Re: GCD killed my performance
Re: GCD killed my performance
- Subject: Re: GCD killed my performance
- From: Jens Alfke <email@hidden>
- Date: Thu, 24 Apr 2014 21:35:26 -0700
On Apr 24, 2014, at 9:04 PM, Dave Fernandes <email@hidden> wrote:
> What’s the CPU utilization? Are you actually getting full use of them, or are your threads blocked waiting for something?
Fairly high — I think 175% or so (out of 200% possible). The problem is that a large fraction of that is taken up with busywork. In the CPU profile list from Instruments, the top 25 or so stack frames are all system infrastructure; you have to read down quite a ways to find any application code at all.
—Jens
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden