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    SubjectRe: Severe VFS Performance Issues 2.6 with > 95000 directory entries
    Douglas McNaught wrote:

    >jmerkey <jmerkey@soleranetworks.com> writes:
    >
    >
    >
    >>Nikita Danilov wrote:
    >>
    >>
    >>
    >>>Jeff V. Merkey writes:
    >>>
    >>>
    >>>>>The subject line speaks for itself. This is using standard VFS
    >>>>>
    >>>>>
    >>>readdir > and lookup calls through the VFSwith ftp. Very poor.
    >>>
    >>>Reiser4 works fine with 100M entries in a directory, so VFS is not a
    >>>bottleneck here.
    >>>
    >>>
    >>>
    >>>
    >>how about with ftp running on top? Try running FTP in directory with
    >>100M entries. See how long it takes to return the data to
    >>the remote client for a dir listing.
    >>
    >>
    >
    >What filesystem are you using? If it's ext3 without dirindex turned
    >on, that would definitely explain it.
    >
    >-Doug
    >
    >
    >
    Thanks. I'll enable dirindex.

    Jeff
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