Re: logtape.c stats don't account for unused "prefetched" block numbers

Поиск
Список
Период
Сортировка
От Jeff Davis
Тема Re: logtape.c stats don't account for unused "prefetched" block numbers
Дата
Msg-id 0383d21d58c6fd7d2426d7730c50c6743a5ba303.camel@j-davis.com
обсуждение исходный текст
Ответ на Re: logtape.c stats don't account for unused "prefetched" block numbers  (Peter Geoghegan <pg@bowt.ie>)
Список pgsql-hackers
Дерево обсуждения 
On Sat, 2020-09-05 at 12:03 -0700, Peter Geoghegan wrote:
> We should totally disable the preallocation stuff for external sorts
> in any case. External sorts are naturally characterized by relatively
> large, distinct batching of reads and writes -- preallocation cannot
> help.

Patch attached to disable preallocation for Sort.

I'm still looking into the other concerns.

Regards,
    Jeff Davis
Вложения

В списке pgsql-hackers по дате отправления:

Предыдущее
От: James Coleman
Дата:
Сообщение: Re: [DOC] Document concurrent index builds waiting on each other
Следующее
От: James Coleman
Дата:
Сообщение: Re: PROC_IN_ANALYZE stillborn 13 years ago