On Monday, March 4, 2013 5:17:29 PM UTC-8, Gregory Szorc wrote:
> On 3/4/13 5:09 PM, Dave Mandelin wrote:
> 
> >> We already don't back back out changes for regressing a benchmark like
> >> we back them  out for regressing tests.  I think this is at least
> >> partially because a general sentiment that not all of our benchmarks
> >> correlate strongly to what they're trying to measure.
> 
> > I know this has been a hot topic lately. I think getting more clarity on 
> > this would be great, *if* of course we could have an answer that was both 
> > operationally beneficial and clear, which seems to be incredibly difficult.
> 
> > But this thread gives me a new idea. If each test run in automation had an 
> > owner (as I suggested elsewhere), how about also making the owners 
> > responsible for informing the sheriffs about what to do in case of 
> > regression? If the owners know the test is reliable and measures something 
> > important, they can ask for monitoring and presumptive backout. If not, 
> > they can ask sheriffs to ignore the test, inform and coordinate with the 
> > owning team, inform the landing person only, or some other action.
> 
> This should be annotated in the tests themselves, IMO. We could even 
> have said annotation influence the color on TBPL. 

I like it. We would need to make sure the annotations reflect active 
consideration by the test owners, but I suppose failures are likely to 
self-correct.

> IMO we should be focusing on lessening the burden on the 
> sheriffs and leaving them to focus on real problems.

Absolutely.

Dave
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