Re: Checking dependencies
Re: Checking dependencies
- Subject: Re: Checking dependencies
- From: "Emile Tobenfeld (a. k. a Dr. T)" <email@hidden>
- Date: Tue, 24 Feb 2009 19:42:55 -0500
At 4:06 PM -0800 2/24/09, Chris Espinosa wrote:
On Feb 24, 2009, at 3:54 PM, Emile Tobenfeld (a. k. a Dr. T) wrote:
This seems to take 5 - 10 times as long in 3.1 than it did in
2.4/2.5, Anyone know why, or what can be done about it?
There's no general regression from 2.5 to 3.1 in Dependency Checking
times, but we do know of a handful of cases where Checking
Dependencies is pathologically bad. We don't have enough
information about these to determine why, but some suggestions are:
- certain network configurations hit a problem where searching for
"net/inet.h" causes a long NFS mount/timeout
- we've seen projects with 50-100 cross-project references that
exhaust system memory and cause Xcode to swap to death
- if your build folder is inside your project folder, and you have a
recursive user header search path pointing at your project folder,
the folder-walk time can grow exponentially
Removing a non-recursive search path to the project folder seems to
have helped a great deal. Thanks, again.
The more information you can provide (in private, in a
http://bugreporter.apple.com report) the more we can help you out,
often with project reconfiguration. One piece of forensics that
might help is to clean your project, launch Terminal and type:
$sudo fs_usage Xcode > ~/XcodeFSUsage.txt
and open your project and click Build. When Checking Dependencies
ends, go back to Terminal and control-C, then attach the
XcodeFSUsage.txt file to the bug report.
Chris
--
"The test of a first-rate intelligence is the ability to hold two
opposed ideas in the mind at the same time, and still retain the
ability to function."
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Visit "Before the Fall -- Images of the World Trade Center" at
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Emile Tobenfeld, Ph. D.
Video Producer Image Processing Specialist
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http://www.youtube.com/Tobenfeld
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