Re: Regular Performance Testing

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On Mon, Aug 29, 2016 at 12:34:28PM -0400, Shyam wrote:
> On 08/29/2016 08:25 AM, Nigel Babu wrote:
> > On Mon, Aug 29, 2016 at 01:49:52PM +0200, Niels de Vos wrote:
> > > On Mon, Aug 29, 2016 at 05:01:18PM +0530, Nigel Babu wrote:
> > > > Hello folks,
> > > >
> > > > I've had chats with Manoj and Ambarish about performance testing and what we
> > > > can do upstream. Niels today solved half my problem by pointing out that we can
> > > > get physical nodes on CentOS CI. The general idea is to run iozone[1] and
> > > > smallfile[2] on a fixed frequency for master (to begin with).
> > > >
> > > > Does this sound like a good idea? If so, read on.
> > > >
> > > > For this to happens a few things need to happen:
> > > > * I'll need some help from a few people who can read the reports and coordinate
> > > >   fixes. That is, someone needs to "own" performance for upstream.
> > > > * I need some help in generating the right reports so we can figure out if our
> > > >   performance went up or down.
>
> I volunteer for both of the above.
>
> > >
> > > The provisioning in the CentOS CI does not allow us to select certain
> > > systems (yet). So you would get different performance results, depending
> > > on the hardware that the reservation request returns:
> > >   https://wiki.centos.org/QaWiki/PubHardware
> > >
> > > Also, these physical machines do not have additional disks. The single
> > > SSD that these systems have, is completely used by the installation, no
> > > free space to partition to our liking, no additional disks available.
> > >
> > > I welcome any additional testing that we can run regulary, but to call
> > > it 'performance testing' might be a little pre-mature. At least the
> > > performance results should be marked as 'unoptimized' or similar.
> > >
> > > HTH,
> > > Niels
> > >
> >
> > The goal of this testing, to begin with, wouldn't be to get absolute numbers
> > but to try and catch decrease in performance, if that makes sense. In essence,
> > it's regression testing but for performance.
> >
> > Thank you for raising the fact that it may be inconsistent, I'll talk to the
> > Centos CI folks and see what's the best way forward for us before we get here.
> > But let's work with the assumption that I'll sort out the infra side of things.
>
> I had the same concern as Niels, but as long as we can sort out the infar
> side of things (which we can in parallel to building this up), I see that
> this would be valuable.

Thank you Shyam. I'll sort out the infra depdencies and get back when we can
have things running.


--
nigelb
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