>> I recently found a test that was TIMEOUT in TestExpectations, and still
timed out in Slow, so I left it in TestExpectations under the assumption
that it will timeout faster there.
What do you mean "timed out in Slow"? A test did not mark as slow, but
timeout after 60 seconds? Worth mentioning some slow wpt tests are given
the same timeout value as slow tests in the code.

But I did see some tests timed out at some abnormal value. For example
tests below timeouts at 22 second. Not sure how this could happen.
19:13:50.493 20120 [3522/4178]
external/wpt/webrtc-identity/idlharness.https.window.html
failed unexpectedly (test timed out) 22.3300s

On Wed, Aug 18, 2021 at 11:26 AM Stephen Chenney <[email protected]>
wrote:

>
>
> On Wed, Aug 18, 2021 at 12:01 PM 'Weizhong Xia' via blink-dev <
> [email protected]> wrote:
>
>> Dear blink-devs,
>>
>> As another effort trying to speed up blink_web_tests on CQ, We are
>> looking at slow tests that also timeouts. From the timing stats(example
>> <https://test-results.appspot.com/data/layout_results/linux-rel/773524/blink_web_tests%20%28with%20patch%29/layout-test-results/results.html>)
>> and some research, there are about 0.25% such tests, but running such tests
>> takes about 4% of the total run time. So we are thinking of
>> doing something about it.
>>
>> We would like to propose as below, and get feedback on this:
>> 1. We add Skip to test expectations for slow tests that also timeouts.
>> This will effectively skip all such tests on swarming bots, and save ~50s
>> real time on linux-rel.
>> 2. We add a presubmit check to make any unskipped Slow+Timeout an error.
>> (We can also make this a warning, but such warning will persist, so kind of
>> annoying)
>> 3. Devs are encouraged to take actions to either fix the timeout, or
>> break the slow tests into pieces to make it not slow.
>>
>>
> I recently found a test that was TIMEOUT in TestExpectations, and still
> timed out in Slow, so I left it in TestExpectations under the assumption
> that it will timeout faster there.
>
> The underlying issue is not a slow test but a test that hangs and we may
> or may not want to skip such a test. Would identifying these cases and
> moving them from Slow to TestExpectations have any noticeable impact?
>
>
>> Please let us know your opinions on this.
>>
>> Thanks, Weizhong
>>
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>>
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