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Date:      Mon, 3 Apr 2006 23:36:39 +1000
From:      Norberto Meijome <freebsd@meijome.net>
To:        usleepless@gmail.com
Cc:        Miguel <mmiranda@123.com.sv>, freebsd-questions@freebsd.org
Subject:   Re: terrible performance in 6.1beta4
Message-ID:  <20060403233639.21a65930@localhost>
In-Reply-To: <c39ec84c0604030618s475606fela22c091ea5ce7cf3@mail.gmail.com>
References:  <442B2FC6.9040001@123.com.sv> <20060403225821.45fcc26e@localhost> <c39ec84c0604030618s475606fela22c091ea5ce7cf3@mail.gmail.com>

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On Mon, 3 Apr 2006 15:18:02 +0200
usleepless@gmail.com wrote:

> Beto,
> 
> i believe he has given up.
> 

:( without knowing WHAT is the problem? 

> i would say that on a dedicated database machine 50-75%
> dedicated(shared) memory is not overkill.

of course not. I am not sure I read his vmstat screenshot right, but it
seemed to me that the box was using a lot of disk, but had lots of
free memory - i.e., it was probably just reading the data and the
disks maxed out?  Miguel, what does gstat show ? (it'll show the % busy
of each device in GEOM , which also includes non-RAID devices, so it's
quite useful)

> 
> wasn't there some other switch which determined wether to page
> shared-memory out?

i dont actually recall - my DB project had to be put on hold about 75%
ready for prod, trying to get back onto it soon.



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