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Re: Shark takes forever the first time after launching it

Subject: Re: Shark takes forever the first time after launching it
From: Rick Altherr <email@hidden>
Date: Mon, 24 Jul 2006 10:58:47 -0700
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I would guess that you have symbols for some of the applications that are running and that they have _lots_ of symbols. When Shark is processing samples, it is spending most of its time trying to find symbols and source information for program addresses that it saw executing during sampling. Internally, Shark caches these entries so that it only needs to be looked up once per launch unless the program changes. So, the first time you sample, the processing will need to collect the symbols for all of the programs that Shark saw executing during the sample, but subsequent sessions will frequently hit in the cache. -- Rick Altherr Architecture and Performance Group email@hidden


On Jul 24, 2006, at 10:03 AM, Stefan Haller wrote:

When I launch Shark and try to sample my application (no matter for how long), it takes like 10 minutes until Shark opens the results window. It displays the spinning progress bar, saying "Processing Samples" all the time.
After that, I can sample like I'm used to while Shark is running (it
takes a couple of seconds, at most); if I quit Shark and launch it
again, it takes 10 minutes again.
I'm on a MacBook Pro, but a collegue also has this behaviour on a G4; on a quad G5 it works fine though.
System version is 10.4.7, Xcode 2.3, Chud 4.3.3 (4).
Any ideas?
-- Stefan Haller Ableton http://www.ableton.com/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Xcode-users mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/xcode-users/raltherr% 40apple.com

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