Re: Disk thrashing when opening a project
Re: Disk thrashing when opening a project
- Subject: Re: Disk thrashing when opening a project
- From: "Shawn Erickson" <email@hidden>
- Date: Tue, 11 Nov 2008 08:06:18 -0800
On Tue, Nov 11, 2008 at 7:53 AM, Simon Wilson <email@hidden> wrote:
> I'm simply asking the Xcode devs on this list if they can give me a pointer
> to which background tasks/threads are spawned by Xcode when a project is
> opened and if it is possible for the user to disable it.
Use something like sample or fs_usage, etc. to help us on the list
(and Apple) to understand what Xcode is doing during the time you are
wondering about.
Personally I don't see anything near the delays you imply when I open
the projects I have except when I have perforce integration enabled or
have pushed the system heavily enough to swap.
Note 40MB free implies most of your RAM is being used (which is a good
thing, no reason to leave it sitting empty) ...so you may want to
double check swap in/out count numbers just in case you are causing
some type of pressure that is causing swapping. Note inactive memory
is still used memory, it just hasn't been accessed recently (some
aspect of the system or an application has access to the data in that
page). IIRC inactive memory can still contain pages that need to be
pushed out to disk or are otherwise expensive to reclaim.
Also note my file time stamp comment wasn't directed at compile time
but project open / indexing time. An issue like that can cause Xcode,
etc. to do more then it needs to be doing.
-Shawn
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