Re: Optimize Arm64 crc32c implementation in Postgresql

Поиск
Список
Период
Сортировка
От Thomas Munro
Тема Re: Optimize Arm64 crc32c implementation in Postgresql
Дата
Msg-id CAEepm=3aEgkBmuGP6qkvWvnzHZYVKwgEC+enZ6oqnG7eZo3=Rg@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Optimize Arm64 crc32c implementation in Postgresql  (Heikki Linnakangas <hlinnaka@iki.fi>)
Список pgsql-hackers
On Wed, Apr 4, 2018 at 4:38 AM, Heikki Linnakangas <hlinnaka@iki.fi> wrote:
> [armv8-crc32c-2.patch]

This tests OK on my Debian buster aarch64 system (the machine that
runs "eelpout" in the buildfarm), configure tests as expected and I
confirmed that pg_comp_crc32c_armv8 is reached at runtime.

I hope we can figure out a more portable way to detect the
instructions, or failing that a way to detect them on FreeBSD in
userspace.  I'll try to send a patch for PG12 if I get a chance.

No opinion on the unaligned memory access question.

-- 
Thomas Munro
http://www.enterprisedb.com


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Andrew Dunstan
Дата:
Сообщение: Re: [HACKERS] logical decoding of two-phase transactions
Следующее
От: Tomas Vondra
Дата:
Сообщение: Re: Online enabling of checksums