On Tue, Dec 30, 2003 at 10:35:53AM -0800, H. Peter Anvin wrote: > Mike Fedyk wrote: > >On Tue, Dec 30, 2003 at 03:34:28AM -0800, H. Peter Anvin wrote: > > > >>Well, I implemented read-modify-write for RAID-6, and at least on my > >>6-disk system it was a small but measurable performance *loss*. > > > >What was your previous patch doing instead? > > The published snapshots (including the latest, since I backed out > read-modify-write) all do read-reconstruct-write. Does that mean that RRW (as the name seems to imply) would need to read the entire stripe before it could write back the updated stripe compared to a partial read with RMW? - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
