linux-kernel - Re: OOM killer gripe (was Re: What still uses the block layer?)

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Message-ID: <20071016112859.1b0fba0e@the-village.bc.nu>
Date:	Tue, 16 Oct 2007 11:28:59 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Rob Landley <rob@...dley.net>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Theodore Tso <tytso@....edu>,
	James Bottomley <James.Bottomley@...eleye.com>,
	Matthew Wilcox <matthew@....cx>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Nick Piggin <piggin@...erone.com.au>
Subject: Re: OOM killer gripe (was Re: What still uses the block layer?)

> I'm sure somebody will eventually write an OLS paper or something on the 
> advisability of making swapping decisions with 4k granularity when disks 
> really want bigger I/O transactions. 

Funnily enough someone thought of that many years ago. They even added
and documented it, then they made it adjustable.

See the vm section of Documentation/filesystems/proc.txt

Alan
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