Re: Asynchronous I/O Support - Mailing list pgsql-hackers

From Bruno Wolff III
Subject Re: Asynchronous I/O Support
Date
Msg-id 20061019202801.GA4301@wolff.to
Whole thread Raw
In response to Re: Asynchronous I/O Support  (Neil Conway <neilc@samurai.com>)
Responses Re: Asynchronous I/O Support  ("Zeugswetter Andreas ADI SD" <ZeugswetterA@spardat.at>)
List pgsql-hackers
On Sun, Oct 15, 2006 at 14:26:12 -0400, Neil Conway <neilc@samurai.com> wrote:
> 
> At least according to [1], kernel AIO on Linux still doesn't work for
> buffered (i.e. non-O_DIRECT) files. There have been patches available
> for quite some time that implement this, but I'm not sure when they are
> likely to get into the mainline kernel.
> 
> -Neil
> 
> [1] http://lse.sourceforge.net/io/aio.html

An improvement is going into 2.6.19 to handle asynchronous vector reads
and writes. This was covered by Linux Weekly News a couple of weeks ago:
http://lwn.net/Articles/201682/


pgsql-hackers by date:

Previous
From: Bruce Momjian
Date:
Subject: Beta, RC Time?
Next
From: Krycek
Date:
Subject: Granting all tables in schema by one SQL command