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diff --git a/collectors/idlejitter.plugin/README.md b/collectors/idlejitter.plugin/README.md new file mode 100644 index 000000000..3c2080536 --- /dev/null +++ b/collectors/idlejitter.plugin/README.md @@ -0,0 +1,13 @@ +## idlejitter.plugin + +It works like this: + +A thread is spawn that requests to sleep for 20000 microseconds (20ms). +When the system wakes it up, it measures how many microseconds have passed. +The difference between the requested and the actual duration of the sleep, is the idle jitter. +This is done at most 50 times per second, to ensure we have a good average. + +This number is useful: + + 1. in real-time environments, when the CPU jitter can affect the quality of the service (like VoIP media gateways). + 2. in cloud infrastructure, at can pause the VM or container for a small duration to perform operations at the host. |