diff options
| author |   Ian Rogers <irogers@google.com> | 2022-01-04 22:13:29 -0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-12 14:28:22 -0300 |
| commit | 2ca0a3718da24953689b1771589ac63b60f17358 (patch) | |
| tree | 98994d291abab04e999dfe9e786b2627979379f5 /tools/perf/util/counts.c | |
| parent | perf stat-display: Avoid use of core for CPU (diff) | |
| download | linux-dev-2ca0a3718da24953689b1771589ac63b60f17358.tar.xz linux-dev-2ca0a3718da24953689b1771589ac63b60f17358.zip | |
perf evsel: Derive CPUs and threads in alloc_counts
Passing the number of CPUs and threads allows for an evsel's counts to
be mismatched to its cpu map. To avoid this always derive the counts
size from the cpu map. Change openat-syscall-all-cpus to set the cpus
to allow for this to work.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-27-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/counts.c')
| -rw-r--r-- | tools/perf/util/counts.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c index 582f3aeaf5e4..2b81707b9dba 100644 --- a/tools/perf/util/counts.c +++ b/tools/perf/util/counts.c @@ -4,6 +4,7 @@ #include <string.h> #include "evsel.h" #include "counts.h" +#include <perf/threadmap.h> #include <linux/zalloc.h> struct perf_counts *perf_counts__new(int ncpus, int nthreads) @@ -55,9 +56,12 @@ void evsel__reset_counts(struct evsel *evsel) perf_counts__reset(evsel->counts); } -int evsel__alloc_counts(struct evsel *evsel, int ncpus, int nthreads) +int evsel__alloc_counts(struct evsel *evsel) { - evsel->counts = perf_counts__new(ncpus, nthreads); + struct perf_cpu_map *cpus = evsel__cpus(evsel); + int nthreads = perf_thread_map__nr(evsel->core.threads); + + evsel->counts = perf_counts__new(cpus ? cpus->nr : 1, nthreads); return evsel->counts != NULL ? 0 : -ENOMEM; } |