Re: Benchmarking objrmap under memory pressure

Hugh Dickins
2004-04-15T16:49:05Z

On Thu, 15 Apr 2004, Bill Davidsen wrote:
> Hugh Dickins wrote:
> >
> > The worst that will happen with anonmm's mremap move, is that some
> > app might go slower and need more swap. Unlikely, but agreed possible.
>
> It appears that users on small memory machines running kde are not of
> concern to you. Unfortunately that describes a fair number of people,
> not everyone has the big memory fast system. I will try to get some
> reproducible numbers, but "consistently feels faster" is a reason to
> keep running -aa even if I can't quantify it.

Appearances can be deceptive. Of course I care about users,
of small or large memory machines, running kde or not.

It appears that you do not understand that we're talking about a
case so rare that we've never seen it in practice, only by testing.

But perhaps we haven't looked out for it enough (no printk), I'd better
put something in to tell us when it does occur, thanks for the reminder.

If -aa consistently feels faster to you, great, go with it:
but I doubt it's because of this issue we're discussing!

Hugh