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From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: lkml <linux-kernel@vger.kernel.org>, linux-mm@kvack.org
Subject: Background scanning change on 2.4.6-pre1
Date: Thu, 7 Jun 2001 15:50:31 -0300 (BRT)	[thread overview]
Message-ID: <Pine.LNX.4.21.0106071545520.1156-100000@freak.distro.conectiva> (raw)


Hi Linus, 


Who did this change to refill_inactive_scan() in 2.4.6-pre1 ? 

        /*
         * When we are background aging, we try to increase the page aging
         * information in the system.
         */
        if (!target)
                maxscan = nr_active_pages >> 4;

This is going to make all pages have age 0 on an idle system after some
time (the old code from Rik which has been replaced by this code tried to 
avoid that)

Could you please explain me the reasoning behind this change ?  

Thanks 


             reply	other threads:[~2001-06-07 20:26 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-07 18:50 Marcelo Tosatti [this message]
2001-06-07 20:43 ` Background scanning change on 2.4.6-pre1 Linus Torvalds
2001-06-07 20:51   ` Linus Torvalds
2001-06-07 19:30     ` Marcelo Tosatti
2001-06-07 21:05   ` Andreas Dilger
2001-06-07 21:08   ` Jonathan Morton
2001-06-09  3:26   ` Rik van Riel
2001-06-07 21:09 ` Andreas Dilger

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