Date: Sun, 26 Jul 1998 11:24:01 +0200 From: Andreas Klemm <andreas@klemm.gtn.com> To: dg@root.com, Brian Feldman <green@zone.baldcom.net> Cc: freebsd-current@FreeBSD.ORG Subject: Re: New LINT options: what is VM coloring? Message-ID: <19980726112401.A5570@klemm.gtn.com> In-Reply-To: <199807260010.RAA27997@implode.root.com>; from David Greenman on Sat, Jul 25, 1998 at 05:10:54PM -0700 References: <Pine.BSF.4.00.9807251808530.6651-100000@zone.baldcom.net> <199807260010.RAA27997@implode.root.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, Jul 25, 1998 at 05:10:54PM -0700, David Greenman wrote: > Page coloring is the process of allocating pages that have physical > alignment that provides optimal utilization of the memory cache. This can > be a big win for direct-mapped caches (e.g. most Pentium L2 caches), but > loses effectiveness with set-associative caches (e.g. Pentium Pro, which > has a set size of 4). Do you think it would be better to turn PQ off using: options PQ_NOOPT # No coloring -- Andreas Klemm http://www.FreeBSD.ORG/~andreas What gives you 90% more speed, for example, in kernel compilation ? http://www.FreeBSD.ORG/~fsmp/SMP/akgraph-a/graph1.html "NT = Not Today" (Maggie Biggs) ``powered by FreeBSD SMP'' 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?19980726112401.A5570>