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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-12-16 01:04:41 +0300
committerIngo Molnar <mingo@elte.hu>2009-12-16 10:53:49 +0300
commitc410a33887c17cac95ed8b0d860cdfb5c087a7d8 (patch)
tree54fe6ed5ac64ff77763ff686af58bd36b04e73d6 /tools/perf/builtin-diff.c
parent655000e7c75a559681ee7f15f6fa870c80ae3194 (diff)
downloadlinux-c410a33887c17cac95ed8b0d860cdfb5c087a7d8.tar.xz
perf symbols: Move symbol filtering to event__preprocess_sample()
So that --dsos, --comm, --symbols can bem used in more tools, like in perf diff: $ perf record -f find / > /dev/null $ perf record -f find / > /dev/null $ perf diff --dsos /lib64/libc-2.10.1.so | head -5 1 +22392124 /lib64/libc-2.10.1.so _IO_vfprintf_internal 2 +6410655 /lib64/libc-2.10.1.so __GI_memmove 3 +1 +9192692 /lib64/libc-2.10.1.so _int_malloc 4 -1 -15158605 /lib64/libc-2.10.1.so _int_free 5 +45669 /lib64/libc-2.10.1.so _IO_new_file_xsputn $ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260914682-29652-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-diff.c')
-rw-r--r--tools/perf/builtin-diff.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 4fde60655341..ff91e9c291bb 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -50,6 +50,9 @@ static int diff__process_sample_event(event_t *event, struct perf_session *sessi
return -1;
}
+ if (al.filtered)
+ return 0;
+
event__parse_sample(event, session->sample_type, &data);
if (al.sym && perf_session__add_hist_entry(session, &al, data.period)) {
@@ -182,10 +185,14 @@ blank: memset(displacement, ' ', sizeof(displacement));
printed = fprintf(fp, "%4lu %5.5s ", pos, displacement);
if (show_percent) {
- double old_percent = (old_count * 100) / pair_session->events_stats.total,
- new_percent = (self->count * 100) / session->events_stats.total;
- double diff = old_percent - new_percent;
+ double old_percent = 0, new_percent = 0, diff;
+
+ if (pair_session->events_stats.total > 0)
+ old_percent = (old_count * 100) / pair_session->events_stats.total;
+ if (session->events_stats.total > 0)
+ new_percent = (self->count * 100) / session->events_stats.total;
+ diff = old_percent - new_percent;
if (verbose)
printed += fprintf(fp, " %3.2f%% %3.2f%%", old_percent, new_percent);
@@ -260,6 +267,12 @@ static const struct option options[] = {
"Don't shorten the pathnames taking into account the cwd"),
OPT_BOOLEAN('P', "full-paths", &event_ops.full_paths,
"Don't shorten the pathnames taking into account the cwd"),
+ OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
+ "only consider symbols in these dsos"),
+ OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
+ "only consider symbols in these comms"),
+ OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
+ "only consider these symbols"),
OPT_END()
};