Re: linux deadline i/o elevator tuning

From: Mark Wong <markwkm(at)gmail(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: linux deadline i/o elevator tuning
Date: 2009-04-09 15:09:47
Message-ID: 70c01d1d0904090809he27fa7l1f661fa6b4a4c0cf@mail.gmail.com
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On Thu, Apr 9, 2009 at 7:53 AM, Mark Wong <markwkm(at)gmail(dot)com> wrote:
> On Thu, Apr 9, 2009 at 7:00 AM, Mark Wong <markwkm(at)gmail(dot)com> wrote:
>> Hi all,
>>
>> Has anyone experimented with the Linux deadline parameters and have some
>> experiences to share?
>
> Hi all,
>
> Thanks for all the responses, but I didn't mean selecting deadline as
> much as its parameters such as:
>
> antic_expire
> read_batch_expire
> read_expire
> write_batch_expire
> write_expire

And I dumped the parameters for the anticipatory scheduler. :p Here
are the deadline parameters:

fifo_batch
front_merges
read_expire
write_expire
writes_starved

Regards,
Mark

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