From cf103a14dd2ab23f847e998c8881ea4a5f8090bf Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Wed, 16 Jun 2010 20:59:01 +0200 Subject: [PATCH] perf record: Avoid synthesizing mmap() for all processes in per-thread mode MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit A bug was introduced by commit c45c6ea2e5c57960dc67e00294c2b78e9540c007. 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 Cc: Frédéric Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian LKML-Reference: <4c192107.4f1ee30a.4316.fffff98e@mx.google.com> Signed-off-by: Stephane Eranian Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 39c7247bc54a..5efc3fc68a36 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -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 -- 2.20.1