diff options
| author | Song Liu <song@kernel.org> | 2021-04-25 14:43:31 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 10:30:58 -0300 |
| commit | 112cb56164bc2108a55aee785d841a35aab0616a (patch) | |
| tree | fec53329a1865ca4f3a26f09e4f74f2b816b1e5b /tools/perf/util/config.c | |
| parent | fe3dd8263b9f3912a0f3a2f66c0fdb3987d69a1a (diff) | |
perf stat: Introduce config stat.bpf-counter-events
Currently, to use BPF to aggregate perf event counters, the user uses
--bpf-counters option. Enable "use bpf by default" events with a config
option, stat.bpf-counter-events. Events with name in the option will use
BPF.
This also enables mixed BPF event and regular event in the same sesssion.
For example:
perf config stat.bpf-counter-events=instructions
perf stat -e instructions,cs
The second command will use BPF for "instructions" but not "cs".
Signed-off-by: Song Liu <song@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/r/20210425214333.1090950-4-song@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/config.c')
| -rw-r--r-- | tools/perf/util/config.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index 6bcb5ef221f8c..63d472b336de2 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -18,6 +18,7 @@ #include "util/hist.h" /* perf_hist_config */ #include "util/llvm-utils.h" /* perf_llvm_config */ #include "util/stat.h" /* perf_stat__set_big_num */ +#include "util/evsel.h" /* evsel__hw_names, evsel__use_bpf_counters */ #include "build-id.h" #include "debug.h" #include "config.h" @@ -460,6 +461,9 @@ static int perf_stat_config(const char *var, const char *value) if (!strcmp(var, "stat.no-csv-summary")) perf_stat__set_no_csv_summary(perf_config_bool(var, value)); + if (!strcmp(var, "stat.bpf-counter-events")) + evsel__bpf_counter_events = strdup(value); + /* Add other config variables here. */ return 0; } |