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Diffstat (limited to 'Documentation/dev-tools/kselftest.rst')
| -rw-r--r-- | Documentation/dev-tools/kselftest.rst | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst index 12b575b76b20..deede972f254 100644 --- a/Documentation/dev-tools/kselftest.rst +++ b/Documentation/dev-tools/kselftest.rst @@ -36,6 +36,7 @@ Running the selftests (hotplug tests are run in limited mode) To build the tests:: + $ make headers $ make -C tools/testing/selftests To run the tests:: @@ -168,6 +169,28 @@ the `-t` option for specific single tests. Either can be used multiple times:: For other features see the script usage output, seen with the `-h` option. +Timeout for selftests +===================== + +Selftests are designed to be quick and so a default timeout is used of 45 +seconds for each test. Tests can override the default timeout by adding +a settings file in their directory and set a timeout variable there to the +configured a desired upper timeout for the test. Only a few tests override +the timeout with a value higher than 45 seconds, selftests strives to keep +it that way. Timeouts in selftests are not considered fatal because the +system under which a test runs may change and this can also modify the +expected time it takes to run a test. If you have control over the systems +which will run the tests you can configure a test runner on those systems to +use a greater or lower timeout on the command line as with the `-o` or +the `--override-timeout` argument. For example to use 165 seconds instead +one would use: + + $ ./run_kselftest.sh --override-timeout 165 + +You can look at the TAP output to see if you ran into the timeout. Test +runners which know a test must run under a specific time can then optionally +treat these timeouts then as fatal. + Packaging selftests =================== |