Home » Tag Archives: Benchmarking

Tag Archives: Benchmarking

Coarse-grained benchmarking

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While developing our software, we are all about metrics – even to the fact where I am pretty sure at least 10% of our posts contain a phrase “measure don’t guess”. One of those metrics we keep a close watch for is performance. Or to be more precise – the amount of extra CPU cycles we burn or the extra ...

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Java Micro-Benchmarking: How to write correct benchmarks

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Several months ago, I wrote an article to compare the performances of short indexes for loops. I asked myself of the performances using shorts as loop indexes for loop with few iterations. In Java language, all the operations on integers are made in int. Thus, if we use a short as loop index, at each iterations, a typecasting will be ...

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Performance Anxiety – on Performance Unpredictability, Its Measurement and Benchmarking

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Joshua Bloch had a great talk called Performance Anxiety (30min, via Parleys slides also available ) at Devoxx 2010, the main message as I read it was Nowadays, performance is completely non-predictable. You have to measure it and employ proper statistics to get some meaningful results. Microbenchmarking is very, very hard to do correctly. No, you misunderstand me, I mean ...

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