better formatting

1 files changed, 3 insertions, 2 deletions

diff --git a/open_issues/performance/io_system/test-lseek.c b/open_issues/performance/io_system/test-lseek.c
index 691e9d07..667dce66 100644
--- a/open_issues/performance/io_system/test-lseek.c
+++ b/open_issues/performance/io_system/test-lseek.c
@@ -3,14 +3,15 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/time.h>
+#define N 100000
 int main(void) {
 	int fd = open("test.c", O_RDONLY);
 	struct timeval tv1, tv2;
 	int i;
 	gettimeofday(&tv1, NULL);
-	for (i = 0; i < 100000; i++)
+	for (i = 0; i < N; i++)
 		lseek(fd, 0, SEEK_CUR);
 	gettimeofday(&tv2, NULL);
-	printf("%07lu\n", (tv2.tv_sec-tv1.tv_sec) * 1000000 + tv2.tv_usec - tv1.tv_usec);
+	printf("%fµs\n", (float)((tv2.tv_sec-tv1.tv_sec) * 1000000 + tv2.tv_usec - tv1.tv_usec)/N);
 	return 0;
 }