time: add ntime_since_now()

Convert filecreate engine to using it as well. Signed-off-by: Jens Axboe <[email protected]>
pmem · Oct 9, 2017 · 0410e78 · 0410e78
1 parent 084a547
commit 0410e78
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Showing 3 changed files with 12 additions and 4 deletions.
diff --git a/engines/filecreate.c b/engines/filecreate.c
@@ -14,7 +14,7 @@
 
 static int open_file(struct thread_data *td, struct fio_file *f)
 {
-	struct timespec start, end;
+	struct timespec start;
 	int do_lat = !td->o.disable_lat;
 
 	dprint(FD_FILE, "fd open %s\n", f->file_name);
@@ -43,10 +43,9 @@ static int open_file(struct thread_data *td, struct fio_file *f)
 	}
 
 	if (do_lat) {
-		unsigned long long nsec;
+		uint64_t nsec;
 
-		fio_gettime(&end, NULL);
-		nsec = ntime_since(&start, &end);
+		nsec = ntime_since_now(&start);
 		add_lat_sample(td, DDIR_WRITE, nsec, 0, 0);
 	}
 

diff --git a/fio_time.h b/fio_time.h
@@ -5,6 +5,7 @@
 
 struct thread_data;
 extern uint64_t ntime_since(const struct timespec *, const struct timespec *);
+extern uint64_t ntime_since_now(const struct timespec *);
 extern uint64_t utime_since(const struct timespec *, const struct timespec *);
 extern uint64_t utime_since_now(const struct timespec *);
 extern uint64_t mtime_since(const struct timespec *, const struct timespec *);

diff --git a/gettime.c b/gettime.c
@@ -448,6 +448,14 @@ uint64_t ntime_since(const struct timespec *s, const struct timespec *e)
        return nsec + (sec * 1000000000LL);
 }
 
+uint64_t ntime_since_now(const struct timespec *s)
+{
+	struct timespec now;
+
+	fio_gettime(&now, NULL);
+	return ntime_since(s, &now);
+}
+
 uint64_t utime_since(const struct timespec *s, const struct timespec *e)
 {
 	int64_t sec, usec;