blktests: add a test for wbt There's currently no tests to verify wbt is working properly, this patch fixes that. Simply run a varied workload and measure the read latencies with wbt off, and then turn it on and verify that the read latencies go down. Signed-off-by: Josef Bacik <[email protected]>
blktests is a test framework for the Linux kernel block layer and storage stack. It is inspired by the xfstests filesystem testing framework.
The dependencies are minimal, but make sure you have them installed:
Some tests require the following:
Build blktests with make. Optionally, install it to a known location with make install (/usr/local/blktests by default, but this can be changed by passing DESTDIR and/or prefix).
Add the list of block devices you want to test on in a file named config:
TEST_DEVS=(/dev/nvme0n1 /dev/sdb)
And as root, run the default set of tests with ./check.
Note that these tests are destructive, so don't add anything to the TEST_DEVS array containing data that you want to keep.
See here for more detailed information on configuration and running tests.
The ./new script creates a new test from a template. The generated template contains more detailed documentation.
Pull requests on GitHub and patches to [email protected] are both accepted. See here for more information on contributing.