Re: Transparent compression in the FS

[Nikita Danilov]

Erik Mouw writes:
 > On Tue, Oct 14, 2003 at 04:30:50PM -0400, Josh Litherland wrote:
 > > Are there any filesystems which implement the transparent compression
 > > attribute ?  (chattr +c)
 > 
 > The NTFS driver supports compressed files. Because it doesn't have
 > proper write support, I don't think it will do anything useful with
 > chattr +c.
 > 
 > 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.

 > 
 > 
 > Erik
 > 

Nikita.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/