Re: New WAL record to detect the checkpoint redo location

Поиск
Список
Период
Сортировка
От Robert Haas
Тема Re: New WAL record to detect the checkpoint redo location
Дата
Msg-id CA+TgmoZ721J=7kbpRZEBB=rKo7JE8KTh8O8vXapo-teTVYKwDg@mail.gmail.com
обсуждение исходный текст
Ответ на Re: New WAL record to detect the checkpoint redo location  (Andres Freund <andres@anarazel.de>)
Ответы Re: New WAL record to detect the checkpoint redo location  (Andres Freund <andres@anarazel.de>)
Список pgsql-hackers
On Thu, Oct 5, 2023 at 2:34 PM Andres Freund <andres@anarazel.de> wrote:
> If I add an unlikely around if (rechdr->xl_rmid == RM_XLOG_ID), the
> performance does improve. But that "only" brings it up to 322.406. Not sure
> what the rest is.

I don't really think this is worth worrying about. A sub-one-percent
regression on a highly artificial test case doesn't seem like a big
deal. Anybody less determined than you would have been unable to
measure that there even is a regression in the first place, and that's
basically everyone.

--
Robert Haas
EDB: http://www.enterprisedb.com



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Jeff Davis
Дата:
Сообщение: Re: Pre-proposal: unicode normalized text
Следующее
От: Michał Kłeczek
Дата:
Сообщение: Re: FDW LIM IT pushdown