Re: XCode editor intolerably slow
Re: XCode editor intolerably slow
- Subject: Re: XCode editor intolerably slow
- From: Bill Bumgarner <email@hidden>
- Date: Sat, 30 Jul 2005 21:04:28 -0700
On Jul 30, 2005, at 5:57 PM, Shaun Wexler wrote:
On Jul 30, 2005, at 5:09 PM, Steve Gehrman wrote:
I've got a dual 2.5, and a dual 1.4 using distcc and I'm ripping
my hair out everyday in frustration. It's still too slow! I
can't even edit while I'm compiling!
When I'm doing a full build, I'll enable distcc and have 7 CPUs
crunching on it (G3, G4, 2x Dual G4, G5), and it's WAY faster than
just the Dual 1.42 G4, but you're right, trying to edit during a
build is not fun.
This is fallout from the architecture of DistCC. DistCC
preprocesses each source file on the local machine such that the
remote machine effectively compiles one big source file with no
#includes. Sort of -- there is an optimization such that
precompiled headers will be used instead of just the big source file.
In any case, this means that your local machine still has to do a lot
of work to feed the source to the remote machines for compilation.
We found the limit to about 6 simultaneous remote jobs because that
implied 6 simultaneous local preprocessing tasks, which pushes the
local machine about to its limit.
At least it did -- the # of remote distribution jobs that can be
simultaneously supported is very much limited by the architecture of
the local machine. The faster your primary development box, the more
build servers you can effectively use.
b.bum
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