Re: Tracking wait event for latches

On Wed, Sep 28, 2016 at 9:35 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Tue, Sep 27, 2016 at 8:39 PM, Thomas Munro
> <thomas(dot)munro(at)enterprisedb(dot)com> wrote:
>> Ok, if they really are independent then shouldn't we take advantage of
>> that at call sites where we might be idle but we might also be waiting
>> for the network?
>
> I certainly didn't intend for them to be independent, and I don't
> think they should be. I think it should be a hierarchy - as it is
> currently. I think it's a bad idea to introduce the notational
> overhead of having to pass through two integers rather than one
> everywhere, and a worse idea to encourage people to think of the
> wait_event_type and wait_event are related any way other than
> hierarchically.

So should I change back the patch to have only one argument for the
eventId, and guess classId from it?
--
Michael