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Re: FreeBSD config

From: Vivek Khera <khera(at)kcilink(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: FreeBSD config
Date: 2004-02-27 18:33:33
Message-ID: x7eksgv0ci.fsf@yertle.int.kciLink.com (view raw or flat)
Thread:
Lists: pgsql-performance
>>>>> "DM" == Dror Matalon <dror(at)zapatec(dot)com> writes:

DM> which brings me back to my question why not make Freebsd use more of its
DM> memory for disk caching and then tell postgres about it. 

Because this is a painfully hard thing to do ;-(

It involves hacking a system header file and recompiling the kernel.
It is not a simple tunable.  It has side effects regarding some other
sizing parameter as well, but I don't recall the details.  Details
have been posted to this list at least once before by Sean Chittenden.

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Vivek Khera, Ph.D.                Khera Communications, Inc.
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AIM: vivekkhera Y!: vivek_khera   http://www.khera.org/~vivek/

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