The #webperf prayer

"Steve Souders who art in Google,
hallowed be thy name.
Thy books did come,
whose rules we run,
on our sites as it was at Yahoo.

Give us each request our cache-control headers,
and forgive us our static cookies,
as we compress those who request against us,
And lead us not into CSS Expressions,
but deliver us from Universal Selectors.

For thine is the ySlow,
the PageSpeed and the Smush.it
(ok… Stoyan and Stubbornella)

for ever and ever.

Heck yeah!"

Comments

Alexa has performance rankings too!

I must confess that this one had slipped past me… I wasn’t aware that Alexa was now offering performance rankings as well! Alexa now shows an “average load time” as well as a “comparitive ranking” (i.e. 51% of sites are slower). Interesting data for your next website analysis! It’s worth noting that the quoted “1.404 seconds” is about the same as the “repeat view” measurement webpagetest.org (testing from the UK node shows that www.johnlewis.com takes about 7.2 seconds to load with an empty cache, and 1.6 seconds with a primed cache, median values over 5 runs). Presumably this is an average across all Alexa toolbar users, on all johnlewis.com pages (large and small) with empty and primed caches.

Load Testing Case Study

Since we are talking about presentations here is another one I did for the Load Testing Expo in 2009. It’s a case study of how we did the performance testing for an internet-facing content/community/jobs site. Test Expo 2009 Site Confidence & Seriti Consulting Load Test Case Study View more presentations from Stephen Thair .

So what else does Operations do? Well, there is a whole organisation run by the UK govermnent to help answer that question! ITIL , or the IT Infrastructure Library, is a library of best practice information that basically tells you everything you need to do to run an IT department. Similarly developers have development methodologies such as RAD, JAD, Agile/XP, and Project Managers have PM methodologies such as Prince 2, PMBok etc to cover off their areas in more specific detail. ITIL breaks it down into 7 key areas: Service Support - deals with the actual provision of IT services such as the service (help) desk, incident management, problem management, release management etc Service Delivery - deals with ensuring that you can continue to DELIVER the service support functions with things like contigency planning, capacity management, service levels etc The Business Perspective - helps to ensure that the IT function is aligned with the organisation's business strategy and that how to...

The Operations Manager

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