Wasting time by saving memory

You might say that at my company, the hard ware is 10x more expensive, but it also likely you time…

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Java Intrinsics and Performance

The original question was How to count the number of 1’s a number will have in binary? I included a…

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Java Hidden code

Sometime ago I came across the issue of invisible characters in Strings. These can really cause confusion because they are…

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Java memes which refuse to die

Also titled; My pet hates in Java coding.  There are a number of Java memes which annoy me, partly because…

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Odd practices in Java

Overview There are a number of practices in Java which oddly baffle me. Here are but a few. Using -Xmx…

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Latency, Throughput and Degree of Concurrency

chrisapotek asked. How do you define throughput and latency for your test? There is not a simple question, so I…

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Why Math.round(0.499999999999999917) rounds to 1 on Java 6

Overview There are two types of error representation error and arithmetic rounding error which are common in floating point calculations.…

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Quotes relating to System Design

There are a few quotes I think of when thinking about computer design. These are not specifically about computers, but…

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High performance libraries in Java

There is an increasing number of libraries which are described as high performance and have benchmarks to back that claim…

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