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Re: 3.2 builds grind to a halt
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Re: 3.2 builds grind to a halt


  • Subject: Re: 3.2 builds grind to a halt
  • From: Jens Alfke <email@hidden>
  • Date: Tue, 29 Sep 2009 15:42:00 -0700


On Sep 29, 2009, at 2:21 PM, Steve Mills wrote:

Yeah, that prevents the endless grinding. 2 is a bit wimpy. 8 was fine. 12 overwhelms it. I'll try 10 later. But I *hate* having to hack my system this way - it should just work out of the box.

Xcode's default number of parallel builds is usually the same as the number of CPU cores. (Since compilation is CPU-bound, having more parallel tasks than CPUs usually doesn't help.)


In your case that would be 8 parallel tasks; if you've been using more (you said 15?) I would imagine that you customized this setting sometime in the past, so your Xcode setup wasn't out of the box before the upgrade, either.

I haven't noticed GCC using more than about 120MB per process, for small-to-medium-size files. I would imagine the RAM usage depends on the complexity of the code and the number of headers; do you have a huge precompiled header?

—Jens _______________________________________________
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References: 
 >3.2 builds grind to a halt (From: Steve Mills <email@hidden>)
 >Re: 3.2 builds grind to a halt (From: "Sean McBride" <email@hidden>)
 >Re: 3.2 builds grind to a halt (From: Steve Mills <email@hidden>)

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