> +
> +static int mmc_test_rnd_perf(struct mmc_test_card *test, int write, int
print,
> + unsigned long sz)
> +{
> + unsigned int dev_addr, cnt, rnd_addr, range1, range2, last_ea = 0,
ea;
> + unsigned int ssz;
> + struct timespec ts1, ts2, ts;
> + int ret;
> +
Tabify all you declarations here.
> + ssz = sz >> 9;
> +
> + rnd_addr = mmc_test_capacity(test->card) / 4;
> + range1 = rnd_addr / test->card->pref_erase;
> + range2 = range1 / ssz;
> +
> + getnstimeofday(&ts1);
> + for (cnt = 0; cnt < UINT_MAX; cnt++) {
> + getnstimeofday(&ts2);
> + ts = timespec_sub(ts2, ts1);
> + if (ts.tv_sec >= 10)
> + break;
> + ea = mmc_test_rnd_num(range1);
> + if (ea == last_ea)
> + ea -= 1;
> + last_ea = ea;
> + dev_addr = rnd_addr + test->card->pref_erase * ea +
> + ssz * mmc_test_rnd_num(range2);
> + ret = mmc_test_area_io(test, sz, dev_addr, write, 0, 0);
> + if (ret)
> + return ret;
> + }
> + if (print)
> + mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
> + return 0;
> +}
> +
> +static int mmc_test_random_perf(struct mmc_test_card *test, int write)
> +{
> + unsigned int next;
> + unsigned long sz;
> + int ret;
> +
> + for (sz = 512; sz < test->area.max_tfr; sz <<= 1) {
> + /*
> + * When writing, try to get more consistent results by
running
> + * the test twice with exactly the same I/O but outputting
the
> + * results only for the 2nd run.
> + */
> + if (write) {
> + next = rnd_next;
> + ret = mmc_test_rnd_perf(test, write, 0, sz);
> + if (ret)
> + return ret;
> + rnd_next = next;
> + }
> + ret = mmc_test_rnd_perf(test, write, 1, sz);
> + if (ret)
> + return ret;
> + }
> + sz = test->area.max_tfr;
> + if (write) {
> + next = rnd_next;
> + ret = mmc_test_rnd_perf(test, write, 0, sz);
> + if (ret)
> + return ret;
> + rnd_next = next;
> + }
> + return mmc_test_rnd_perf(test, write, 1, sz);
> +}
> +
> +/*
> + * Random read performance by transfer size.
> + */
> +static int mmc_test_random_read_perf(struct mmc_test_card *test)
> +{
> + return mmc_test_random_perf(test, 0);
> +}
> +
> +/*
> + * Random write performance by transfer size.
> + */
> +static int mmc_test_random_write_perf(struct mmc_test_card *test)
> +{
> + return mmc_test_random_perf(test, 1);
> +}
> +
> static const struct mmc_test_case mmc_test_cases[] = {
> {
> .name = "Basic write (no data verification)",
> @@ -2007,6 +2110,20 @@ static const struct mmc_test_case
mmc_test_cases[] = {
> .cleanup = mmc_test_area_cleanup,
> },
>
> + {
> + .name = "Random read performance by transfer size",
> + .prepare = mmc_test_area_prepare,
> + .run = mmc_test_random_read_perf,
> + .cleanup = mmc_test_area_cleanup,
> + },
> +
> + {
> + .name = "Random write performance by transfer size",
> + .prepare = mmc_test_area_prepare,
> + .run = mmc_test_random_write_perf,
> + .cleanup = mmc_test_area_cleanup,
> + },
> +
> };
>
> static DEFINE_MUTEX(mmc_test_lock);
> @@ -2150,11 +2267,11 @@ static int mtf_test_show(struct seq_file *sf,
void *data)
> seq_printf(sf, "Test %d: %d\n", gr->testcase + 1,
gr->result);
>
> list_for_each_entry(tr, &gr->tr_lst, link) {
> - seq_printf(sf, "%u %d %lu.%09lu %u\n",
> + seq_printf(sf, "%u %d %lu.%09lu %u %u.%02u\n",
> tr->count, tr->sectors,
> (unsigned long)tr->ts.tv_sec,
> (unsigned long)tr->ts.tv_nsec,
> - tr->rate);
> + tr->rate, tr->iops / 100, tr->iops % 100);
> }
> }
>
> --
> 1.7.0.4
>
> --
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