[distcc] Re: First results from distcc integrated cache
dank at kegel.com
Sat Dec 10 01:14:43 GMT 2005
We discovered that the first benchmarks were run with
DISTCC_DIR defaulting to an NFS directory, which killed
the perfomance. Here are some more real numbers for
a linux kernel build, courtesy of Dongmin Zhang:
155 sec test system without distcc.
44 sec. normal distcc, eight-server cluster, -j8
46 sec. caching distcc on same cluster, first run
35 sec caching distcc on same cluster, second run
So with a perfectly preloaded cache, distcc went from 3x faster to 4x faster.
Switching to a faster hash code (adler32 instead of sha-1) didn't
change the results.
We're still playing around with this here, but it might be ready for other folks
to try and/or review. Anyone interested?
Why won't Johnny run Linux? See http://kegel.com/linux/comfort
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