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SubjectRe: Hugepages demand paging V2 [0/8]: Discussion and overview
Date
On Tuesday, October 26, 2004 7:35 am, Robin Holt wrote:
> Sorry for being a stickler here, but the BTE is really part of the
> I/O Interface portion of the shub. That portion has a seperate clock
> frequency from the memory controller (unfortunately slower). The BTE
> can zero at a slightly slower speed than the processor. It does, as
> you pointed out, not trash the CPU cache.

I guess I was getting ahead of myself :). I knew that it was part of the II
but didn't know it had a slower clock frequency than the MD.

> One other feature of the BTE is it can operate asynchronously from
> the cpu. This could be used to, during a clock interrupt, schedule
> additional huge page zero filling on multiple nodes at the same time.
> This could result in a huge speed boost on machines that have multiple
> memory only nodes. That has not been tested thoroughly. We have done
> considerable testing of the page zero functionality as well as the
> error handling.

Might be worth some additional testing...

Jesse
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