Re: Xcode performance issues over time
Re: Xcode performance issues over time
- Subject: Re: Xcode performance issues over time
- From: Brian Zwahr <email@hidden>
- Date: Tue, 16 Feb 2010 10:01:35 -0600
Keep in mind that the original slowdown I was experience had nothing to do with searching, everything to do with using the editor, and only took an hour or two for me XCode to become frustratingly slow, even when just moving the cursor around a source code file. So far, the only solutions I've found are to restart XCode (which is an atrocious solution) or use an external editor. Mind you, I don't mind this so much since I use emacs and enjoy it thoroughly. My only real complaint is that I want XCode's intellisense which requires using the built-in editor which is what causes my slowdown.
Brian
On Feb 15, 2010, at 8:29 PM, Jens Alfke wrote:
>
> On Feb 15, 2010, at 4:05 PM, Jerry Krinock wrote:
>
>> 1. Use Xcode 3.2.1 on a project for several days, sleeping Mac at night.
>> 2. Do a Search In Project. Time: 16 seconds. ...
>> 6. Quit Xcode
>> 7. Relaunch Xcode
>> 8. Reopen sam project.
>> 9. Do same search: 8 seconds.
>
> Use a profiling tool like sample or Shark to capture what Xcode's doing during both the slow and the fast search, then compare the results. Either the stack traces will be really different, with extra stuff going on in the slow search (maybe GC); or maybe the stacks will be fairly similar but for some reason some of the leaf calls, like file I/O, will be a lot slower. In the latter case the fs_usage tool could be useful to capture all the file operations and their timing. (There's also that newfangled stuff like Instruments that those darn kids are all hep on these days.)
>
> Whatever you find, wrap it all up in a bug report to post to Apple.
>
> —Jens _______________________________________________
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