Re: effective cache size on FreeBSD (WAS: Performance on SUSE w/ reiserfs) - Mailing list pgsql-performance

From Vivek Khera
Subject Re: effective cache size on FreeBSD (WAS: Performance on SUSE w/ reiserfs)
Date
Msg-id A3542834-9359-4FAC-95E4-F6EC8F635B61@khera.org
Whole thread Raw
In response to effective cache size on FreeBSD (WAS: Performance on SUSE w/ reiserfs)  (Claus Guttesen <kometen@gmail.com>)
List pgsql-performance
On Oct 11, 2005, at 10:54 AM, Claus Guttesen wrote:

> Thank you for your reply. Does this apply to FreeBSD 5.4 or 6.0 on
> amd64 (or both)?
>

It applies to FreeBSD >= 5.0.

However, I have not been able to get a real answer from the FreeBSD
hacker community on what the max buffer space usage will be to
properly set this.  The `sysctl -n vfs.hibufspace` / 8192 estimation
works very well for me, still, and I continue to use it.


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