| From: | Michael Nolan <htfoot(at)gmail(dot)com> |
|---|---|
| To: | Josh Berkus <josh(at)agliodbs(dot)com> |
| Cc: | Mel Llaguno <mllaguno(at)coverity(dot)com>, Przemysław Deć <przemyslaw(dot)dec(at)linuxpolska(dot)pl>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Some performance testing? |
| Date: | 2015-04-08 22:09:05 |
| Message-ID: | CAOzAquKKV0QisQZ9bUDXkepm5C-Vj0oi4CVG3zjFxNQC-562Tg@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Wed, Apr 8, 2015 at 3:05 PM, Josh Berkus <josh(at)agliodbs(dot)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
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Graeme B. Bell | 2015-04-09 09:04:08 | Re: Some performance testing? |
| Previous Message | Mel Llaguno | 2015-04-08 21:29:49 | Re: Some performance testing? |