Re: Distributed Build confusion
Re: Distributed Build confusion
- Subject: Re: Distributed Build confusion
- From: Rick Ballard <email@hidden>
- Date: Wed, 31 Oct 2007 08:32:12 -0700
On Oct 31, 2007, at 6:17 AM, Matt Gough wrote:
When using Distributed builds, the local Mac doesn't actually do
much compiling itself. I had always assumed my machine would be
doing 4 compiles (one for each core) as well as farming out other
compiles to the network, but it doesn't. My Mac just sits around
idly (CPU hovering around 8%) while it waits for results to come in
from the network. No wonder the entire build is slower.
Is there some way to get it to behave how I expect as opposed to how
it currently is, as that then should result in a faster build time.
BTW - this is all with Shared workgroup build, not Dedicated network
build
Add a host named "localhost" and make sure it's enabled to force your
local machine to be used when distributing builds. Assuming you have a
reasonably fast machine, this is usually required to see benefit out
of Shared workgroup builds (distcc). If you have a slow machine and
are distributing to other fast machines, however, turning localhost
off may give you more build performance.
This requires at least Xcode 2.5 or Xcode 3.0. We realize that it's
not very intuitive, and would like to address that in the future.
- Rick
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