mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-04 05:36:43 +07:00
mmc: mmc_test: add tests to measure random I/O operations per second
Existing performance tests measure single or sequential I/O speed.
Add two random I/O tests:
33. Random read performance by transfer size
34. Random write performance by transfer size
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Adrian Hunter
Chris Ball
parent
0532ff6358
commit
b6056d1234
@ -88,6 +88,7 @@ struct mmc_test_area {
|
||||
* @sectors: amount of sectors to check in one group
|
||||
* @ts: time values of transfer
|
||||
* @rate: calculated transfer rate
|
||||
* @iops: I/O operations per second (times 100)
|
||||
*/
|
||||
struct mmc_test_transfer_result {
|
||||
struct list_head link;
|
||||
@ -95,6 +96,7 @@ struct mmc_test_transfer_result {
|
||||
unsigned int sectors;
|
||||
struct timespec ts;
|
||||
unsigned int rate;
|
||||
unsigned int iops;
|
||||
};
|
||||
|
||||
/**
|
||||
@ -495,7 +497,7 @@ static unsigned int mmc_test_rate(uint64_t bytes, struct timespec *ts)
|
||||
*/
|
||||
static void mmc_test_save_transfer_result(struct mmc_test_card *test,
|
||||
unsigned int count, unsigned int sectors, struct timespec ts,
|
||||
unsigned int rate)
|
||||
unsigned int rate, unsigned int iops)
|
||||
{
|
||||
struct mmc_test_transfer_result *tr;
|
||||
|
||||
@ -510,6 +512,7 @@ static void mmc_test_save_transfer_result(struct mmc_test_card *test,
|
||||
tr->sectors = sectors;
|
||||
tr->ts = ts;
|
||||
tr->rate = rate;
|
||||
tr->iops = iops;
|
||||
|
||||
list_add_tail(&tr->link, &test->gr->tr_lst);
|
||||
}
|
||||
@ -520,20 +523,22 @@ static void mmc_test_save_transfer_result(struct mmc_test_card *test,
|
||||
static void mmc_test_print_rate(struct mmc_test_card *test, uint64_t bytes,
|
||||
struct timespec *ts1, struct timespec *ts2)
|
||||
{
|
||||
unsigned int rate, sectors = bytes >> 9;
|
||||
unsigned int rate, iops, sectors = bytes >> 9;
|
||||
struct timespec ts;
|
||||
|
||||
ts = timespec_sub(*ts2, *ts1);
|
||||
|
||||
rate = mmc_test_rate(bytes, &ts);
|
||||
iops = mmc_test_rate(100, &ts); /* I/O ops per sec x 100 */
|
||||
|
||||
printk(KERN_INFO "%s: Transfer of %u sectors (%u%s KiB) took %lu.%09lu "
|
||||
"seconds (%u kB/s, %u KiB/s)\n",
|
||||
"seconds (%u kB/s, %u KiB/s, %u.%02u IOPS)\n",
|
||||
mmc_hostname(test->card->host), sectors, sectors >> 1,
|
||||
(sectors & 1 ? ".5" : ""), (unsigned long)ts.tv_sec,
|
||||
(unsigned long)ts.tv_nsec, rate / 1000, rate / 1024);
|
||||
(unsigned long)ts.tv_nsec, rate / 1000, rate / 1024,
|
||||
iops / 100, iops % 100);
|
||||
|
||||
mmc_test_save_transfer_result(test, 1, sectors, ts, rate);
|
||||
mmc_test_save_transfer_result(test, 1, sectors, ts, rate, iops);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -543,22 +548,24 @@ static void mmc_test_print_avg_rate(struct mmc_test_card *test, uint64_t bytes,
|
||||
unsigned int count, struct timespec *ts1,
|
||||
struct timespec *ts2)
|
||||
{
|
||||
unsigned int rate, sectors = bytes >> 9;
|
||||
unsigned int rate, iops, sectors = bytes >> 9;
|
||||
uint64_t tot = bytes * count;
|
||||
struct timespec ts;
|
||||
|
||||
ts = timespec_sub(*ts2, *ts1);
|
||||
|
||||
rate = mmc_test_rate(tot, &ts);
|
||||
iops = mmc_test_rate(count * 100, &ts); /* I/O ops per sec x 100 */
|
||||
|
||||
printk(KERN_INFO "%s: Transfer of %u x %u sectors (%u x %u%s KiB) took "
|
||||
"%lu.%09lu seconds (%u kB/s, %u KiB/s)\n",
|
||||
"%lu.%09lu seconds (%u kB/s, %u KiB/s, "
|
||||
"%u.%02u IOPS)\n",
|
||||
mmc_hostname(test->card->host), count, sectors, count,
|
||||
sectors >> 1, (sectors & 1 ? ".5" : ""),
|
||||
(unsigned long)ts.tv_sec, (unsigned long)ts.tv_nsec,
|
||||
rate / 1000, rate / 1024);
|
||||
rate / 1000, rate / 1024, iops / 100, iops % 100);
|
||||
|
||||
mmc_test_save_transfer_result(test, count, sectors, ts, rate);
|
||||
mmc_test_save_transfer_result(test, count, sectors, ts, rate, iops);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -1768,6 +1775,102 @@ static int mmc_test_profile_seq_trim_perf(struct mmc_test_card *test)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static unsigned int rnd_next = 1;
|
||||
|
||||
static unsigned int mmc_test_rnd_num(unsigned int rnd_cnt)
|
||||
{
|
||||
uint64_t r;
|
||||
|
||||
rnd_next = rnd_next * 1103515245 + 12345;
|
||||
r = (rnd_next >> 16) & 0x7fff;
|
||||
return (r * rnd_cnt) >> 15;
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user