Re: [RFC] how do we move the VM forward? (was Re: [RFC] cleanup ofuse-once)

[Herbert Poetzl <herbert@13thfloor.at>]

On Tue, May 03, 2005 at 05:51:43PM -0700, David Lang wrote:
> On Wed, 4 May 2005, Nick Piggin wrote:
> 
> >
> >Also having a box or two for running regression and stress
> >testing is a must. I can do a bit here, but unfortunately
> >"kernel compiles until it hurts" is probably not the best
> >workload to target.

if there are some tests or output (kernel logs, etc)
or proc info or vmstat or whatever, which doesn't take
100% cpu time, I'm able and willing to test it on different
workloads (including compiling the kernel until it hurts ;)

> >In general most systems and their workloads aren't constantly
> >swapping, so we should aim to minimise IO for normal
> >workloads. Databases that use the pagecache (eg. postgresql)
> >would be a good test. But again we don't want to focus on one
> >thing.
> >
> >That said, of course we don't want to hurt the "really
> >thrashing" case - and hopefully improve it if possible.
> 
> may I suggest useing OpenOffice as one test, it can eat up horrendous 
> amounts of ram in operation (I have one spreadsheet I can send you if 
> needed that takes 45min of cpu time on a Athlon64 3200 with 1G of ram just 
> to open, at which time it shows openoffice takeing more then 512M of ram)

cool, looks like they are taking the MS compatibility
really serious nowadays ...

best,
Herbert

> David Lang
> 
> -- 
> There are two ways of constructing a software design. One way is to make it 
> so simple that there are obviously no deficiencies. And the other way is to 
> make it so complicated that there are no obvious deficiencies.
>  -- C.A.R. Hoare
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