Messages in this thread | | | Date | Tue, 29 Feb 2000 17:04:32 +0100 (CET) | From | Jan Bobrowski <> | Subject | Re: very large directories |
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> Every time a file needs to be opened, the dir is opened and the > filename must be searched for. > > Anyone concerned with file access performance should never put > that many files in a single dir. > > Mike A. Harris
That is not true.
If there's enough RAM for directory cache, the directory size is irrelevant. Directory is scanned when file is first open and then entry is in fast global cache. Organisation of directory tree and directory sizes doesn't affect lookup speed at all.
When your'e getting short on memory or you're listing directory, linear ext2 directory structure will slow down operation, however.
JB
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