On Fri Dec 5 14:23:22 EST 2008, [EMAIL PROTECTED] wrote: > Again, you can stream a whole frame buffer reasonably fast - that should > be nearly full-rate; it should be full rate if you pre-fetch with > sufficient advance notice (500-1000 clocks), or DMA. But random access > reads *have* to be slow: you get a stall while the system goes to PCIe > for each cache line you attempt to read from. > > Paul
the cpu is allowed to speculatively cache WC memory. - erik
