Comments for The PerfMon Blog

Comment on Webmetrics API plug-in for Nagios by poisonbit

poisonbit — Sun, 20 Jun 2010 16:58:52 +0000

Thanks for sharing !!!!

A little comment about:

- new XML::Simple;
+ XML::Simple->new;

As a better code practice, pointless in this script

Comment on MobileMe or: How I Learned to Stop Worrying and Love the Load Test by Tyler Fullerton

Tyler Fullerton — Tue, 05 Aug 2008 21:08:08 +0000

Hi Thierry32, thank you for the comment! I think all companies start out with good intentions to load test as part of a release. Often times I find that companies are more than willing to forgo the load test (or at least scale them back due to costs or budget).

In the case of Apple, it seems that they may have scaled back the scope of their load testing due to all the releases that were coming out along with MobileMe (see: http://www.tuaw.com/2008/08/05/ars-jobs-agrees-mobileme-not-up-to-apples-standards/).

One of the worst reactions to have to deadlines or cost boundaries is to scale back a load test (by either reducing the amount of load or using tools that don’t accurately represent end users). The first problem with doing this is that you’re not testing your site with the original specifications in mind, which most likely will not load up your site with the required traffic. The second problem is that usually a crippled load test (to meet costs or deadline) will leave a bad taste in the mouth of the tester and may prevent them from testing in the future.

Comment on MobileMe or: How I Learned to Stop Worrying and Love the Load Test by thierry32

thierry32 — Mon, 04 Aug 2008 21:34:34 +0000

Thank you for the insight. I would be surprised if Apple did not perform any sort of load testing of the MobileMe application. In your experience do you think that companies generally are neglecting to load test or are using tools that do not properly simulate real load?