Date: Fri, 13 Sep 1996 08:40:24 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: mrcpu@cdsnet.net (Jaye Mathisen) Cc: jhs@FreeBSD.org, sysseh@devetir.qld.gov.au, current@FreeBSD.org Subject: Re: VM/kernel problems? Message-ID: <199609131340.IAA02448@dyson.iquest.net> In-Reply-To: <Pine.NEB.3.95.960912221646.9658r-100000@mail.cdsnet.net> from "Jaye Mathisen" at Sep 12, 96 10:18:54 pm
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> > Hmmm, as of -current supped on the 11th and 12th, my box is working just > yippee skippee after a make world. > > Although I'm not using John's cache color mumbo-jumbo voodoo > evilness. > Well, the bugs haven't been in there anyway... The pmap code is probably the most difficult code that I work on (for me.) Also buffer bug was due to an oversight in vfs_bio. I don't think that the page-coloring has caused any bugs yet. Additionally, the page-coloring is kind-of being forced on everyone, because the it is on by default (but running in a more conservative mode: opt for 64K cache.) If we never see a performance hit, we might just enable it for a 256K cache, since newer machines almost all have it, and it really doesn't hurt systems with smaller caches very much. You can run without it enabled, but I don't think that code has be tested very well (sections of vm_page.c have been re-done to support the coloring.) (One thing that I do need to do is to move the page coloring config from vm_page.h to a machine dependent file somewhere.) John
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