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List:       linux-mm
Subject:    Re: new kmod.c - debuggers and testers needed
From:       "Stephen C. Tweedie" <sct () dcs ! ed ! ac ! uk>
Date:       1998-04-20 22:00:14
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Hi,

On Tue, 14 Apr 1998 20:02:09 +0200 (MET DST), Rik van Riel
<H.H.vanRiel@fys.ruu.nl> said:

> On Tue, 7 Apr 1998, Perry Harrington wrote:
>> Threads
>> are useful in their appropriate context, and kswapd, and kmod would benefit
>> from them.

> Hmm, maybe it would be useful for kswapd and bdflush to fork()
> off threads to do the actual disk I/O, so the main thread won't
> be blocked and paused... This could remove some bottlenecks.

bdflush does nothing except IO, so there's no real reason to
twin-thread it.  kswapd does indeed benefit from a separate IO thread,
and I've already got patches which implement a kswiod for IO and a
kswapd for page scanning.  I'll post them once I've got them ready
against the latest kernel: my current patches for this code are pretty
old.

--Stephen

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