Re: Memory Accounting v11
От | Atri Sharma |
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Тема | Re: Memory Accounting v11 |
Дата | |
Msg-id | CAOeZVidFijTeOXBFXoc+LzSaeARRew7cPGK8tjwLxM0xaNLYBg@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Memory Accounting v11 (Jeff Davis <pgsql@j-davis.com>) |
Ответы |
Re: Memory Accounting v11
|
Список | pgsql-hackers |
On Wed, Jul 15, 2015 at 12:57 PM, Jeff Davis <pgsql@j-davis.com> wrote:
On Tue, 2015-07-14 at 16:19 -0400, Robert Haas wrote:
> tuplesort.c does its own accounting, and TBH that seems like the right
> thing to do here, too. The difficulty is, I think, that some
> transition functions use an internal data type for the transition
> state, which might not be a single palloc'd chunk. But since we can't
> spill those aggregates to disk *anyway*, that doesn't really matter.
So would it be acceptable to just ignore the memory consumed by
"internal", or come up with some heuristic?
Regards,
Jeff Davis
I think a heuristic would be more suited here and ignoring memory consumption for internal types means that we are not making the memory accounting useful for a set of usecases.
--
Regards,
Atri
l'apprenant
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