Parker Johnson
2003-Jan-14 23:34 UTC
RE: ext3fs still uses sequential search of file names in director ies?
Andreas was kind enough to point out that not neccesarily all ext3fs have htrees ready to go. I am running redhat8.0 out of the box. How can I check if ext3fs with htrees is running? I can download the kernel source, but I don't know what options were used when it was built by redhat. Thanks much for all of your help. -Parker -----Original Message----- From: Andreas Dilger [mailto:adilger@clusterfs.com] Sent: Tuesday, January 14, 2003 2:12 PM To: Parker Johnson Cc: 'ext3-users@redhat.com'; Ops Subject: Re: ext3fs still uses sequential search of file names in directories? On Jan 14, 2003 13:43 -0800, Parker Johnson wrote:> I am trying to determine the optimal filesystem for accessing largenumbers> of files (25,000+) in a single directory. I have read that ext3fs uses a > sequential search algorithm and wanted to verify that this was stillindeed> the case since this article was published a year ago.Not necessarily (depends on kernel/filesystem config). Please search for "htree" and/or enable the indexed directory feature in the 2.5 or patched 2.4 kernel. Cheers, Andreas -- Andreas Dilger sourceforge.net/projects/ext2resize www-mddsp.enel.ucalgary.ca/People/adilger
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