[Webkit-unassigned] [Bug 191160] Don’t use the main queue to create an XPC connection

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191160

--- Comment #24 from Suresh Koppisetty <skoppisetty at apple.com> ---
(In reply to Saam Barati from comment #23)
> Comment on attachment 354003 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=354003&action=review
> 
> > Source/WebKit/ChangeLog:11
> > +        bootstrap message (sent to launchd for launching a new target process) when the main queue is busy.
> 
> Did this speed up process launch time?

Yes. Here are the numbers.

Total Process Launch time changed from  330.49 ms to 271.58 ms
Process Launch time changed from 131.45 ms to 65.04 ms

Looks like a ~18% gain in the total process launch time (includes initialization of web process) and about ~50% in process launch time.

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