From: Rik van Riel <H.H.vanRiel@fys.ruu.nl>
To: "Stephen C. Tweedie" <sct@dcs.ed.ac.uk>
Cc: "Benjamin C.R. LaHaise" <blah@kvack.org>, linux-mm <linux-mm@kvack.org>
Subject: Re: [uPATCH] small kswapd improvement ???
Date: Thu, 5 Mar 1998 00:27:25 +0100 (MET) [thread overview]
Message-ID: <Pine.LNX.3.91.980305002311.1439C-100000@mirkwood.dummy.home> (raw)
In-Reply-To: <199803042111.VAA01668@dax.dcs.ed.ac.uk>
On Wed, 4 Mar 1998, Stephen C. Tweedie wrote:
> Regarding the tsk->swap_address stuff: swap_out_pmd() includes the line
>
> tsk->swap_address = address + PAGE_SIZE;
Indeed, the tsk->swap_address = 0 might fit better in
swap_out(), and added to the switch statement at the
bottem, in the 0 case to be exact.
> One other observation while looking at this code: we currently walk over
> every process when swapping, and this is wrong. We should only walk
> over each mm_struct once. Another one for the list for 2.2.
Maybe we could give a run a serial number, and add that
number to the struct vma_struct. The serial number should
be updated each time we do the AGE_CLUSTER_SIZE thingy
because we ran out of processes with p->swap_cnt > 0.
Rik.
+-----------------------------+------------------------------+
| For Linux mm-patches, go to | "I'm busy managing memory.." |
| my homepage (via LinuxHQ). | H.H.vanRiel@fys.ruu.nl |
| ...submissions welcome... | http://www.fys.ruu.nl/~riel/ |
+-----------------------------+------------------------------+
next prev parent reply other threads:[~1998-03-04 23:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-03-03 17:05 Rik van Riel
1998-03-03 19:09 ` Rik van Riel
1998-03-03 23:54 ` Stephen C. Tweedie
1998-03-03 23:59 ` Rik van Riel
1998-03-04 1:17 ` Benjamin C.R. LaHaise
1998-03-04 11:54 ` Rik van Riel
1998-03-04 21:11 ` Stephen C. Tweedie
1998-03-04 23:27 ` Rik van Riel [this message]
1998-03-04 14:00 ` Dr. Werner Fink
1998-03-04 15:33 ` Rik van Riel
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