Slow link times
Slow link times
- Subject: Slow link times
- From: Jens Alfke <email@hidden>
- Date: Tue, 12 Jan 2010 08:38:07 -0800
| Right now I'm missing ZeroLink :(. On my 2008 MBP, I have a two-minute minimum turnaround time for building Chromium — i.e. if I open chrome.xcodeproj with the "chrome" target, build, then touch one source file and build again, that rebuild takes two minutes. Ouch. Compiling the changed file takes only a second; the great majority of the time is spent linking (with "checking dependencies" a close second.)
This is almost entirely I/O bound. The CPU load is near zero. The same build process on my Mac Pro at work, which has a faster hard disk, takes less than half as long.
I know, this is a very large C++ project, so linking is always going to be a chore. Does anyone have tips on how to optimize link times? Does it help to link subcomponents into static libraries and then link those together? (Actually I think Chrome is doing some of that already.)
—Jens
PS: Xcode 3.2.1 on OS 10.6.2.
|
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