On 06/17/2013 04:00 PM, Joshua D. Drake wrote:
http://postgresql.1045698.n5.nabble.com/Ubuntu-12-04-3-2-Kernel-Bad-for-PostgreSQL-Performance-td5735284.html
tl;dr for that thread seems to be a driver problem (fusionIO?), I'm
unsure if Ubuntu specific or in the upstream kernel.
That instance
Good to know. I've got a few spare machines I might be able to test
3.2 kernels on in the next few months
On Thu, Jun 20, 2013 at 12:54 PM, Shaun Thomas stho...@optionshouse.com wrote:
On 06/17/2013 04:00 PM, Joshua D. Drake wrote:
On Fri, Jun 7, 2013 at 5:51 AM, Joshua D. Drake j...@commandprompt.com wrote:
On 06/06/2013 03:48 PM, Scott Marlowe wrote:
On Thu, Jun 6, 2013 at 4:35 PM, Joshua D. Drake j...@commandprompt.com
wrote:
I had the distinct displeasure of staying up entirely too late with a
customer this week
On 06/17/2013 01:34 PM, Stuart Bishop wrote:
I've since heard that 3.4 also fixes this issue as well.
What are you using for your IO on these boxes?
I was able to demonstrate it over iSCSI to a Nimble Storage SAN as well as
DAS with 2 drive RAID 1 for xlogs and 8 drive RAID 10 for data
On 06/06/13 15:35, Joshua D. Drake wrote:
I had the distinct displeasure of staying up entirely too late with a
customer this week because they upgraded to 12.04 and immediately
experienced a huge performance regression. In the process they also
upgraded to PostgreSQL 9.1 from 8.4. There
On 06/14/2013 09:12 AM, Bosco Rama wrote:
A colleague mentioned this LKML thread:
http://lkml.indiana.edu/hypermail/linux/kernel/1210.1/00725.html
Seems it was fixed in 3.9.x. I'm wonder if there is any way to easily
determine if the fix was back-ported to the various Ubunutu-maintained
Perhaps someone with a spare server floating around could install Ubuntu
LTS and run some pg-bench benchmarks with the various kernel options?
Like you, I'd have to stick to official updates for production systems.
-Toby
On 07/06/13 15:36, Nikhil G Daddikar wrote:
Folks,
This is bad news as
Hello,
I had the distinct displeasure of staying up entirely too late with a
customer this week because they upgraded to 12.04 and immediately
experienced a huge performance regression. In the process they also
upgraded to PostgreSQL 9.1 from 8.4. There were a lot of knobs to
On Thu, Jun 6, 2013 at 4:35 PM, Joshua D. Drake j...@commandprompt.com wrote:
Hello,
I had the distinct displeasure of staying up entirely too late with a
customer this week because they upgraded to 12.04 and immediately
experienced a huge performance regression. In the process they also
On 06/06/2013 03:48 PM, Scott Marlowe wrote:
On Thu, Jun 6, 2013 at 4:35 PM, Joshua D. Drake j...@commandprompt.com wrote:
Hello,
I had the distinct displeasure of staying up entirely too late with a
customer this week because they upgraded to 12.04 and immediately
experienced a huge
On 07/06/13 08:35, Joshua D. Drake wrote:
Hello,
I had the distinct displeasure of staying up entirely too late with a
customer this week because they upgraded to 12.04 and immediately
experienced a huge performance regression. In the process they also
upgraded to PostgreSQL 9.1 from 8.4.
Folks,
This is bad news as I run Ubuntu 12.04 LTS. However, my ubuntu 12.04 LTS
boxes have been updated to 3.5.0-32-generic (official update). Any
idea whether the Postgresql has problems with this kernel? I'd like to
follow the official LTS updates because I am not sure what other
surprises
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