Re: io storm on checkpoints, postgresql 8.2.4, linux

From: "Dmitry Potapov" <fortune(dot)fish(at)gmail(dot)com>
To: "Kenneth Marshall" <ktm(at)rice(dot)edu>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: io storm on checkpoints, postgresql 8.2.4, linux
Date: 2007-08-22 16:28:00
Message-ID: 878c83960708220928j2cbc5d48qc34bcba009509a62@mail.gmail.com
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2007/8/22, Kenneth Marshall <ktm(at)rice(dot)edu>:
>
>
> You are working at the correct level. The bgwriter performs the I/O
> smoothing
> function at the database level. Obviously, the OS level smoothing function
> needed to be tuned and you have done that within the parameters of the OS.
> You may want to bring this up on the Linux kernel lists and see if they
> have
> any ideas.

Will do so, this seems to be a reasonable idea.

--
Regards,
Dmitry

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