[Cdash] Performance Issues

Bill Lorensen bill.lorensen at gmail.com
Thu Mar 6 19:53:22 UTC 2008


Would it be possible to run cdash on another machine? Especially early
in its development, it's hard to assess performance on a heavily
loaded machine. I remember that early Dart2 performance problems were
not Dart2 issues but rather other loads on the system we were using.
Perception is sometimes more influential than reality.


On Thu, Mar 6, 2008 at 11:44 AM, Julien Jomier
<julien.jomier at kitware.com> wrote:
> Bill,
> Thanks a lot for the report. This is really helpful.
> I'm working on these issues. There is a part of tuning, but also a part
> of Dart1 rollup that is using a lot of CPU on public.kitware. This
> latter should go away when we stop using Dart1. As you know, we are
> running a lot of services off of public.
> I'm keeping an eye on these issues.
> Julien
> Bill Lorensen wrote:
> > As suggested earlier, I've started to add performance issues to the
> > bug tracker. It might be helpful if each page showed the generation
> > time at the bottom of the page (like on the main dashboard page).
> > Right now I use the one elephant, two elephant technique.
> >
> > I find the overall feel of the ITK dashboard to be sluggish in
> > general. A mid-day dashboard view of ITK usually takes over 5 seconds.
> > The Cmake dashboard is very responsive, but CMake has a small number
> > of tests compared to ITK.
> >
> > I am not a expert, but these performance issues probably have to do
> > with database tuning, index selection, batching queries, etc. I
> > remember back in the GE CRD Frost days, that Dan Blezek did a lot of
> > tweaking early on. I think he also built some page mechanisms.
> >
> > I know CDash is still in beta, but I think performance improvement
> > should be the top priority. Early impressions are important.
> >
> > Bill
> > _______________________________________________
> > Cdash mailing list
> > Cdash at public.kitware.com
> > http://public.kitware.com/cgi-bin/mailman/listinfo/cdash
> >

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