Merge pull request #7044 from knn-k/linuxppc64HiresClock

Linux PPC64: Use clock_gettime() for omrtime_hires_clock()
eclipse-openj9 · Jun 23, 2023 · 2d5ac63 · 2d5ac63
2 parents 59b55e3 + 7a9830e
commit 2d5ac63
Showing 1 changed file with 8 additions and 6 deletions.
diff --git a/port/linuxppc64/omrtime.c b/port/linuxppc64/omrtime.c
@@ -165,14 +165,16 @@ omrtime_nano_time(struct OMRPortLibrary *portLibrary)
 uint64_t
 omrtime_hires_clock(struct OMRPortLibrary *portLibrary)
 {
-	struct timeval tp;
-
+	uint64_t ret = 0;
 	if (systemcfgP_nanos) {
-		return __getNanos();
+		ret = __getNanos();
+	} else {
+		struct timespec ts;
+		if (0 == clock_gettime(CLOCK_MONOTONIC_RAW, &ts)) {
+			ret = ((uint64_t)ts.tv_sec * OMRTIME_NANOSECONDS_PER_SECOND) + (uint64_t)ts.tv_nsec;
+		}
 	}
-
-	gettimeofday(&tp, NULL);
-	return ((int64_t)tp.tv_sec) * OMRTIME_HIRES_CLOCK_FREQUENCY + tp.tv_usec * (OMRTIME_HIRES_CLOCK_FREQUENCY / 1000000);
+	return ret;
 }
 /**
  * Query OS for clock frequency