Date: Tue, 4 Jul 2000 20:43:21 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Alfred Perlstein <bright@wintelcom.net> Cc: arch@FreeBSD.ORG Subject: Re: HEADSUP: Re: name cache size Message-ID: <Pine.BSF.4.21.0007042022020.15966-100000@besplex.bde.org> In-Reply-To: <20000702141740.S25571@fw.wintelcom.net>
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On Sun, 2 Jul 2000, Alfred Perlstein wrote: > * Sitaram Iyer <ssiyer@cs.rice.edu> [000702 14:15] wrote: > > Thus, Alfred Perlstein wrote... > > > > how can I increase the size of freebsd's name cache? > > > sysctl -w vfs.vmiodirenable=1 > > > > thanks, that worked. > > I would like to make this the default in 5.0 so the bugs (if any) can > be worked out. > > sysctl -w vfs.vmiodirenable=1 > > I'm aware of the bloat of the dirsize for the default case, and it's a > bogus argument, we need to be able to cache correctly for performance > reasons. The current default is for performance reasons. It may be the wrong space-time tradeoff for systems with enough memory, but I think this is only because caching is poorly implemented in the non-VMIO case (we discard B_MALLOC'ed blocks too soon because we don't invest enough in resources to map them). Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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