On Feb 17, 2013, at 11:50 AM, Matt Neuburg wrote: > On Sat, 12 Jan 2013 11:13:13 +0000, Mike Abdullah <cocoa...@mikeabdullah.net> > said: >> >> The allocations instrument can show you all presently allocated objects. >> Find the object(s) you're interested in from that list and you can view its >> history of being retained and (auto)released, to figure out what is still >> holding onto it. > > Actually, Instruments is no help in figuring out "what is still holding onto > it". That's not entirely unreasonable, since in a very real sense *no* object > is "holding onto" anything; there are only messages and the object's own > internal retain count.
Well, you can't figure out what object is holding onto another object, but you can figure out which _body of code_ is holding onto an object. > But it sure would be nice if Instruments did give more info about this, so > that one could try to track down which retains are balanced by which releases > (and which retains, therefore, are unbalanced). Well, Instruments can no more divine which release balances which retain as it can know what object might "hold" what other object. > A mere retain count over time, along with a call stack, just doesn't quite > cut it somehow. Well, you have to analyze the retain/release history yourself, but all of the necessary information is there. What I would appreciate is a GUI to assist the developer in keeping track of what his analysis determines. For example, dragging releases in the history onto retains in the history to match them up, visually showing both that those retains and releases are presumed to be balanced and, when requested, showing the link between them. For example, balanced retains and releases could be dimmed or struck through. Eventually, only the unbalanced retains would stand out. Regards, Ken _______________________________________________ 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
