.

t_sysmmap_c.c

@@ -55,13 +55,16 @@ int main() {
 		perror("fallocate");
 		abort();
 	}
-	printf("T(fallocate): %.1f\n", Tend - Tstart);	// XXX print per page?
+	printf("T(fallocate):\t%.1f\t%6.1f ns / page\n", Tend - Tstart, (Tend - Tstart) * 1E9 / NITER);
 
+	Tstart = microtime();
 	addr = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
 	if (addr == MAP_FAILED) {
 		perror("mmap");
 		abort();
 	}
+	Tend = microtime();
+	printf("T(mmap):\t%.1f\t%6.1f ns / page\n", Tend - Tstart, (Tend - Tstart) * 1E9 / NITER);
 
 	Tstart = microtime();
 	for (i=0; i<NITER; i++) {
@@ -69,7 +72,7 @@ int main() {
 	}
 	Tend = microtime();
 
-	printf("T(pagefault): %.1f ns\t(%i)\n", (Tend - Tstart) * 1E9 / NITER, sum);
+	printf("T(pagefault):\t%.1f\t%6.1f ns / page\t(%i)\n", Tend - Tstart, (Tend - Tstart) * 1E9 / NITER, sum);
 
 	return 0;
 }