Date: Sat, 24 Nov 2001 15:08:22 -0400 From: "Jeroen C. van Gelderen" <jeroen@vangelderen.org> To: "'Matthew Dillon'" <dillon@apollo.backplane.com>, "'Kirk McKusick'" <mckusick@beastie.mckusick.com> Cc: "'Sheldon Hearn'" <sheldonh@starjuice.net>, <freebsd-arch@FreeBSD.ORG> Subject: RE: Using a larger block size on large filesystems Message-ID: <004501c1751b$63239e50$38a898d8@cryptohill.net> In-Reply-To: <200111241845.fAOIjM377587@apollo.backplane.com>
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Nice to hear that non-experts like me will be getting good defaults! <<p.s. side note on the buffer cache: The buffer cache is optimized for both 1K/8K and 2K/16K, but it is *NOT* optimized for anything larger. 2K/16K is thus the largest configuration we can use optimally in regards to the buffer cache.>> Is it worth printing this (or a variation) as a diagnostic when newfs is invoked with a larger setting? It would help those who learn by trial-and-error. It may even prevent an unfavourable benchmark report in the future: "FreeBSD performance lousy for 4K/32K filesystem." "Duh, newfs told you so!" Cheers, -J To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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