Re: Patch: add timing of buffer I/O requests

On Thu, Mar 22, 2012 at 7:38 PM, Ants Aasma <ants(at)cybertec(dot)at> wrote:
> On Wed, Mar 21, 2012 at 5:01 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>> This seems to have bitrotted again.  :-(
>>
>> Can you please rebase again?
>
> Rebased.

I've committed the core of this. I left out the stats collector
stuff, because it's still per-table and I think perhaps we should back
off to just per-database. I changed it so that it does not conflate
wait time with I/O time. Maybe there should be a separate method of
measuring wait time, but I don't think it's a good idea for the
per-backend stats to measure a different thing than what gets reported
up to the stats collector - we should have ONE definition of each
counter. I also tweaked the EXPLAIN output format a bit, and the
docs.

--
Robert Haas
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