| From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
|---|---|
| To: | Josh Berkus <josh(at)agliodbs(dot)com> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>, Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>, "Graeme B(dot) Bell" <grb(at)skogoglandskap(dot)no> |
| Subject: | Re: Turn off Hyperthreading! WAS: 60 core performance with 9.3 |
| Date: | 2014-08-21 21:26:24 |
| Message-ID: | CAOR=d=3RKfeHLqib-a-PmGMUuvrPQi8KFAVEi-7K4nm46P7m2g@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Thu, Aug 21, 2014 at 3:02 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
> On 08/20/2014 07:40 PM, Bruce Momjian wrote:
>
>> I am also
>> unclear exactly what you tested, as I didn't see it mentioned in the
>> email --- CPU type, CPU count, and operating system would be the minimal
>> information required.
>
> Ooops! I thought I'd posted that earlier, but I didn't.
>
> The processors in question is the Intel(R) Xeon(R) CPU E7- 4850, with 4
> of them for a total of 40 cores or 80 HT cores.
>
> OS is RHEL with 2.6.32-431.3.1.el6.x86_64.
I'm running almost the exact same setup in production as a spare. It
has 4 of those CPUs, 256G RAM, and is currently set to use HT. Since
it's a spare node I might be able to do some testing on it as well.
It's running a 3.2 kernel right now. I could probably get a later
model kernel on it even.
--
To understand recursion, one must first understand recursion.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Scott Marlowe | 2014-08-21 21:43:31 | Re: Turn off Hyperthreading! WAS: 60 core performance with 9.3 |
| Previous Message | Bruce Momjian | 2014-08-21 21:26:17 | Re: Turn off Hyperthreading! WAS: 60 core performance with 9.3 |