[Webkit-unassigned] [Bug 192943] Moving non-critical initializations to a parallel thread can speed up process launch time by 15%.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=192943

--- Comment #9 from Suresh Koppisetty <skoppisetty at apple.com> ---
Comment on attachment 357860
  --> https://bugs.webkit.org/attachment.cgi?id=357860
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=357860&action=review

>> Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm:368
>> +    m_internalQueue = dispatch_queue_create([NSString stringWithFormat:@"com.apple.WebKit.WebProcessCocoa"].UTF8String, DISPATCH_QUEUE_SERIAL);
> 
> I believe you should adoptOSObject(), otherwise you increment the ref count again and this leaks.
> 
> Why aren't we setting a BACKGROUND QoS class like my code was doing?
> 
> dispatch_queue_attr_t attr = DISPATCH_QUEUE_SERIAL;
> attr = dispatch_queue_attr_make_with_qos_class(attr, QOS_CLASS_BACKGROUND, 0);
> m_internalQueue = dispatch_queue_create("com.apple.WebKit.WebProcessCocoa", attr);
> 
> Note that if you used WTF::WorkQueue, you'd simply pass the QoS when constructing it.
> 
> I also do not understand the purpose of [NSString stringWithFormat] in your code, you're not formatting anything and you do not need a NSString*.

My bad. I don't need [NSString stringWithFormat]. 

I was only trying to get all of them in a single queue till now. I still haven't yet tried out by changing QOS classes. Getting a root to verify this.

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