Date: Mon, 10 Mar 2003 23:37:14 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Bill Moran <wmoran@potentialtech.com> Cc: questions@FreeBSD.ORG Subject: Re: What is a practical max nujmber of files in a directory Message-ID: <20030311053714.GG34011@dan.emsphone.com> In-Reply-To: <3E6D6A0F.5040704@potentialtech.com> References: <3E6D6A0F.5040704@potentialtech.com>
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In the last episode (Mar 10), Bill Moran said: > Question for the gurus or anyone who has done any test on filesystem > performance. > > Where is the point at which a directory has too many files in it? > Mainly with regard to performance degredation? It Depends http://www.cnri.dit.ie/Downloads/fsopt.pdf has a nice rundown of the performance benefits of softupdates, dirhash, dirpref, and vmiodir for different benchmarks (including tests on directories with up to 20000 files). vmiodir and dirpref are now on by default, but the results for softupdates and dirhash are still useful. -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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