Re: Xcode 3.2.1 update is available in iPhone OS 3.1.2 SDK
Re: Xcode 3.2.1 update is available in iPhone OS 3.1.2 SDK
- Subject: Re: Xcode 3.2.1 update is available in iPhone OS 3.1.2 SDK
- From: Steve Mills <email@hidden>
- Date: Thu, 08 Oct 2009 14:21:39 -0500
On Oct 8, 2009, at 13:57:19, Chris Espinosa wrote:
If you are building large or complex C++ files and have less than half
a gigabyte of memory per processor core on your machine, Xcode‚s
algorithm for backing off on issuing new compile jobs in low-memory
situations may not take effect early enough, and your machine may
start swapping. If this happens to you consistently, consider setting
the PBXNumberOfParallelBuildSubtasks user default.
I have 16 cores and the pref set to 10, and 8G of RAM. Still,
compiling a single C++ file (not building and linking, just compiling,
beginning with about 70% of my RAM free) today caused a disk grinding
session that lasted nearly 20 minutes, and Xcode never seemed to go
back to a reasonable amount of RAM usage even after I canceled the
compile and came back to it much later. I ended up quitting and
rebooting. Man, I hope this is the top bug on somebody's plate,
because even Visual Studio was beating Xcode through single-file
complete builds today, and that NEVER happened with 2.5.
Steve Mills
Drummer, Mac geek
http://sjmills5.home.mchsi.com/
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