Re: [PATCH] O10int for interactivity

From: Oliver Neukum <oliver@neukum.org>
To: Jamie Lokier <jamie@shareable.org>, Con Kolivas <kernel@kolivas.org>
Cc: Nick Piggin <piggin@cyberone.com.au>,
	Andrew Morton <akpm@osdl.org>, Johoho <johoho@hojo-net.de>,
	wodecki@gmx.de, Valdis.Kletnieks@vt.edu,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] O10int for interactivity
Date: Thu, 31 Jul 2003 17:24:12 +0200	[thread overview]
Message-ID: <200307311724.12738.oliver@neukum.org> (raw)
In-Reply-To: <20030731145937.GD6410@mail.jlokier.co.uk>

> > This part interests me. It would seem that either 
> > 1. The AS scheduler should not bother waiting at all if the process is not 
> > going to wake up in that time
> 
> How about something as simple as: if process sleeps, and AS scheduler
> is waiting since last request from that process, AS scheduler stops
> waiting immediately?
> 
> In other words, a hook in the process scheduler when a process goes to
> sleep, to tell the AS scheduler to stop waiting.
> 
> Although this would not always be optimal, for many cases the point of
> AS is that the process is continuing to run, not sleeping, and will
> issue another request shortly.

How do you tell which task dirtied the page?
Wouldn't giving a bonus to tasks doing file io achieve the same purpose?
Also, isn't quickly waking up tasks more important?

	Regards
		Oliver