Postgres Pro
Downloads
Home   >   mailing lists

Re: Parallel Select query performance and shared buffers - Mailing list pgsql-hackers

From Claudio Freire
Subject Re: Parallel Select query performance and shared buffers
Date
Msg-id CAGTBQpa+J-kxsmqSeLfbXoJr9ExP8e7-W3H_aLxbd=XXHAf_Vw@mail.gmail.com
Whole thread Raw
In response to Re: Parallel Select query performance and shared buffers  (Metin Doslu <metin@citusdata.com>)
List pgsql-hackers
Tree view 
On Thu, Dec 5, 2013 at 1:03 PM, Metin Doslu <metin@citusdata.com> wrote:
>> From what I've seen so far the bigger problem than contention in the
>> lwlocks itself, is the spinlock protecting the lwlocks...
>
> Postgres 9.3.1 also reports spindelay, it seems that there is no contention
> on spinlocks.


Did you check hugepages?

pgsql-hackers by date:

Previous
From: Josh Berkus
Date:
Subject: Re: Why we are going to have to go DirectIO
Next
From: Stephen Frost
Date:
Subject: Re: Re: [RFC] Shouldn't we remove annoying FATAL messages from server log?