From: Shridhar Daithankar <shridhar_daithankar@persistent.co.in>
To: Vivek Khera <khera@kcilink.com>
To: pgsql-performance@postgresql.org
Subject: Re: go for a script! / ex: PostgreSQL vs. MySQL
Date: Mon, 13 Oct 2003 19:44:55 +0530
Message-ID: <200310131944.55273.shridhar_daithankar@persistent.co.in> (raw)
In-Reply-To: <16266.45299.517752.465494@yertle.int.kciLink.com>
References: <007901c38f2b$0b585590$2802a8c0@webbased10>
<20031011092308.GA39942@perrin.nxad.com>
<16266.45299.517752.465494@yertle.int.kciLink.com>
On Monday 13 October 2003 19:34, Vivek Khera wrote:
> >>>>> "SC" == Sean Chittenden <sean@chittenden.org> writes:
> >>
> >> echo "effective_cache_size = $((`sysctl -n vfs.hibufspace` / 8192))"
> >>
> >> I've used it for my dedicated servers. Is this calculation correct?
>
> SC> Yes, or it's real close at least. vfs.hibufspace is the amount of
> SC> kernel space that's used for caching IO operations (minus the
>
> I'm just curious if anyone has a tip to increase the amount of memory
> FreeBSD will use for the cache? It appears to me that even on my 2Gb
> box, lots of memory is 'free' that could be used for the cache
> (bumping up shared buffers is another option...) yet the disk is being
> highly utilized according to systat.
Is this of any help?..reverse video sucks though.. especially spec'ed person
like me..
http://unix.derkeiler.com/Mailing-Lists/FreeBSD/performance/2003-07/0073.html
Shridhar
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To: pgsql-performance@postgresql.org
Cc: shridhar_daithankar@persistent.co.in, khera@kcilink.com
Subject: Re: go for a script! / ex: PostgreSQL vs. MySQL
In-Reply-To: <200310131944.55273.shridhar_daithankar@persistent.co.in>
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