diff options
Diffstat (limited to 'tools/perf/builtin-diff.c')
| -rw-r--r-- | tools/perf/builtin-diff.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index a0b531c14b9..1063c31e507 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -24,6 +24,7 @@ static char const *input_old = "perf.data.old", static char diff__default_sort_order[] = "dso,symbol"; static bool force; static bool show_displacement; +static bool show_baseline_only; static int hists__add_entry(struct hists *self, struct addr_location *al, u64 period) @@ -172,6 +173,31 @@ static void perf_evlist__resort_hists(struct perf_evlist *evlist, bool name) } } +static void hists__baseline_only(struct hists *hists) +{ + struct rb_node *next = rb_first(&hists->entries); + + while (next != NULL) { + struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); + + next = rb_next(&he->rb_node); + if (!he->pair) { + rb_erase(&he->rb_node, &hists->entries); + hist_entry__free(he); + } + } +} + +static void hists__process(struct hists *old, struct hists *new) +{ + hists__match(old, new); + + if (show_baseline_only) + hists__baseline_only(new); + + hists__fprintf(new, true, 0, 0, stdout); +} + static int __cmd_diff(void) { int ret, i; @@ -213,8 +239,7 @@ static int __cmd_diff(void) first = false; - hists__match(&evsel_old->hists, &evsel->hists); - hists__fprintf(&evsel->hists, true, 0, 0, stdout); + hists__process(&evsel_old->hists, &evsel->hists); } out_delete: @@ -235,6 +260,8 @@ static const struct option options[] = { "be more verbose (show symbol address, etc)"), OPT_BOOLEAN('M', "displacement", &show_displacement, "Show position displacement relative to baseline"), + OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, + "Show only items with match in baseline"), OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"), OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), |