Re: Severe VFS Performance Issues 2.6 with > 95000 directory entries

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Nikita Danilov wrote:

jmerkey 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.

Why are you thinking that it is VFS that is causing performance
degradation here?

Because I see the same degredation local vs. remote. My path for readdir and lookup are short. I dynamically (via math) create the file names on the fly and lookup simply reads a static table in memory for inode number. One thing I can check are calls
to igetblk inside of lookup.

Jeff

> > Jeff > > >[...]
> >
> > > > > > Jeff
> >

Nikita.

> >
> > > >


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