Re: Wait events monitoring future development

On Mon, Aug 8, 2016 at 04:43:40PM +0530, Amit Kapila wrote:
> > According to developers, overhead is small, but many people have doubts
> > that it can be much more significant for intensive workloads. Obviously, it
> > is not an easy task to test, because you need to put doubtfully
> > non-production ready code into mission-critical production for such tests.
> > As a result it will be clear if this design should be abandoned and we
> > need to think about less-invasive solutions or this design is acceptable.
> >
>
> I think here main objection was that gettimeofday can cause
> performance regression which can be taken care by using configurable
> knob. I am not aware if any other part of the design has been
> discussed in detail to conclude whether it has any obvious problem.

It seems asking users to run pg_test_timing before deploying to check
the overhead would be sufficient.

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Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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