Re: statistics with intermediate results

[Martin Peschke <mp3 at de dot ibm dot com>]

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