In 1999, I accepted a programming job with a company selling voicemail service. When it came time for the boss to demo the company’s product for me in full, he wanted to show me some feature that needed my PIN to be entered. Rather than having me enter it, he turned to his [...]
February 27, 2009 – 16:54
The First Rule of Program Optimization: Don’t do it.
The Second Rule of Program Optimization (for experts only!): Don’t do it yet.”
- Michael A. Jackson
If you spend much time with people who have any involvement with software development, you’re going to run across a conversation about optimizing software. Either the program is too big or [...]
February 16, 2009 – 16:21
Near its end, the CyberPenguin case study mentions the discovery of “some small accounting inaccuracies”. To be exact, users were occasionally being double-charged for sessions.
If you’ve done much software development, that statement alone should be enough to have you thinking “concurrency issue” or, more specifically, “race condition”. Given that the application involved both [...]
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