From: Mark Kirkwood <markir@paradise.net.nz>
To: Gavin Sherry <swm@linuxworld.com.au>
Cc: David Boreham <david_list@boreham.org>
Cc: pgsql-hackers@postgresql.org
Subject: Re: ice-broker scan thread
Date: Tue, 29 Nov 2005 17:45:17 +1300
Message-ID: <438BDCDD.40600@paradise.net.nz> (raw)
In-Reply-To: <Pine.LNX.4.58.0511291513260.18370@linuxworld.com.au>
References: <Pine.LNX.4.58.0511282217470.13586@josh.db>
<Pine.LNX.4.58.0511291429330.18112@linuxworld.com.au>
<438BD493.3070507@boreham.org>
<Pine.LNX.4.58.0511291513260.18370@linuxworld.com.au>
Gavin Sherry wrote:
>
> The paper I linked to seemed to suggest that they weren't using async IO
> in 9.2 -- which is fairly old. I'm not sure why the authors didn't test
> 10g.
>
There have been async io type parameters in Oracle's init.ora files from
(at least) 8i (disk_async_io=true IIRC) - on Solaris anyway. Whether
this enabled real or simulated async io is probably a good question - I
recall during testing turning it off and seeing kio()? or similar type
calls become write()/read() in truss oupout.
regards
Mark
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To: pgsql-hackers@postgresql.org
Cc: markir@paradise.net.nz, swm@linuxworld.com.au, david_list@boreham.org
Subject: Re: ice-broker scan thread
In-Reply-To: <438BDCDD.40600@paradise.net.nz>
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