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test/py: mmc: Add 'mmc read' performance check

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Add option to the mmc rd test to check the duration of the
execution of the mmc read command. This allows intercepting
read performance regressions.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Marek Vasut 2019-03-13 17:49:29 +01:00 committed by Tom Rini
parent 4ffec8cdf5
commit e551979790
1 changed files with 11 additions and 0 deletions
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11
test/py/tests/test_mmc_rd.py
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@ -6,6 +6,7 @@
# read if the test configuration contains a CRC of the expected data.
import pytest
import time
import u_boot_utils
"""
@ -187,6 +188,7 @@ def test_mmc_rd(u_boot_console, env__mmc_rd_config):
sector = env__mmc_rd_config.get('sector', 0)
count_sectors = env__mmc_rd_config.get('count', 1)
expected_crc32 = env__mmc_rd_config.get('crc32', None)
read_duration_max = env__mmc_rd_config.get('read_duration_max', 0)
count_bytes = count_sectors * 512
bcfg = u_boot_console.config.buildconfig
@ -213,7 +215,9 @@ def test_mmc_rd(u_boot_console, env__mmc_rd_config):
# Read data
cmd = 'mmc read %s %x %x' % (addr, sector, count_sectors)
tstart = time.time()
response = u_boot_console.run_command(cmd)
tend = time.time()
good_response = 'MMC read: dev # %d, block # %d, count %d ... %d blocks read: OK' % (
devid, sector, count_sectors, count_sectors)
assert good_response in response
@ -226,3 +230,10 @@ def test_mmc_rd(u_boot_console, env__mmc_rd_config):
assert expected_crc32 in response
else:
u_boot_console.log.warning('CONFIG_CMD_CRC32 != y: Skipping check')
# Check if the command did not take too long
if read_duration_max:
elapsed = tend - tstart
u_boot_console.log.info('Reading %d bytes took %f seconds' %
(count_bytes, elapsed))
assert elapsed <= (read_duration_max - 0.01)