X-Git-Url: http://git.itanic.dy.fi/?p=membench;a=blobdiff_plain;f=membench.c;fp=membench.c;h=6167b6cb639928bee8a42746997e4b9f35ff2c53;hp=e99e6ea047ff2b0512e73b8497b5184d6427b4f5;hb=c0f6ff51ae3dbeae5ba4ee0fea0b2c151759f02a;hpb=7a82a5bfb95c27a658e1ee3ed3b893aa46a25e0b

diff --git a/membench.c b/membench.c
index e99e6ea..6167b6c 100644
--- a/membench.c
+++ b/membench.c
@@ -15,7 +15,7 @@ long long usec_diff(const struct timeval *a, const struct timeval *b)
 int main(int argc, char *argv[])
 {
 	int iterations, j, k, count, size, mask, latcount;
-	unsigned long *buf, i, tmp = 0;
+	unsigned long *buf, i, tmp[8] = {0};
 	struct timeval start, end;
 
 	printf("Benchmark sequential access bandwidth "
@@ -85,9 +85,17 @@ int main(int argc, char *argv[])
 
 		gettimeofday(&start, 0);
 		for (k = 0; k < count; k++) {
-			buf[0] = tmp;
-			for (i = 0; i < size; i++)
-				tmp += buf[i];
+			buf[0] = tmp[0];
+			for (i = 0; i < size; i += 8) {
+				tmp[0] += buf[i];
+				tmp[1] += buf[i+1];
+				tmp[2] += buf[i+2];
+				tmp[3] += buf[i+3];
+				tmp[4] += buf[i+4];
+				tmp[5] += buf[i+5];
+				tmp[6] += buf[i+6];
+				tmp[7] += buf[i+7];
+			}
 		}
 
 		gettimeofday(&end, 0);
@@ -102,9 +110,9 @@ int main(int argc, char *argv[])
 
 		gettimeofday(&start, 0);
 		for (k = 0; k < latcount; k++) {
-			buf[0] = tmp;
+			buf[0] = tmp[0];
 			for (i = 0; i < size; i++)
-				tmp += buf[random() & mask];
+				tmp[0] += buf[random() & mask];
 		}
 
 		gettimeofday(&end, 0);
@@ -119,8 +127,16 @@ int main(int argc, char *argv[])
 
 		gettimeofday(&start, 0);
 		for (k = 0; k < count; k++)
-			for (i = 0; i < size; i++)
-				 buf[i] = i;
+			for (i = 0; i < size; i += 8) {
+				buf[i  ] = tmp[0];
+				buf[i+1] = tmp[1];
+				buf[i+2] = tmp[2];
+				buf[i+3] = tmp[3];
+				buf[i+4] = tmp[4];
+				buf[i+5] = tmp[5];
+				buf[i+6] = tmp[6];
+				buf[i+7] = tmp[7];
+			}
 		gettimeofday(&end, 0);
 
 		printf("% 9.2f  ", (double)(size * lsize) *