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Re: 32-bit vs. 64-bit SMP clients?
Posted: Sun Jan 18, 2009 10:19 pm
by uncle_fungus
alpha754293 wrote:bollix47 wrote:I can't say which distribution is "best" but if you go with Ubuntu, use 8.04.1 rather than 8.10 as the SMP client will produce roughly 30-40% more PPD on 8.04.1. At least that's my experience and I've seen others report the same especially on 4 or more cores.
viewtopic.php?f=44&t=7362
viewtopic.php?f=44&t=6704&start=15
Where is there such a huge difference between Ubuntu 8.04 and 8.10 with the SMP client???
The 2.6.27 kernel which came with 8.10 initially had a significant performance impact on FAH. The 2.6.28 kernel has been reported to fix whatever was "broken" in the .27 kernel.
Re: 32-bit vs. 64-bit SMP clients?
Posted: Mon Jan 19, 2009 12:53 am
by alpha754293
uncle_fungus wrote:alpha754293 wrote:bollix47 wrote:I can't say which distribution is "best" but if you go with Ubuntu, use 8.04.1 rather than 8.10 as the SMP client will produce roughly 30-40% more PPD on 8.04.1. At least that's my experience and I've seen others report the same especially on 4 or more cores.
viewtopic.php?f=44&t=7362
viewtopic.php?f=44&t=6704&start=15
Where is there such a huge difference between Ubuntu 8.04 and 8.10 with the SMP client???
The 2.6.27 kernel which came with 8.10 initially had a significant performance impact on FAH. The 2.6.28 kernel has been reported to fix whatever was "broken" in the .27 kernel.
Hmm....interesting.
And I am guessing that the default 8.10 doesn't have the updated kernel in it?
Re: 32-bit vs. 64-bit SMP clients?
Posted: Mon Jan 19, 2009 7:57 am
by alpha754293
I think that I might be about ready to start testing the Linux SMP client now on SLES10 (possibly 9, don't know yet for sure), CentOS, and Ubuntu (not sure which version/variant yet.)