Re: was there a change in FreeBSD SHM implementation from - Mailing list pgsql-general

From Curt Sampson
Subject Re: was there a change in FreeBSD SHM implementation from
Date
Msg-id Pine.NEB.4.44.0207120935020.436-100000@angelic.cynic.net
Whole thread Raw
In response to Re: was there a change in FreeBSD SHM implementation from  (Vivek Khera <khera@kcilink.com>)
Responses Re: was there a change in FreeBSD SHM implementation from
Re: was there a change in FreeBSD SHM implementation from
List pgsql-general
On Thu, 11 Jul 2002, Vivek Khera wrote:

> Actually performance went down.  Way down.  I disagree with your
> argument that increasing the cache will help, since the cache is not
> needed if you don't pushd out your SHM pages in the first place and
> need to reload them quickly.

Ah, so your entire working data set can fit into your shared memory? In
that case, yes, you are better off not decreasing it. I guess we should
add a note to the FAQ for people using very small databases....

cjs
--
Curt Sampson  <cjs@cynic.net>   +81 90 7737 2974   http://www.netbsd.org
    Don't you know, in this new Dark Age, we're all light.  --XTC


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