Many TestWTF.WTF_Condition tests seems flaky. They seems to fail randomly. For e.g.: In https://ews-build.webkit-uat.org/#/builders/19/builds/1323 these tests failed in run-api-test and re-run-api-tests steps, however the patch has nothing to do with WTF. TestWTF.WTF_Condition.TenProducersOneConsumerOneSlot TestWTF.WTF_Condition.TenProducersOneConsumerHundredSlotsNotifyOne TestWTF.WTF_Condition.TenProducersTenConsumersOneSlot TestWTF.WTF_Condition.OneProducerTenConsumersHundredSlotsNotifyOne Similar thing happened in: https://ews-build.webkit-uat.org/#/builders/19/builds/1299 https://ews-build.webkit-uat.org/#/builders/19/builds/1291 https://ews-build.webkit-uat.org/#/builders/19/builds/1267 https://ews-build.webkit-uat.org/#/builders/19/builds/1249 https://ews-build.webkit-uat.org/#/builders/19/builds/1236 https://ews-build.webkit-uat.org/#/builders/20/builds/1046 https://ews-build.webkit-uat.org/#/builders/20/builds/1001
Observation: all the above examples happened on ews153. Seems like this bot consistently reproduce this issue.
<rdar://problem/50510046>
Haven't noticed this flakiness for a while. It's possible that there was some issue with ews153 making it very slow and causing test to time out.