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    SubjectRe: Transparent compression in the FS
    Erik Bourget writes:
    > Erik Mouw <erik@harddisk-recovery.com> writes:
    >
    > > On Wed, Oct 15, 2003 at 05:50:38PM +0400, Nikita Danilov wrote:
    > >> Erik Mouw writes:
    > >> > Nowadays disks are so incredibly cheap, that transparent compression
    > >> > support is not realy worth it anymore (IMHO).
    > >>
    > >> But disk bandwidth is so incredibly expensive that compression becoming
    > >> more and more useful: on compressed file system bandwidth of user-data
    > >> transfers can be larger than raw disk bandwidth. It is the same
    > >> situation as with allocation of disk space for files: disks are cheap,
    > >> but storing several files in the same block becomes more advantageous
    > >> over time.
    > >
    > > You have a point, but remember that modern IDE drives can do about
    > > 50MB/s from medium. I don't think you'll find a CPU that is able to
    > > handle transparent decompression on the fly at 50MB/s, even not with a
    > > simple compression scheme as used in NTFS (see the NTFS docs on
    > > SourceForge for details).
    > >
    > > Erik
    > >
    > > PS: let me guess: among other things, reiser4 comes with transparent
    > > compression? ;-)
    >
    > Reiser4 made my coffee this morning, it's wonderful :)
    >
    > Seriously, though, (and getting off the topic), has anyone started to use
    > reiser4 in a high-load environment? I've got a mail system that shoots a few
    > million messages through it every day and a filesystem that's faster with
    > creating and deleting tons of ~4kb qmail queue files (with data journaling!)
    > would be verrry innnteresting.

    Please, don't use reiser4 in production environments. It is still in the
    late debugging stage. Stay tuned, as they say. :)

    >
    > - Erik Bourget
    >

    Nikita.
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