Re: First set of OSDL Shared Mem scalability results, some

On 10/14/2004 12:22 AM, Greg Stark wrote:

> Jan Wieck <JanWieck(at)Yahoo(dot)com> writes:
>
>> Which would require that shared memory is not allowed to be swapped out, and
>> that is allowed in Linux by default IIRC, not to completely distort the entire
>> test.
>
> Well if it's getting swapped out then it's clearly not being used effectively.

Is it really that easy if 3 different cache algorithms (PG cache, kernel
buffers and swapping) are competing for the same chips?

Jan

>
> There are APIs to bar swapping out pages and the tests could be run without
> swap. I suggested it only as an experiment though, there are lots of details
> between here and having it be a good configuration for production use.
>

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