diff options
Diffstat (limited to 'test/lowlevel-blt-bench.c')
| -rw-r--r-- | test/lowlevel-blt-bench.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/test/lowlevel-blt-bench.c b/test/lowlevel-blt-bench.c index 17e5ec4..fc7472f 100644 --- a/test/lowlevel-blt-bench.c +++ b/test/lowlevel-blt-bench.c @@ -55,7 +55,7 @@ uint32_t *dst; uint32_t *src; uint32_t *mask; -double bandwidth = 0; +double bandwidth = 0.0; double bench_memcpy () @@ -1086,10 +1086,11 @@ print_speed_scaling (double bw) static void usage (const char *progname) { - printf ("Usage: %s [-b] [-n] [-c] pattern\n", progname); + printf ("Usage: %s [-b] [-n] [-c] [-m M] pattern\n", progname); printf (" -n : benchmark nearest scaling\n"); printf (" -b : benchmark bilinear scaling\n"); printf (" -c : print output as CSV data\n"); + printf (" -m M : set reference memcpy speed to M MB/s instead of measuring it\n"); } int @@ -1115,6 +1116,9 @@ main (int argc, char *argv[]) if (strchr (argv[i] + 1, 'c')) use_csv_output = TRUE; + + if (strcmp (argv[i], "-m") == 0 && i + 1 < argc) + bandwidth = atof (argv[++i]) * 1e6; } else { @@ -1138,7 +1142,8 @@ main (int argc, char *argv[]) if (!use_csv_output) print_explanation (); - bandwidth = bench_memcpy (); + if (bandwidth < 1.0) + bandwidth = bench_memcpy (); if (!use_csv_output) print_speed_scaling (bandwidth); |