Re: Some performance testing?

Поиск
Список
Период
Сортировка
От Michael Nolan
Тема Re: Some performance testing?
Дата
Msg-id CAOzAquKKV0QisQZ9bUDXkepm5C-Vj0oi4CVG3zjFxNQC-562Tg@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Some performance testing?  (Josh Berkus <josh@agliodbs.com>)
Ответы Re: Some performance testing?  ("Wes Vaske (wvaske)" <wvaske@micron.com>)
Список pgsql-performance


On Wed, Apr 8, 2015 at 3:05 PM, Josh Berkus <josh@agliodbs.com> wrote:
On 04/07/2015 11:07 AM, Mel Llaguno wrote:
> Care to elaborate? We usually do not recommend specific kernel versions
> for our customers (who run on a variety of distributions). Thanks, M.

You should.

http://www.databasesoup.com/2014/09/why-you-need-to-avoid-linux-kernel-32.html

Performance is literally 2X to 5X different between kernels.

 
Josh, there seems to be an inconsistency in your blog.  You say 3.10.X is safe, but the graph you show with the poor performance seems to be from 3.13.X which as I understand it is a later kernel.  Can you clarify which 3.X kernels are good to use and which are not?
--
Mike Nolan

В списке pgsql-performance по дате отправления:

Предыдущее
От: Mel Llaguno
Дата:
Сообщение: Re: Some performance testing?
Следующее
От: "Graeme B. Bell"
Дата:
Сообщение: Re: Some performance testing?