Month: February 2015
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Chase down that bug
If there are rules for software development, one of them should be never let a bug go unsquashed. This has been demonstrated to me again this week – when I had a bug in some Microblaze interrupt code. I realised I no longer needed to use the code and then puzzled over whether to find […]
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Struggling to return to form
Last October I ran in the Royal Parks Half Marathon – with the aim of finishing in under two hours. By the time I got to the final mile it was obvious I was not going to make that, but I was actually doing quite well – and then my legs buckled and I sort […]
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Hard fault count drives performance
Just to emphasise how hard faults are determining for performance – here is a plot of hard faults versus page count for the same application mentioned in the previous post. The pattern is very similar, though it should be noted that increasing the page count does still keep the fault count coming down at the […]
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How much memory do you need?
What’s the best way to speed up your computing experience? As many know the most cost-effective way is often not to buy a new computer with a faster processor but to add more memory to an existing system. The plot below, based on some results from my PhD research shows just how this works… In […]
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Why stop at twelve?
View image | gettyimages.com There is an election coming in Britain and so politicians are setting out their stalls. Education Secretary Nicky Morgan has now said that her priority will be a “war on innumeracy” and an insistence that children who leave primary schools should know their “twelve times tables”. But why 12? Until […]
cartesian product ... stuff about computing mostly 