Re: [PATCH/RFC] AutoPage Migration - V0.1 - 0/8 Overview

Avi Kivity
2006-03-15T18:57:48Z

Paul Jackson wrote:

>>a page if a certain mapcount is reached.
>>
>>
>
>He said "accessed", not "referenced".
>
>The point was to copy pages that receive many
>load and store instructions from far away nodes.
>
>
>
Only loads, please. Writable pages should not be duplicated.

>This has only minimal to do with the number of
>memory address spaces mapping the region
>holding that page.
>
>
>

For starters, you could indicate which files need duplication manually.
You would duplicate your main binaries and associated shared objects.
Presumably large numas have plenty of memory so over-duplication would
not be a huge problem.

Is the kernel text duplicated?

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.