diff options
| author | Ian Rogers <irogers@google.com> | 2022-06-14 16:33:53 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-04 13:55:21 +0200 |
| commit | c7202d20fb4584435ce2af5ef3a7a770f79ab59e (patch) | |
| tree | 89cd2a5d2956024a5f6594916fcffe499492297a /tools/perf/util/session.c | |
| parent | perf events: Prefer union over variable length array (diff) | |
| download | linux-c7202d20fb4584435ce2af5ef3a7a770f79ab59e.tar.xz linux-c7202d20fb4584435ce2af5ef3a7a770f79ab59e.zip | |
perf cpumap: Add range data encoding
Often cpumaps encode a range of all CPUs, add a compact encoding that
doesn't require a bit mask or list of all CPUs.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Colin Ian King <colin.king@intel.com>
Cc: Dave Marchevsky <davemarchevsky@fb.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220614143353.1559597-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/session.c')
| -rw-r--r-- | tools/perf/util/session.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 47d5a50e616a..1a4f10de29ff 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -943,6 +943,11 @@ static void perf_event__cpu_map_swap(union perf_event *event, default: pr_err("cpu_map swap: unsupported long size\n"); } + break; + case PERF_CPU_MAP__RANGE_CPUS: + data->range_cpu_data.start_cpu = bswap_16(data->range_cpu_data.start_cpu); + data->range_cpu_data.end_cpu = bswap_16(data->range_cpu_data.end_cpu); + break; default: break; } |