diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-record.c | 8 | ||||
| -rw-r--r-- | tools/perf/util/evlist.c | 8 | ||||
| -rw-r--r-- | tools/perf/util/evlist.h | 2 | ||||
| -rw-r--r-- | tools/perf/util/mmap.c | 30 | ||||
| -rw-r--r-- | tools/perf/util/mmap.h | 4 |
5 files changed, 44 insertions, 8 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 45a80b3584ad..ca6d7488e34b 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -372,6 +372,8 @@ static int record__mmap_flush_parse(const struct option *opt, return 0; } +static unsigned int comp_level_max = 22; + static int record__comp_enabled(struct record *rec) { return rec->opts.comp_level > 0; @@ -587,7 +589,7 @@ static int record__mmap_evlist(struct record *rec, opts->auxtrace_mmap_pages, opts->auxtrace_snapshot_mode, opts->nr_cblocks, opts->affinity, - opts->mmap_flush) < 0) { + opts->mmap_flush, opts->comp_level) < 0) { if (errno == EPERM) { pr_err("Permission error mapping pages.\n" "Consider increasing " @@ -2298,6 +2300,10 @@ int cmd_record(int argc, const char **argv) pr_debug("affinity: %s\n", affinity_tags[rec->opts.affinity]); pr_debug("mmap flush: %d\n", rec->opts.mmap_flush); + if (rec->opts.comp_level > comp_level_max) + rec->opts.comp_level = comp_level_max; + pr_debug("comp level: %d\n", rec->opts.comp_level); + err = __cmd_record(&record, argc, argv); out: perf_evlist__delete(rec->evlist); diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 4b6783ff5813..69d0fa8ab16f 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1009,7 +1009,8 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str, */ int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages, unsigned int auxtrace_pages, - bool auxtrace_overwrite, int nr_cblocks, int affinity, int flush) + bool auxtrace_overwrite, int nr_cblocks, int affinity, int flush, + int comp_level) { struct perf_evsel *evsel; const struct cpu_map *cpus = evlist->cpus; @@ -1019,7 +1020,8 @@ int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages, * Its value is decided by evsel's write_backward. * So &mp should not be passed through const pointer. */ - struct mmap_params mp = { .nr_cblocks = nr_cblocks, .affinity = affinity, .flush = flush }; + struct mmap_params mp = { .nr_cblocks = nr_cblocks, .affinity = affinity, .flush = flush, + .comp_level = comp_level }; if (!evlist->mmap) evlist->mmap = perf_evlist__alloc_mmap(evlist, false); @@ -1051,7 +1053,7 @@ int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages, int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages) { - return perf_evlist__mmap_ex(evlist, pages, 0, false, 0, PERF_AFFINITY_SYS, 1); + return perf_evlist__mmap_ex(evlist, pages, 0, false, 0, PERF_AFFINITY_SYS, 1, 0); } int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target) diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index c9a0f72677fd..49354fe24d5f 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -178,7 +178,7 @@ unsigned long perf_event_mlock_kb_in_pages(void); int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages, unsigned int auxtrace_pages, bool auxtrace_overwrite, int nr_cblocks, - int affinity, int flush); + int affinity, int flush, int comp_level); int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages); void perf_evlist__munmap(struct perf_evlist *evlist); diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c index ef3d79b2c90b..d85e73fc82e2 100644 --- a/tools/perf/util/mmap.c +++ b/tools/perf/util/mmap.c @@ -157,6 +157,10 @@ void __weak auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp __mayb } #ifdef HAVE_AIO_SUPPORT +static int perf_mmap__aio_enabled(struct perf_mmap *map) +{ + return map->aio.nr_cblocks > 0; +} #ifdef HAVE_LIBNUMA_SUPPORT static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx) @@ -198,7 +202,7 @@ static int perf_mmap__aio_bind(struct perf_mmap *map, int idx, int cpu, int affi return 0; } -#else +#else /* !HAVE_LIBNUMA_SUPPORT */ static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx) { map->aio.data[idx] = malloc(perf_mmap__mmap_len(map)); @@ -359,7 +363,12 @@ int perf_mmap__aio_push(struct perf_mmap *md, void *to, int idx, return rc; } -#else +#else /* !HAVE_AIO_SUPPORT */ +static int perf_mmap__aio_enabled(struct perf_mmap *map __maybe_unused) +{ + return 0; +} + static int perf_mmap__aio_mmap(struct perf_mmap *map __maybe_unused, struct mmap_params *mp __maybe_unused) { @@ -374,6 +383,10 @@ static void perf_mmap__aio_munmap(struct perf_mmap *map __maybe_unused) void perf_mmap__munmap(struct perf_mmap *map) { perf_mmap__aio_munmap(map); + if (map->data != NULL) { + munmap(map->data, perf_mmap__mmap_len(map)); + map->data = NULL; + } if (map->base != NULL) { munmap(map->base, perf_mmap__mmap_len(map)); map->base = NULL; @@ -442,6 +455,19 @@ int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int c map->flush = mp->flush; + map->comp_level = mp->comp_level; + + if (map->comp_level && !perf_mmap__aio_enabled(map)) { + map->data = mmap(NULL, perf_mmap__mmap_len(map), PROT_READ|PROT_WRITE, + MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); + if (map->data == MAP_FAILED) { + pr_debug2("failed to mmap data buffer, error %d\n", + errno); + map->data = NULL; + return -1; + } + } + if (auxtrace_mmap__mmap(&map->auxtrace_mmap, &mp->auxtrace_mp, map->base, fd)) return -1; diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h index b82f8c2d55c4..4e2f58d95c1f 100644 --- a/tools/perf/util/mmap.h +++ b/tools/perf/util/mmap.h @@ -40,6 +40,8 @@ struct perf_mmap { #endif cpu_set_t affinity_mask; u64 flush; + void *data; + int comp_level; }; /* @@ -71,7 +73,7 @@ enum bkw_mmap_state { }; struct mmap_params { - int prot, mask, nr_cblocks, affinity, flush; + int prot, mask, nr_cblocks, affinity, flush, comp_level; struct auxtrace_mmap_params auxtrace_mp; }; |