Re: Distributed build overhead and Mac Mini vs XServe pricing
Re: Distributed build overhead and Mac Mini vs XServe pricing
- Subject: Re: Distributed build overhead and Mac Mini vs XServe pricing
- From: Andrew Kimpton <email@hidden>
- Date: Thu, 10 Feb 2005 16:58:30 -0800
I wrote:
The launch this week of the new Mac Mini had be doing some back of
envelope math and small benchmarking.
I benchmarked building one of our larger libraries on a 1.5GHz
PowerBook G4 : and got an average build time of 395 seconds. I Build
the same library on my dual 2GHz G5 and got an average build time of
160 seconds. So it would appear that the G5 is approx 2.5 times faster
than the PowerBook.
Extrapolating from these numbers a little would give 474 seconds for a
1.25Ghz G4 and 140 seconds for dual 2.3 GHz G5 or a scale of 3.4 times
faster.
It's been about a month since my first post - but my Mac Mini took a
while to show up !
Doing some build testing today revealed that the same library as in the
earlier tests took an average of 527 seconds on 1.25GHz G4 with 256MB
Memory (this is a local build using the local disc). Increasing the
memory to 1GByte reduced the build time to an average of 470 seconds
(good to see my earlier estimate was so close !) So more memory is
definately a good investment.
On this basis the Mini's would seem to be a good addition to a build
farm - at least in smallish numbers. I'm not sure whether I'm bold
enough to order another 5 minis to see if they equal one Xserve - but I
could certainly see adding 2 or 3 minis to a build system.
Andrew 8-)
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