Jennifer Chou wrote:
> Let's say the statistic is processingtime (average request processing
> time = total time/count) for a web app. Before we hit the web page
> for a request, there are no measurements/samples taken. (no probes fired)
> If we do a asadmin get to retrieve the stats at this point, it will
> return the stats at some initial value. In v2 this initial value for
> lastsampletime = current time. In v3 we were thinking -1. This way
> there is no doubt that nothing has been collected yet for this stat.
>
> Every time we hit the web page, a measurement is taken for that
> processingtime statistic. The count gets incremented, totaltime is
> accumulated, and the lastsampletime is set to current time.
> After 10 hits, the lastsampletime is the time of the 10th hit (time of
> last measurment), and starttime is the time of the 1st hit (time of
> first measurement).
And if, after that 10th hit, I do "get" 10 times, every one of them will
return exactly the same data, until the next hit of the web page?
The confusion is over whether "get" is *causing* the sampling, or is
just returning the sampled data that was caused by something else.