diff options
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 7ced5f3e8100..3fdfbaebd95e 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -38,6 +38,7 @@ #include "util/bpf-loader.h" #include "util/trigger.h" #include "util/perf-hooks.h" +#include "util/cpu-set-sched.h" #include "util/time-utils.h" #include "util/units.h" #include "util/bpf-event.h" @@ -536,6 +537,9 @@ static int record__mmap_evlist(struct record *rec, struct record_opts *opts = &rec->opts; char msg[512]; + if (opts->affinity != PERF_AFFINITY_SYS) + cpu__setup_cpunode_map(); + if (perf_evlist__mmap_ex(evlist, opts->mmap_pages, opts->auxtrace_mmap_pages, opts->auxtrace_snapshot_mode, @@ -719,6 +723,16 @@ static struct perf_event_header finished_round_event = { .type = PERF_RECORD_FINISHED_ROUND, }; +static void record__adjust_affinity(struct record *rec, struct perf_mmap *map) +{ + if (rec->opts.affinity != PERF_AFFINITY_SYS && + !CPU_EQUAL(&rec->affinity_mask, &map->affinity_mask)) { + CPU_ZERO(&rec->affinity_mask); + CPU_OR(&rec->affinity_mask, &rec->affinity_mask, &map->affinity_mask); + sched_setaffinity(0, sizeof(rec->affinity_mask), &rec->affinity_mask); + } +} + static int record__mmap_read_evlist(struct record *rec, struct perf_evlist *evlist, bool overwrite) { @@ -746,6 +760,7 @@ static int record__mmap_read_evlist(struct record *rec, struct perf_evlist *evli struct perf_mmap *map = &maps[i]; if (map->base) { + record__adjust_affinity(rec, map); if (!record__aio_enabled(rec)) { if (perf_mmap__push(map, rec, record__pushfn) != 0) { rc = -1; |