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

From Martijn van Oosterhout
Subject Re: Asynchronous I/O Support
Date
Msg-id 20061015175627.GB30986@svana.org
Whole thread Raw
In response to Asynchronous I/O Support  ("Raja Agrawal" <raja.agrawal@gmail.com>)
Responses Re: Asynchronous I/O Support  ("Luke Lonergan" <llonergan@greenplum.com>)
Re: Asynchronous I/O Support  (Neil Conway <neilc@samurai.com>)
List pgsql-hackers
On Sun, Oct 15, 2006 at 04:16:07AM +0530, Raja Agrawal wrote:
> Postgre8.1 doesn't seem to support asynchronous I/O. Has its design
> been thought off already?

Sure, I even implemented it once. Didn't get any faster. At that point
I realised that my kernel didn't actually support async I/O, and the
glibc emulation sucks for anything other than network I/O, so I gave
up.

Maybe one of these days I should work out if my current system supports
it, and give it another go...

Have enough systems actually got to the point of actually supporting
async I/O that it's worth implementing?

Have a nice day,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.

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