[LTP] [PATCH] fs/fsx-linux/fsx-linux.c: Add measurement of execution time

[Xin Wang]

fsx-linux.c is usually used for file system regression testing and total execution time also more and more receives attention.
Add measurement of execution time in fsx-linux.c:
[fsx-linux]$ PATH=$PATH:$PWD ./fsx-linux -N 20000 /tmp/test/test.ini

All operations completed A-OK!
Elapsed Test Time 0.388891

Signed-off-by: Xin.Wang@windriver.com
---
 testcases/kernel/fs/fsx-linux/fsx-linux.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/fs/fsx-linux/fsx-linux.c b/testcases/kernel/fs/fsx-linux/fsx-linux.c
index 64c27a0f5..71b719782 100644
--- a/testcases/kernel/fs/fsx-linux/fsx-linux.c
+++ b/testcases/kernel/fs/fsx-linux/fsx-linux.c
@@ -1115,7 +1115,8 @@ int main(int argc, char **argv)
 	int i, style, ch;
 	char *endp;
 	int dirpath = 0;
-
+	struct timeval time_start, time_end, time_diff;
+	
 	goodfile[0] = 0;
 	logfile[0] = 0;
 
@@ -1336,12 +1337,24 @@ int main(int argc, char **argv)
 	} else
 		check_trunc_hack();
 
+	gettimeofday(&time_start, NULL);
 	while (numops == -1 || numops--)
 		test();
 
 	close_test_files();
+	gettimeofday(&time_end, NULL);
+
 	prt("All operations completed A-OK!\n");
 
+	time_diff.tv_sec = time_end.tv_sec - time_start.tv_sec;
+	time_diff.tv_usec = time_end.tv_usec - time_start.tv_usec;
+	if (time_diff.tv_usec < 0) {
+		time_diff.tv_usec += 1000000;
+		time_diff.tv_sec -= 1; 
+	}
+	prt("Elapsed Test Time %lu.%06lu\n",
+        (unsigned long)time_diff.tv_sec, time_diff.tv_usec);
+	
 	if (tf_buf)
 		free(tf_buf);
 
-- 
2.34.1