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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-12-16 17:55:56 +0100
committerIngo Molnar <mingo@elte.hu>2009-12-16 18:30:13 +0100
commit60ab271617cec607380099f3ed8e84916e48323b (patch)
treefc43fd9f59e2743239c1c24efaf8686e9bc30f99 /tools/perf/builtin-record.c
parent856e96608a72412d319e498a3a7c557571f811bd (diff)
downloadlinux-2.6.34-ux500-60ab271617cec607380099f3ed8e84916e48323b.tar.gz
perf record: Use per-task-per-cpu events for inherited events
Create events with a pid and cpu contraint for inherited events so that we get a stream per cpu, instead of all cpus contending on a single stream. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <20091216165904.987643843@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-record.c')
-rw-r--r--tools/perf/builtin-record.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 9b7c6d887d5..63136d0534d 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -278,7 +278,7 @@ static void create_counter(int counter, int cpu, pid_t pid)
attr->mmap = track;
attr->comm = track;
- attr->inherit = (cpu < 0) && inherit;
+ attr->inherit = inherit;
attr->disabled = 1;
try_again:
@@ -537,7 +537,7 @@ static int __cmd_record(int argc __used, const char **argv)
}
- if (!system_wide || profile_cpu != -1) {
+ if ((!system_wide && !inherit) || profile_cpu != -1) {
open_counters(profile_cpu, target_pid);
} else {
for (i = 0; i < nr_cpus; i++)