Hi
On 09/18/2012 09:44 AM, Andrea Suisani wrote:
> On 09/14/2012 10:45 AM, Daniel Farina wrote:
>> On Fri, Sep 14, 2012 at 12:40 AM, Nikolay Ulyanitsky <lystor@gmail.com> wrote:
>>> Hi
>>> I compiled the 3.6-rc5 kernel with the same config from 3.5.3 and got
>>> the 15-20% performance drop of PostgreSQL 9.2 on AMD chipsets (880G,
>>> 990X).
>
> [cut]
>
>>> Kernel config - http://pastebin.com/cFpg5JSJ
>>>
>>> Any ideas?
>>
>> Did you tell LKML? It seems like a kind of change that could be found
>> using git bisect of Linux, albiet laboriously.
>
>
> just a pointer to LKML thread:
>
> https://lkml.org/lkml/2012/9/14/99
[cut]
today Jonathan Corbet has posted a good write-up on lwn.net
"How 3.6 nearly broke PostgreSQL"
http://lwn.net/SubscriberLink/518329/672d5c68286f9c18/
this is definitely a worth reading piece.
Andrea
