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Re: testing HS/SR - 1 vs 2 performance

Simon Riggs <simon@2ndquadrant.com>

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From: Simon Riggs <simon@2ndQuadrant.com>
To: Erik Rijkers <er@xs4all.nl>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>, Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>, pgsql-hackers@postgresql.org
Date: 2010-04-26T07:43:09Z
Lists: pgsql-hackers 
On Sun, 2010-04-25 at 23:52 +0200, Erik Rijkers wrote:

> I'll try to repeat this pattern on other hardware; although
> if my tests were run with faulty hardware I wouldn't know how/why
> that would give the above effect (such a 'regular aberration').

> testing is more difficult than I thought...

Thanks again for your help.

Please can you confirm:
* Are the standby tests run while the primary is completely quiet?
* What OS is this? Can we use dtrace scripts?

Can anyone else confirm these test results: large scale factor and small
number of sessions?

-- 
 Simon Riggs           www.2ndQuadrant.com