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Messages in this thread Complete thread (EXPERIMENTAL) |
Paolo Ciarrocchi wrote:
it appears that this benefit came from the special usercopy code.
What sort of CPU are you using?
It is a PIII@800. hm, don't know. I built the latest postgres locally. Perhaps the alignment of some application buffer is different. I don't know. I've built the osdb test while I've just installed postgres from the Mandrake 9 standard installation (so i586.rpm). May be we are using different version of postgres... Anyway, my test show that there is a lack of performance in 2.5.* is the kernel fits in a machine with low memory, any hint ? And probably the "standard" swappiness value is not the optimal, I'd like to see a few tests with the contest tool ;-) Ciao, Paolo -- ______________________________________________ http://www.linuxmail.org/ Now with POP3/IMAP access for only US$19.95/yr Powered by Outblaze | ||||||||||
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