501970 seconds time elapsed
0.001621000 seconds user
0.000000000 seconds sys
Output is unexpected order.
I don't think there should be any reordering without a group.
-Andi
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-11-30 21:29 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-11-30 21:29 More perf events reordering Andi Kleen
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).