Monday Jan 15, 2007

DTrace - (ab)using aggregations to expose other data

One restriction when using the Java DTrace API is that the only data type that can be collected on demand by a DTrace client is the aggregation.[Read More]

Friday Oct 20, 2006

DTrace and moving/rolling averages

A client asked me the other day if DTrace could be used to maintain a moving average...

DTrace has very powerful built-in support for various kinds of aggregations, including the support for maintaining an average value, But it doesn't have direct support for maintaining a moving average. Here's how to do it...[Read More]

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