[Webkit-unassigned] [Bug 246472] [GTK] Flaky timeouts in some WTF API tests

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=246472

Carlos Alberto Lopez Perez <clopez at igalia.com> changed:

           What    |Removed                     |Added
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                 CC|                            |clopez at igalia.com

--- Comment #3 from Carlos Alberto Lopez Perez <clopez at igalia.com> ---
I have updated a bunch of expectations here from "gtk" to "all" as several of this failures were happening also on the EWS for WPE API tests and also added two new expected timeouts on 270468 at main


This API tests (TestWTF) are kind of core, so I would expect that any issue that happens on GTK will happen also on WPE and viceversa. maybe we should use "all" for every expectation on this sub-tests. Just a thought.

A bit more info: I suspect some of the timeouts are simply slow tests.

For example the test WTF_Lock.ManyContendedLongSections takes 5 seconds to run on a Ryzen 9 5950X 16-Core with Kernel 6.0 but it runs on just 1 second on a i7-3770 4-core with Kernel 5.10

Looking at the strace you can see that the time is all spent on doing futex syscall. I suspect the difference on performance maybe has to be with this syscalls that for a reason that I don't know are faster on one machine than the other. It can be also related to the kernel version.

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