[PATCH v5 5/5] perf arm-spe: Don't wait for PERF_RECORD_EXIT event
From: Leo Yan <hidden>
Date: 2021-05-19 07:20:18
Also in:
linux-arm-kernel, lkml
Subsystem:
performance events subsystem, performance events tooling arm64, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
When decode Arm SPE trace, it waits for PERF_RECORD_EXIT event (the last perf event) for processing trace data, which is needless and even might cause logic error, e.g. it might fail to correlate perf events with Arm SPE events correctly. So this patch removes the condition checking for PERF_RECORD_EXIT event. Signed-off-by: Leo Yan <redacted> --- tools/perf/util/arm-spe.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 5c5b438584c4..58b7069c5a5f 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c@@ -717,11 +717,7 @@ static int arm_spe_process_event(struct perf_session *session, sample->time); } } else if (timestamp) { - if (event->header.type == PERF_RECORD_EXIT) { - err = arm_spe_process_queues(spe, timestamp); - if (err) - return err; - } + err = arm_spe_process_queues(spe, timestamp); } return err;
--
2.25.1