[PATCH v4 6/6] perf arm-spe: Don't wait for PERF_RECORD_EXIT event

Leo Yan leo.yan at linaro.org
Mon Apr 12 10:10:06 BST 2021


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 <leo.yan at linaro.org>
---
 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 b37d1cacebe9..654fa2413823 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




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