The PERF_RECORD_FINISHED_ROUND governs queue flushing in
reporting, so it needs to be stored for any kind of event.
Forcing the PERF_RECORD_FINISHED_ROUND event to be stored any
time we finish the round and wrote at least one event.
Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Jean Pihet <jean.pi...@linaro.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Signed-off-by: Jiri Olsa <jo...@kernel.org>
---
tools/perf/builtin-record.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 378b85b731a7..4869050e7194 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -238,6 +238,7 @@ static struct perf_event_header finished_round_event = {
static int record__mmap_read_all(struct record *rec)
{
+ u64 bytes_written = rec->bytes_written;
int i;
int rc = 0;
@@ -250,7 +251,11 @@ static int record__mmap_read_all(struct record *rec)
}
}
- if (perf_header__has_feat(&rec->session->header, HEADER_TRACING_DATA))
+ /*
+ * Mark the round finished in case we wrote
+ * at least one event.
+ */
+ if (bytes_written != rec->bytes_written)
rc = record__write(rec, &finished_round_event,
sizeof(finished_round_event));
out:
--
1.8.3.1
--
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