Date: Thu, 02 Nov 2000 00:45:30 -0800 From: David Greenman <dg@root.com> To: janb@cs.utep.edu Cc: freebsd-current@FreeBSD.ORG Subject: Re: current paging strategy Message-ID: <200011020845.AAA13439@implode.root.com> In-Reply-To: Your message of "Wed, 01 Nov 2000 23:54:37 MST." <Pine.GSO.4.05.10011012354110.21637-100000@gecko>
next in thread | previous in thread | raw e-mail | index | archive | help
>Interesting. THis needs about two bytes per page for the counter? Actually, we found that a single byte per page was sufficient. Pages tended to be either heavily accessed or rarely accessed. Even in the unusual case where all pages are frequently accessed, the page reclaim rate (and thus adjustment rate of the page references count) increases high enough to still provide for a decent distribution of the counters and for the page LOU to be effective. -DG David Greenman Co-founder, The FreeBSD Project - http://www.freebsd.org President, TeraSolutions, Inc. - http://www.terasolutions.com Pave the road of life with opportunities. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200011020845.AAA13439>