On 21/01/13 17:24, Elena Korolkova wrote:
> Hello
>
> Sheffield has availability above 95% in nagios tests and atlas analysis for every month during this 2012 (and in 2010 and 2011 as well).
> In quarter reports there is a parameter "Average SLL untargeted ATLAS test performance (UK test)" which is 87% for Sheffield for the last Quarter.
> I'm wondering what does this parameter reflect?
>
It tests how well WMS jobs run at the site. To do this, it submits jobs
to the WMS targeting the UK, but not any particular site. Jobs that the
WMS brokers to a site will then end up in this statistic.
Whilst ATLAS now have other mechanisms, this should reflect how other
VOs that rely on the WMS see your site if jobs get brokered there.
To get a VO perception, one needs to convolute that with number of jobs
that actually get brokered to a site, but none the less poor performance
here is probably one of the reasons t2k.org are suffering|at the moment.
> AFAIR there was already discussion on this topic but "Average SLL
> untargeted ATLAS test performance (UK test)" is still in Quarter
> reports.
Wearing my "other VOs" hat, I think that whilst atlas might not be the
right VO, it's probably as good as any other - and until we recommend
another method to small VOs, we should keep this metric.
Wearing my QMUL hat, I can only apologise - we need to get better - the
rather rushed EMI transition probably caused some of the problems, and
took our eye off the others.
Chris
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