Date: Fri, 10 Dec 1999 13:52:46 -0500 (EST) From: Zhihui Zhang <zzhang@cs.binghamton.edu> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: freebsd-hackers@FreeBSD.ORG, freebsd-fs@FreeBSD.ORG Subject: Re: Why VMIO directory is a bad idea? Message-ID: <Pine.GSO.3.96.991210135054.10820A-100000@sol.cs.binghamton.edu> In-Reply-To: <199912101907.LAA59861@apollo.backplane.com>
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> :(3) Or maybe we can add a parameter to the filesytem, telling it to try to > :preallocate some contiguous disk space for all directory files. I guess > :that the cost per bit on disk is less than the cost per bit in memory. > > I believe the filesystem already does this. > The FFS tries to allocate space contiguously for any type of file. It does not PRE-allocate disk space, which will result wasteage of disk space if that space is not used later. -Zhihui To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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