Re: More speedups for tuple deformation

Поиск
Список
Период
Сортировка
От John Naylor
Тема Re: More speedups for tuple deformation
Дата
Msg-id CANWCAZabO1oj+khF+YNVpmkTQwRRyNJesbsBhRFL5emZJh3tow@mail.gmail.com
обсуждение исходный текст
Ответ на Re: More speedups for tuple deformation  (Andres Freund <andres@anarazel.de>)
Ответы Re: More speedups for tuple deformation
Список pgsql-hackers
On Tue, Feb 3, 2026 at 7:33 AM Andres Freund <andres@anarazel.de> wrote:
> It's somewhat scary to see this level of code size increase in a case where
> the compiler really has no information to think vectorizing really is
> beneficial...

I tried building on gcc 15.2 with -fno-tree-loop-vectorize, and the
server .text segment was only 5kB smaller, but that may understate the
impact on the decisions that get made. Maybe it's better to opt in for
unrolling and vectorization? I think this option also controls whether
to turn loops into libc memset/memmove etc calls.

--
John Naylor
Amazon Web Services



В списке pgsql-hackers по дате отправления: