On 28/11/17 07:40, Scott Marlowe wrote:
On Mon, Nov 27, 2017 at 11:23 AM, Don Seiler wrote:
Good afternoon.
We run Postgres (currently 9.2, upgrading to 9.6 shortly) in VMWare ESX
machines. We currently have effective_io_concurrency set to the default of
1. I'm told that the data volume is a
Hi,
On 2017-11-27 11:40:19 -0700, Scott Marlowe wrote:
> tl;dr: Only way to know is to benchmark it. I'd guess that somewhere
> between 10 and 20 is going to get the best throughput but that's just
> a guess. Benchmark it and let us know!
FWIW, for SSDs my previous experiments suggest that the sw
On Mon, Nov 27, 2017 at 10:40 AM, Scott Marlowe
wrote:
>
> Generally VMs are never going to be as fast as running on bare metal
> etc. You can adjust it and test it with something simple like pgbench
> with various settings for -c (concurrency) and see where it peaks etc
> with the setting. This
On Mon, Nov 27, 2017 at 3:44 PM, Andrew Kerber
wrote:
> Whats the guest OS? I have been able to get Oracle to perform just as
> well on Virtuals as it does on Physicals. I suspect the settings are
> pretty similar.
>
Guest OS is CentOS 6 and CentOS 7 depending on which DB host we're looking
at
Whats the guest OS? I have been able to get Oracle to perform just as well
on Virtuals as it does on Physicals. I suspect the settings are pretty
similar.
On Mon, Nov 27, 2017 at 3:06 PM, Fernando Hevia wrote:
>
>
> El 27 nov. 2017 15:24, "Don Seiler" escribió:
>
> Good afternoon.
>
> We run
El 27 nov. 2017 15:24, "Don Seiler" escribió:
Good afternoon.
We run Postgres (currently 9.2, upgrading to 9.6 shortly) in VMWare ESX
machines. We currently have effective_io_concurrency set to the default of
1. I'm told that the data volume is a RAID 6 with 14 data drives and 2
parity drives. I
On Mon, Nov 27, 2017 at 11:23 AM, Don Seiler wrote:
> Good afternoon.
>
> We run Postgres (currently 9.2, upgrading to 9.6 shortly) in VMWare ESX
> machines. We currently have effective_io_concurrency set to the default of
> 1. I'm told that the data volume is a RAID 6 with 14 data drives and 2
>
Good afternoon.
We run Postgres (currently 9.2, upgrading to 9.6 shortly) in VMWare ESX
machines. We currently have effective_io_concurrency set to the default of
1. I'm told that the data volume is a RAID 6 with 14 data drives and 2
parity drives. I know that RAID10 is recommended, just working w
