On 18 Aug 2010, at 01:26, Shawn Erickson wrote: > > ... however if your application loads > file data (aka image data in your case) only once or it is unlikely > your application will load the same file data again in the reasonable > near future then you should look at disabling file caching of the file > data you load. > > Review... > > http://developer.apple.com/mac/library/documentation/Performance/Conceptual/FileSystem/Articles/FilePerformance.html#//apple_ref/doc/uid/20001987-99732 > > I don't think "kCGImageSourceShouldCache" affects caching at the file > system cache level, it only enables/disables cacheing of decoded image > data (aka raw pixels instead of source jpeg data). To avoid file > caching you may have to load file data in a different way...
Yes, it did occur to me that I was locking the stable door after the horse had bolted. Thanks for the pointer - I think disabling file caching might be an approach worth pursuing (although the man page for fctrl isn't yet making much sense to me). > I would consider asking this question on the quartz developer list. Will do, but I think I'll play with Instruments and file caching first. Stuart _______________________________________________ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
