lkml.org 
[lkml]   [2022]   [May]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
Subject[PATCH v3 0/2] Fix topdown event weak grouping
From
Keep topdown events within a group when a weak group is broken. This
is a requirement as topdown events must form a group.

Add perf stat testing including for required topdown event group
behaviors.

Note: as with existing topdown evsel/evlist code topdown events are
assumed to be on the PMU "cpu". On Alderlake the PMU "cpu_core" should
also be tested. Future changes can fix Alderlake.

v3. Fix computation of number of events in leader's group.
Adds reviewed-by: Liang, Kan <kan.liang@linux.intel.com
v2. Correct behavior wrt pmu prefixed events and avoid the test using
deprecated events: Suggested-by: Liang, Kan <kan.liang@linux.intel.com>

Ian Rogers (2):
perf evlist: Keep topdown counters in weak group
perf test: Add basic stat and topdown group test

tools/perf/arch/x86/util/evsel.c | 12 ++++++
tools/perf/tests/shell/stat.sh | 67 ++++++++++++++++++++++++++++++++
tools/perf/util/evlist.c | 16 +++++++-
tools/perf/util/evsel.c | 10 +++++
tools/perf/util/evsel.h | 3 ++
5 files changed, 106 insertions(+), 2 deletions(-)
create mode 100755 tools/perf/tests/shell/stat.sh

--
2.36.0.550.gb090851708-goog

\
 
 \ /
  Last update: 2022-05-17 07:28    [W:0.047 / U:25.556 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site