Messages in this thread | | | From | Nikita Danilov <> | Date | Wed, 15 Oct 2003 19:05:33 +0400 | Subject | Re: Transparent compression in the FS |
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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 >
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