Re: testing HS/SR - 1 vs 2 performance - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: testing HS/SR - 1 vs 2 performance
Date
Msg-id 1271831956.8305.26815.camel@ebony
Whole thread Raw
In response to Re: testing HS/SR - 1 vs 2 performance  (Mark Kirkwood <mark.kirkwood@catalyst.net.nz>)
List pgsql-hackers
On Wed, 2010-04-21 at 15:09 +1200, Mark Kirkwood wrote:

> I did some testing of this patch (v2). Unfortunately I don't have access 
> to hardware capable of doing tests at the same scale as Erik used. 
> However I was still able to show a consistent difference (I think) 
> between standby performance with and without the patch applied.

...

> Overall looks like the patch gets standby read only performance close to 
> the master - at least in the case where there are minimal master 
> transactions being tracked by the standby (I had to leave the master 
> idle whilst running the standby case, as they shared the machine). Hope 
> this info is useful.

Thanks very much for the report; always good to get confirmation.

-- Simon Riggs           www.2ndQuadrant.com



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