latencybins − comp utility for scripts/latencyhistogram
Usage:
Read availablebins pin for the number of bins available.
Set the maxbinnumber pin for the number of +/- bins.
Ensure maxbinnumber <= availablebins
For maxbinnumber = N, the bins are numbered:
-N ... 0 ... + N bins
(the -0 bin is not populated)
(total effective bins = 2*maxbinnumber +1)
Set nsbinsize pin for the binsize (ns)
Iterate:
Set index pin to a bin number: 0 <= index <=
maxbinnumber.
Read check pin and verify that check pin == index pin.
Read pbinvalue,nbinvalue,pextra,nextra pins.
(pbinvalue is count for bin = +index)
(nbinvalue is count for bin = -index)
(pextra is count for all bins > maxbinnumber)
(nextra is count for all bins < maxbinnumber)
If index is out
of range ( index < 0 or index > maxbinnumber)
then pbinvalue = nbinvalue = -1.
The reset pin may be used to restart.
The latency pin outputs the instantaneous latency.
Maintainers note: hardcoded for MAXBINNUMBER==1000
latencybins.N
latencybins.N.maxbinnumber
s32 in (default: 1000)
latencybins.N.index s32 in
latencybins.N.reset bit in
latencybins.N.nsbinsize s32 in
latencybins.N.check s32 out
latencybins.N.latency s32 out
latencybins.N.pbinvalue s32 out
latencybins.N.nbinvalue s32 out
latencybins.N.pextra s32 out
latencybins.N.nextra s32 out
latencybins.N.availablebins s32 out
(default: 1000)
GPL