On Mon, 15 Jun 2009, Rich Teer wrote:
You actually have that backwards. :-) In most cases, compression is very desirable. Performance studies have shown that today's CPUs can compress data faster than it takes for the uncompressed data to be read or written.
Do you have a reference for such an analysis based on ZFS? I would be interested in linear read/write performance rather than random access synchronous access.
Perhaps you are going to make me test this for myself.
You are correct that the compression/decompression uses CPU, but most systems have an abundance of CPU, especially when performing I/O.
I assume that you are talking about single-user systems with little else to do?
Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
