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Monday, 31 August 2009The Problem With Benchmarks
Sometime around the early 90's I started noticing that major companies like Microsoft and Oracle started adding provisions to the EULA's stating that the licenses forbade users from publishing benchmarks about the product. Evil Big Brother implications aside, I now am beginning to at least see why they think it is a good idea.
The fact of the matter is benchmarking today's web based computer software is almost impossible. In past years, the software was easier to isolate and the number of variables could be controlled so that a useful metric could be produced for buyers to be able to compare two similar products. Today however, when software is increasingly being deployed on the web, there are too many moving parts that have to be taken into consideration. In any modern web application web servers, database servers, third party APIs and the network all have to be factored in when benchmarking an application. Any one of these not functioning correctly could cause your benchmarks to report false data. Ga door met lezen van "The Problem With Benchmarks"
Geplaatst door Cal Evans
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Tags voor deze bijdrage: benchmarks, performance
Wednesday, 19 August 2009Staying Current
Ray Kurzweil, in his book "The Singularity Is Near: When Humans Transcend Biology" talks about the increasing pace of change in technology. Anyone who is a manager in an IT department doesn't need Mr. Kurzweil to explain this to them. IT managers live with the reality that they must not only keep up with new technologies that affect their departments but keep up with changes within the technologies they currently use. To bring it home, managers of PHP development teams have to keep up with the changes that happened in PHP 5.3 recently as well as new services from Amazon and Google while trying to fit the forward looking things like Google Wave and PubSubHubBub in there as well. With all of this information being thrown at managers these days, how are you supposed to keep up?
The simple answer is: let others do it for you. There are two ways to do that. Ga door met lezen van "Staying Current" Monday, 10 August 2009A look at the PHP job market
Last week, Cal Evans had an interesting post on this blog about an EDC study on the popularity of programming languages. In the comment section of that post, I had an interesting discussion with Bill Karwin, who suggested that when looking at the job market, PHP still seems less popular than other languages. It is not a surprise that Java and .NET have more jobs, considering they are general purpose languages while PHP's focus is on the web alone.
Later that week, I stumbled across an interesting press release by CV Screen on the job market in the UK. I'm not sure how easily this report translates to the rest of the world (comments are welcome), but since I can see similar trends in other countries, I thought I'd share it nonetheless. Ga door met lezen van "A look at the PHP job market" Tuesday, 4 August 2009PHP Rated Top Scripting Language by Evans Data Corp
In their recently released report "Users' Choice: Scripting Language Ratings", Evans Data Corporation (no relation to the author of this article) gave PHP the highest overall ranking of the languages they included in their survey.
The full EDC report can be downloaded here (requires free registration). Talking with 500 developers who actively use scripting languages, EDC ranked the languages on the following criteria. For each category, we've listed how PHP fared:
Ga door met lezen van "PHP Rated Top Scripting Language by Evans Data Corp"
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