Re: Files per directory

[Yuri Csapo <ycsapo@mines.edu>]

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Beginner wrote:
> 
> Is that going to cause performance issues? The current file system 
> ext3. Would anyone suggest a limit I should set for the maximum or 
> say if they think 10K files is acceptable?
> 

I'm no expert but the answer is probably: "depends on the application."

As far as I know there's no limit to the number of files in a directory 
currently in ext3. There IS a limit to the number of files (actually 
inodes) in the whole filesystem, which is a completely different thing. 
According to Wikipedia "If V is the volume size in bytes, then the 
default number of inodes is given by V/2^13 (or the number of blocks, 
whichever is less)." There's also a limit to the number of 
sub-directories in a directory, currently 32000.

What I can tell you is I have seen applications that use hundreds of 
thousands of files in one directory.

HTH

-- 
Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone:  (303) 273-3503
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Email:   ycsapo@mines.edu

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