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>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 9b7c6d887d5a..63136d0534d4 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++)