Date: Sun, 18 Jun 1995 20:34:08 +0200 (MET DST) From: roberto@blaise.ibp.fr (Ollivier Robert) To: peter@haywire.DIALix.COM (Peter Wemm) Cc: hackers@freebsd.org Subject: Re: How does the disk IO clustering work? Message-ID: <199506181834.UAA14935@blaise.ibp.fr> In-Reply-To: <Pine.SV4.3.91.950610135321.14840F-100000@haywire.DIALix.COM> from "Peter Wemm" at Jun 19, 95 02:22:59 am
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> > jhome # tunefs -p /dev/rsd0h > tunefs: maximum contiguous block count: (-a) 1 You can push this to 8 > tunefs: rotational delay between contiguous blocks: (-d) 4 ms You should lower this to 0. > tunefs: maximum blocks per file in a cylinder group: (-e) 1024 > tunefs: minimum percentage of free space: (-m) 10% Now the default is 8%. There is another parameter that can be set only at newfs time : -n 1 -- Ollivier ROBERT -=- The daemon is FREE! -=- roberto@FreeBSD.ORG FreeBSD keltia 2.0-BUILT-19950503 #3: Wed May 3 19:53:04 MET DST 1995
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