> On Oct 7, 2016, at 10:05 AM, Quincey Morris > <quinceymor...@rivergatesoftware.com> wrote: > > Surely “anyone reading the code” is going to recognize “dispatch_semaphore” > as something to do with a semaphore, including people from other platforms?
You’re right; I was [mis]remembering a classic semaphore as being a simple mutex lock, but a look at Wikipedia corrected me: it has the counting semantics that dispatch_semaphore does. I still say it’s massive overkill to use it in a simple atomic increment task, as Gerriet’s performance figures show. You might still say that 80x faster isn’t important, but that depends on what you’re doing. I often work on highly performance-sensitive code, as Gerriet also does apparently. —Jens _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
