Re: spinlocks on powerpc

Поиск
Список
Период
Сортировка
От Manabu Ori
Тема Re: spinlocks on powerpc
Дата
Msg-id CADWW1HGMPf2+21JkU7AXcXEYhY8ASZW8E=B1JwPnRb5-5MzJSg@mail.gmail.com
обсуждение исходный текст
Ответ на Re: spinlocks on powerpc  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
By the way...

2012/1/2 Tom Lane <tgl@sss.pgh.pa.us>
> (It's depressing that these numbers have hardly moved since August ---
> at least on this test, the work that Robert's done has not made any
> difference.)

I merged some results and created another graph.
Please find an attached png file and you'll see obvious
performance improvement...

All the results are run on the same system:
  Power 750 (32 physical cores, virtually 128 cores using SMT4)
  mem: 256GB
  OS: RHEL6.1 kernel 2.6.32-131.0.15.el6.ppc64
  gcc version 4.4.5 20110214 (Red Hat 4.4.5-6)

Вложения

В списке pgsql-hackers по дате отправления:

Предыдущее
От: Simon Riggs
Дата:
Сообщение: Re: ALTER TABLE lock strength reduction patch is unsafe
Следующее
От: Tom Lane
Дата:
Сообщение: Re: ALTER TABLE lock strength reduction patch is unsafe