Perform accumulation of stats only once (i.e. increasing an actual
counter) and report stats based on differences to previous values,
instead of carrying multiple stats counters for each metric and
resetting each counter to zero whenever stats are reported.
`rtpe_stats` is the global master accumulator.
`_intv` variables are intermediate and local storage for values sampled
from `rtpe_stats` at regular intervals.
`_rate` and `_diff` variables hold stats calculated from `rtpe_stats`
and the respective `_intv` variable whenever the sampling and reporting
occurs.
`stats_counters_calc_diff` is used to calculate stats as differences
between `rtpe_stats` and the last sampled `_intv`
`stats_counters_calc_rate` does the same but calculates a per-second
rate, based on a microsecond duration.
Eliminate now-useless struct global_stats_ax
Change-Id: Ic4ca630161787025219b67e49b41995204d60573
This fixes the payload counts not being tracked correctly when payload
types repeat after the tracker rolls over.
Change-Id: I16208ef73f3af3b051b96541a4c145b323cef7b2
Keep a running lifetime total of all "gauge" type metrics. Also track
the square of the sums of all "gauge" type metrics in order to determine
the standard deviation.
Change-Id: I23f60774a6421636f1a913674c7d1b54a1c5f702
Rename test suites from *-test.c to test-*.c as the former is
conflicting with the file name pattern of the build tests, which are
listed in .gitignore.
Change-Id: I8779fac492510c0996bdcb2c6250c07536fe3b63
Instead of just remembering the last seen RTP payload type, this adds a
tracker that keeps track of the last 32 seen payload types and keep the
list in order of how often each type was seen.
Change-Id: I062a43b7bfc9413b755dca548d72953ff8245477