Date: Wed, 06 Mar 2002 10:06:35 -0800 From: Terry Lambert <tlambert2@mindspring.com> To: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> Cc: Matthew Dillon <dillon@apollo.backplane.com>, Bruce Evans <bde@zeta.org.au>, arch@FreeBSD.ORG Subject: Re: reclaiming v_data of free vnodes Message-ID: <3C865AAB.BB692A49@mindspring.com> References: <20020305214534.S4601-100000@gamplex.bde.org> <200203051817.g25IHLm71569@apollo.backplane.com> <200203061557.g26FuMfu068151@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp>
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Seigo Tanimura wrote: > On Tue, 5 Mar 2002 10:17:21 -0800 (PST), > Matthew Dillon <dillon@apollo.backplane.com> said: > > Matthew> zalloc subsystem cannot shift loads at all and as a consequence we > Matthew> already have problems with the system running out of KVM. > > I have read that the zone allocator of Mach has a gabage collector to > reclaim unused free pages. Was that forgotten to port to FreeBSD? The FreeeBSD code for the most part has the same API, but in a lot of places, the underlying code is completely different. John made an intentional decision for type stability when he made the semantic "once committed to a zone, always in that zone". Personally, I'd really object to a garbage collector; the one thing you can be sure of with garbage collectors is that they will run at the most inconvenient time possible. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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