diff --git a/.vim/snippets/c.snippets b/.vim/snippets/c.snippets
index 89b81ba..258f69b 100644
--- a/.vim/snippets/c.snippets
+++ b/.vim/snippets/c.snippets
@@ -108,3 +108,12 @@ snippet .
 	[${1}]${2}
 snippet un
 	unsigned
+snippet time_me
+	{
+		struct timeval prev_tv, cur_tv, diff_tv;
+		gettimeofday(&prev_tv, NULL);
+		${1:function();}
+		gettimeofday(&cur_tv, NULL);
+		timersub(&cur_tv, &prev_tv, &diff_tv);
+		printf("${2:function} take %d us \n", diff_tv.tv_usec);
+	}