[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

--- Comment #5 from Filip Pizlo <fpizlo at apple.com> ---
(In reply to Filip Pizlo from comment #3)
> Comment on attachment 342324 [details]
> 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

Vend 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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