Build slowdown with 4 processors vs. 2 or 1?
Build slowdown with 4 processors vs. 2 or 1?
- Subject: Build slowdown with 4 processors vs. 2 or 1?
- From: Jim Wintermyre <email@hidden>
- Date: Thu, 7 Dec 2006 21:47:21 -0800
Here's a weird one. In one of my projects, when I build in XCode on
the Mac Pro, it grinds to a halt after 4 files. There is a flurry of
disk activity, and hardly any CPU activity. Top seems to indicate a
lot of swapping going on. This goes on for around a couple minutes.
What's weird is that if I set the number of processors to 2 or 1, the
problem goes away. The entire project builds in less than 20
seconds, and the CPU load is pegged pretty much the entire time,
which is what I'd expect. Any ideas what could be going on here?
Any settings I could tweak?
Thanks,
Jim
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