diff options
Diffstat (limited to 'mbw.c')
| -rw-r--r-- | mbw.c | 13 |
1 files changed, 10 insertions, 3 deletions
@@ -35,7 +35,7 @@ * MBW memory bandwidth benchmark * * 2006, 2012 Andras.Horvath@gmail.com - * 2013 j.m.slocum@gmail.com + * 2013 j.m.slocum@gmail.com * (Special thanks to Stephen Pasich) * * http://github.com/raas/mbw @@ -57,7 +57,7 @@ void usage() printf("mbw memory benchmark v%s, https://github.com/raas/mbw\n", VERSION); printf("Usage: mbw [options] array_size_in_MiB\n"); printf("Options:\n"); - printf(" -n: number of runs per test\n"); + printf(" -n: number of runs per test (0 to run forever)\n"); printf(" -a: Don't display average\n"); printf(" -t%d: memcpy test\n", TEST_MEMCPY); printf(" -t%d: dumb (b[i]=a[i] style) test\n", TEST_DUMB); @@ -238,6 +238,11 @@ int main(int argc, char **argv) tests[2]=1; } + if( nr_loops==0 && ((tests[0]+tests[1]+tests[2]) != 1) ) { + printf("Error: nr_loops can be zero if only one test selected!\n"); + exit(1); + } + if(optind<argc) { mt=strtoul(argv[optind++], (char **)NULL, 10); } else { @@ -280,7 +285,9 @@ int main(int argc, char **argv) for(testno=0; testno<MAX_TESTS; testno++) { te_sum=0; if(tests[testno]) { - for (i=0; i<nr_loops; i++) { + for (i = (!nr_loops) ? -1 :0 ; + i<nr_loops; + i = (!nr_loops) ? i : i+1) { te=worker(asize, a, b, testno, block_size); te_sum+=te; printf("%d\t", i); |