Commit cf103a14 authored Jun 16, 2010 by Stephane Eranian Committed by Arnaldo Carvalho de Melo Jun 17, 2010

perf record: Avoid synthesizing mmap() for all processes in per-thread mode



A bug was introduced by commit c45c6ea2.

Perf record was scanning /proc/PID to create synthetic PERF_RECOR_MMAP
entries even though it was running in per-thread mode. There was a bogus
check to select what mmaps to synthesize. We only need all processes in
system-wide mode.

Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <4c192107.4f1ee30a.4316.fffff98e@mx.google.com>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent f9af3a4c

tools/perf/builtin-record.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -714,7 +714,7 @@ static int __cmd_record(int argc, const char **argv)
		if (perf_guest)
		perf_session__process_machines(session, event__synthesize_guest_os);

		if (!system_wide && cpu_list)
		if (!system_wide)
		event__synthesize_thread(target_tid, process_synthesized_event,
		session);
		else