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Distributed Build confusion
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Distributed Build confusion


  • Subject: Distributed Build confusion
  • From: Matt Gough <email@hidden>
  • Date: Wed, 31 Oct 2007 14:17:34 +0100

OK, So I've been doing some timing recently on building with and without Distributed builds turned on.

To cut a long story short, on my 2.66GHz Mac Pro (4 cores) my project always builds faster without distributed builds than it does with it turned on.
(Around the office we have a roughly 50-50 split of similar Mac Pros and Intel iMacs (2GHz I think) 10 Macs in all.)


OK, so I can understand that there is a lot of network traffic and overhead in managing the build, but what I didn't realise until now was this:

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

Thanks

Matt Gough
Agfa Graphics
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