On Tue, 22 Mar 2005, Rick Jansen wrote:


I'm looking for a *fast* solution to search thru ~ 4 million records of book descriptions. I've installed PostgreSQL 8.0.1 on a dual opteron server with 8G of memory, running Linux 2.6. I haven't done a lot of tuning on PostgreSQL itself, but here's the settings I have changed so far:

shared_buffers = 2000 (anything much bigger says the kernel doesnt allow it, still have to look into that)

use something like echo "150000000" > /proc/sys/kernel/shmmax
to increase shared memory. In your case you could dedicate much more

Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83

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