Commit 1962ab6f authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo
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perf test workload thloop: Make count increments atomic 



The count variable is incremented by multiple threads, doing so
without an atomic operation causes thread sanitizer warnings. Switch
to using relaxed atomics.

Signed-off-by: default avatarIan Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230114215251.271678-1-irogers@google.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 316769f7

tools/perf/tests/workloads/thloop.c

+1 −1
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ static void sighandler(int sig __maybe_unused) 
noinline void test_loop(void)

{

	while (!done)

		count++;

		__atomic_fetch_add(&count, 1, __ATOMIC_RELAXED);

}



static void *thfunc(void *arg)