[Webkit-unassigned] [Bug 186443] Test262-Runner: Improve files queue to optimize CPU usage/balancing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=186443

Filip Pizlo <fpizlo at apple.com> changed:

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--- Comment #3 from Filip Pizlo <fpizlo at apple.com> ---
Comment on attachment 342324
  --> https://bugs.webkit.org/attachment.cgi?id=342324
Patch

Why is it necessary to only do for Kim when the number of files is large?

Why is there chunking?

Would it be possible to start nproc = ncpu + 1, and then have a balancer in proc0 that, if asked to do so via a request on a pipe, will bend a test index. All other processes ask proc0 for a test after each test they run. Running a test requires starting a VM, right? So that’s way more expensive than a packet of data on a pipe (or socketpair). 

That’s what I meant by load balancer. I’m not sure exactly what this patch achieves - perhaps an improvement in some specific case of load balancing. Maybe you could quote the speedup in the changelog?

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