Re: Various performance questions

From: Vivek Khera <khera(at)kcilink(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Various performance questions
Date: 2003-10-27 16:12:37
Message-ID: x7he1uveve.fsf@yertle.int.kciLink.com
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>>>>> "DM" == Dror Matalon <dror(at)zapatec(dot)com> writes:

DM> effective_cache_size = 25520 -- freebsd forumla: vfs.hibufspace / 8192

DM> 1. While it seems to work correctly, I'm unclear on why this number is
DM> correct. 25520*8 = 204160 or 200 Megs. On a machine with 2 Gigs it
DM> seems like the number should be more like 1 - 1.5 Gigs.

Nope, that's correct...

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AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/

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