Putting 3 million files in 1 folder vs. putting in sub-folders, which structure is faster for readin

Posted by silent on Stack Overflow See other posts from Stack Overflow or by silent
Published on 2010-05-05T04:15:56Z Indexed on 2010/05/05 4:18 UTC
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If I have 3 million files, which directory structure is better?

Method 1. ~/123456789.htm (Putting all the 3 million files into the same folder without any sub folders)

Method 2. ~/789/123456789.htm (Create 999 sub-folders, each sub-folder contains about 3000 files)

For Windows Server 2008, which structure is faster?

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