Horton

Re: Various performance questions

Vivek Khera <khera@kcilink.com>

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From: Vivek Khera <khera@kcilink.com>
To: pgsql-performance@postgresql.org
Date: 2003-10-27T16:12:37Z
Lists: pgsql-performance 
>>>>> "DM" == Dror Matalon <dror@zapatec.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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Vivek Khera, Ph.D.                Khera Communications, Inc.
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