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Worth watching is How NOT to Measure Latency: https://www.youtube.com/watch?v=lJ8ydIuPFeU https://www.youtube.com/watch?v=lJ8ydIuPFeU The speaker Gil Tene is a
by latch 8y ago
Worth watching is How NOT to Measure Latency: https://www.youtube.com/watch?v=lJ8ydIuPFeU https://www.youtube.com/watch?v=lJ8ydIuPFeU
The speaker Gil Tene is also the author of the HdrHistogram which addresses this articles point: https://hdrhistogram.github.io/HdrHistogram/ https://hdrhistogram.github.io/HdrHistogram/
- romed 8y agoI don't get hdrhistogram at all. It's really just histogram with a shitload of logarithmic buckets.
- sbanach 8y agoThe compression format is really smart, there's a neat trick to make the logarithm calculation fast, and there's a concurrent thread handoff mechanism so you can swap out a histogram without disturbing the thread you're measuring (though last two probably only in the java version). Those three make it super useful for very low impact performance measurements.
- frankmcsherry 8y agoAbsolutely worth watching. Cannot un-watch.