> The P6 does unncessary read-for-ownership cycles even when not in SMP mode.
> It ruins the main memory write performance. However, the reads and in-cache
> writes are so much faster that this only affects things like long bcopys.

Shouldn't bcopy and friends use a read after every cache-line full of data
written (considering alignement and all that fun)? IIRC that would cause a
burst-read of the cache-line, a fill in the cache in exclusive mode and then
a burst-write of the whole line back to main memory. Should be faster since
P5...


Martin