pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Bruce Momjian <bruce@momjian.us>
To: Ryan Johnson <ryan.johnson@cs.utoronto.ca>
Cc: pgsql-performance@postgresql.org
Subject: Re: SSI slows down over time
Date: Wed, 9 Apr 2014 17:21:05 -0400
Message-ID: <20140409212105.GF8686@momjian.us> (raw)
In-Reply-To: <5342B87C.9090908@cs.utoronto.ca>
References: <5340BB09.5010101@cs.utoronto.ca>
	<5342B87C.9090908@cs.utoronto.ca>
List-Unsubscribe:  <mailto:majordomo@postgresql.org?body=unsub%20pgsql-performance>

On Mon, Apr  7, 2014 at 10:38:52AM -0400, Ryan Johnson wrote:
> The two * entries were produced by runs under SI, and confirm that
> the rest of the system has not been slowing down nearly as much as
> SSI. SI throughput dropped by 5% as the database quadrupled in size.
> SSI throughput dropped by 23% during the same interval. And this was
> actually one of the better sets of runs; I had a few last week that
> dipped below 1ktps.
> 
> I'm not sure what to make of this, thoughts?

Seems it is time to ask on hackers.

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + Everyone has their own god. +


-- 
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance



view thread (15+ messages)  latest in thread

Message-ID: <20140409212105.GF8686@momjian.us>
Permalink:  ../20140409212105.GF8686@momjian.us/
Also on:    postgresql.org/message-id/20140409212105.GF8686@momjian.us

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: bruce@momjian.us, ryan.johnson@cs.utoronto.ca
  Subject: Re: SSI slows down over time
  In-Reply-To: <20140409212105.GF8686@momjian.us>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox