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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-30 10:08:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-30 10:08:09 +0200
commitd2fc88a61b4ea99f574bde16e92718e22f312136 (patch)
treef256841ebcbc3b90fc29d7fa751610ba9aac5a2b /tools/perf/bench/numa.c
parente16f4f3e0b7daecd48d4f944ab4147c1a6cb16a8 (diff)
parentacb1872577b346bd15ab3a3f8dff780d6cca4b70 (diff)
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Merge 4.18-rc7 into driver-core-next
We need the driver core changes in here as well for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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;