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Re: statistics with intermediate results


James Dickens wrote:
On 1/11/06, Martin Peschke <mp3@de.ibm.com> wrote:
If I want to provide latencies then I need to measure two times,
send time and receive time. I can calculate a latency
when I know both times, which requires the first time to be
kept somewhere until I have measured the second time.

and really you don't need to keep all the results, basicly you could just store min, max, and mean or medium and get the information you would need for most tasks.

You might be right regarding min/max/avg being sufficient for some cases. However, I think histograms can be useful for other cases. Latency histograms might show several peaks, with one or more of them being unexpected and worth a closer look.

Martin


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