Messages in this thread | | | Date | Wed, 23 Dec 2009 08:53:09 +0100 | From | Ingo Molnar <> | Subject | Re: workqueue thing |
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* Jeff Garzik <jeff@garzik.org> wrote:
> On 12/23/2009 01:02 AM, Ingo Molnar wrote: > >One key thing i havent seen in this discussion are actual measurements. I > >think a lot could be decided by simply testing this patch-set, by looking at > >the hard numbers: how much faster (or slower) did a particular key workload > >get before/after these patches. > > We are dealing with situations where drivers are using workqueues to > provide a sleep-able context, and trying to solve problems related > to that. > > "faster or slower?" is not very relevant for such cases.
Claims to performance were made though, so it's a valid question.
But it's not the only effect, which is why i continued my email with the issue you raised:
> > Likewise, if there's a reduction in complexity, that is a tangible metric > > as well: lets do a few conversions as part of the patch-set and see how > > much simpler things have become as a result of it. > > > > We really are not forced to the space of Gedankenexperiments here.
Thanks,
Ingo
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