From: Dmitry Potapov <fortune.fish@gmail.com>
To: Kenneth Marshall <ktm@rice.edu>
Cc: pgsql-performance@postgresql.org
Subject: Re: io storm on checkpoints, postgresql 8.2.4, linux
Date: Wed, 22 Aug 2007 20:28:00 +0400
Message-ID: <878c83960708220928j2cbc5d48qc34bcba009509a62@mail.gmail.com> (raw)
In-Reply-To: <20070822155719.GJ26562@it.is.rice.edu>
References: <878c83960708220833l72dbd461k827aea77ec7d6c32@mail.gmail.com>
<20070822155719.GJ26562@it.is.rice.edu>
2007/8/22, Kenneth Marshall <ktm@rice.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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To: pgsql-performance@postgresql.org
Cc: fortune.fish@gmail.com, ktm@rice.edu
Subject: Re: io storm on checkpoints, postgresql 8.2.4, linux
In-Reply-To: <878c83960708220928j2cbc5d48qc34bcba009509a62@mail.gmail.com>
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