diff --git a/runtime/tests/work/main.c b/runtime/tests/work/main.c
index 437e9f7..bf42a16 100644
--- a/runtime/tests/work/main.c
+++ b/runtime/tests/work/main.c
@@ -13,9 +13,9 @@ main(void)
 	char *d = malloc(MAX_BUF + 1);
 	int   r = read(0, d, MAX_BUF);
 
-	//	unsigned long long st = __getcycles(), en = 0;
+	//	unsigned long long st = getcycles(), en = 0;
 	//	wrk();
-	//	en = __getcycles();
+	//	en = getcycles();
 
 	//	if (r <= 0) printf("%llu\n", en > st ? (en - st)/CPU_CYCS : -1);
 	if (r < 0)
diff --git a/runtime/tests/work100k/main.c b/runtime/tests/work100k/main.c
index f2aa26a..dd9cfa7 100644
--- a/runtime/tests/work100k/main.c
+++ b/runtime/tests/work100k/main.c
@@ -11,9 +11,9 @@ main(void)
 	char *d = malloc(MAX_BUF + 1);
 	int   r = read(0, d, MAX_BUF);
 
-	//	unsigned long long st = __getcycles(), en = 0;
+	//	unsigned long long st = getcycles(), en = 0;
 	//	wrk();
-	//	en = __getcycles();
+	//	en = getcycles();
 
 	//	if (r <= 0) printf("%llu\n", en > st ? (en - st)/CPU_CYCS : -1);
 	if (r < 0)
diff --git a/runtime/tests/work10k/main.c b/runtime/tests/work10k/main.c
index b4d2d15..f456ccc 100644
--- a/runtime/tests/work10k/main.c
+++ b/runtime/tests/work10k/main.c
@@ -11,9 +11,9 @@ main(void)
 	char *d = malloc(MAX_BUF + 1);
 	int   r = read(0, d, MAX_BUF);
 
-	//	unsigned long long st = __getcycles(), en = 0;
+	//	unsigned long long st = getcycles(), en = 0;
 	//	wrk();
-	//	en = __getcycles();
+	//	en = getcycles();
 
 	//	if (r <= 0) printf("%llu\n", en > st ? (en - st)/CPU_CYCS : -1);
 	if (r < 0)
diff --git a/runtime/tests/work1k/main.c b/runtime/tests/work1k/main.c
index aa6fb7f..1c76d4d 100644
--- a/runtime/tests/work1k/main.c
+++ b/runtime/tests/work1k/main.c
@@ -11,9 +11,9 @@ main(void)
 	char *d = malloc(MAX_BUF + 1);
 	int   r = read(0, d, MAX_BUF);
 
-	//	unsigned long long st = __getcycles(), en = 0;
+	//	unsigned long long st = getcycles(), en = 0;
 	//	wrk();
-	//	en = __getcycles();
+	//	en = getcycles();
 
 	//	if (r <= 0) printf("%llu\n", en > st ? (en - st)/CPU_CYCS : -1);
 	if (r < 0)
diff --git a/runtime/tests/work1m/main.c b/runtime/tests/work1m/main.c
index 39ba644..0c40471 100644
--- a/runtime/tests/work1m/main.c
+++ b/runtime/tests/work1m/main.c
@@ -11,9 +11,9 @@ main(void)
 	char *d = malloc(MAX_BUF + 1);
 	int   r = read(0, d, MAX_BUF);
 
-	//	unsigned long long st = __getcycles(), en = 0;
+	//	unsigned long long st = getcycles(), en = 0;
 	//	wrk();
-	//	en = __getcycles();
+	//	en = getcycles();
 
 	//	if (r <= 0) printf("%llu\n", en > st ? (en - st)/CPU_CYCS : -1);
 	if (r < 0)