Re: Patch: add timing of buffer I/O requests
От | Greg Stark |
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Тема | Re: Patch: add timing of buffer I/O requests |
Дата | |
Msg-id | CAM-w4HPCKGTrY5p7Hgp-z8GvgxDNAzRk7oNevsXEBu-N6atp+g@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Patch: add timing of buffer I/O requests (Robert Haas <robertmhaas@gmail.com>) |
Ответы |
Re: Patch: add timing of buffer I/O requests
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Список | pgsql-hackers |
On Tue, Mar 27, 2012 at 7:58 PM, Robert Haas <robertmhaas@gmail.com> wrote: > 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. Maybe I missed some earlier discussoin -- I've been having trouble keeping up with the lists. But was there discussion of why this is a GUC? Why not just another parameter to EXPLAIN like the others? i.e. EXPLAIN (ANALYZE, BUFFERS, IOTIMING) -- greg
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