Andrew Morton wrote:
>Andrea Arcangeli <andrea@suse.de> wrote:
>
>
>>BTW, one thing that should definitely do readhaead and it's
>>not doing that (at least in 2.4) is the readdir path, again to generate
>>big commands, no matter the seeks. It was lost with the directory in
>>pagecache.
>>
>>
>
>Yes. But ext3 is still doing directory readahead, and I have never
>noticed it gaining any particular benefit over ext2 from it.
>
>And neither fs performs inode table readahead.
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reiser4 does directory readahead. It gets a lot of gain from it.
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