RE: Benchmarking L2 cache on the Alpha 21264

[Greg Lindahl]

> But in L2 cache, the numbers from
> different runs may be off by as much as 20%, for which I cannot find a
> good explanation.

Page coloring?

> In particular, it seems that code running just inside the L2 cache (4
> MB on the UP2000 and ES40) is not performing much better than code in
> main memory, which would be a pity.

Which would be a smoking gun.

-- greg