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authorDave Airlie <airlied@redhat.com>2018-07-04 10:27:12 +1000
committerDave Airlie <airlied@redhat.com>2018-07-04 10:27:12 +1000
commitf29135ee4e0d4e01911ed569f731bfdb841cea6d (patch)
treee72d49a2f677dd069c3a673522cf785548148f71 /tools/perf/bench/numa.c
parenteab976693153b9854bfa83d131374748f6ca4280 (diff)
parent021c91791a5e7e85c567452f1be3e4c2c6cb6063 (diff)
Merge v4.18-rc3 into drm-next
Two requests have come in for a backmerge, and I've got some pull reqs on rc2, so this just makes sense. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'tools/perf/bench/numa.c')
-rw-r--r--tools/perf/bench/numa.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 63eb49082774..44195514b19e 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -1098,7 +1098,7 @@ static void *worker_thread(void *__tdata)
u8 *global_data;
u8 *process_data;
u8 *thread_data;
- u64 bytes_done;
+ u64 bytes_done, secs;
long work_done;
u32 l;
struct rusage rusage;
@@ -1254,7 +1254,8 @@ static void *worker_thread(void *__tdata)
timersub(&stop, &start0, &diff);
td->runtime_ns = diff.tv_sec * NSEC_PER_SEC;
td->runtime_ns += diff.tv_usec * NSEC_PER_USEC;
- td->speed_gbs = bytes_done / (td->runtime_ns / NSEC_PER_SEC) / 1e9;
+ secs = td->runtime_ns / NSEC_PER_SEC;
+ td->speed_gbs = secs ? bytes_done / secs / 1e9 : 0;
getrusage(RUSAGE_THREAD, &rusage);
td->system_time_ns = rusage.ru_stime.tv_sec * NSEC_PER_SEC;