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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Benchmarking code

Posted by dabbler (leah), 18 October 2006
I find there's not only "a function to do that" in PHP, there are multiple ways of doing things. To work out the most efficient function for a task, I'd like to benchmark the different options.

A quick google gave me several ways of benchmarking. Ordered by my opinion of which looks easiest to work with on a regular basis.  




Is any one better than the other or is there a better alternative?

Posted by admin (Graham Ellis), 20 October 2006
Hmmm ... I don't know, Leah (which is why I've given a while for others to answer befor I jumped in), but I've had a look at the first couple of links at least and I see they're using "microtime".   That slightly concerns me as it's taking about elapsed time and not cpu time; you'll get results that vary depending on how busy the server is.   So comparisons between differing methods would ONLY be valid if both tests are run on a similarly loaded server.

Posted by dabbler (leah), 21 October 2006
Thanks Graham, I didn't realise the difference so I'll have a look for different ways to do this.

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