Re: High Mem Options

Martin J. Bligh (
Wed, 05 Mar 2003 13:34:22 -0800

> Ah, if you are referring to a number from me, that was with 2.4 and
> that number seemed high to me at the time. I don't believe that 10%
> *should* be the amount of degradation. But I don't have current numbers
> (that I can share, anyway ;-) that prove anything less than that.
> I expect that we'll be diving into this more over the next few months
> as we can generate some large workloads and find the cause of the
> degradation (and hopefully minimize it).

Would also be useful to measure the overhead on a machine with < 4Gb
of RAM ... otherwise you have two effects to deal with:

1. the PAE overhead.
2. The increase in RAM - more data to manage, and potential bounce-buffers.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at