NAME

       latencybins - comp utility for scripts/latency-histogram

SYNOPSIS

       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 output 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
                latency-min is max negative latency
                latency-max is max positive latency

          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

FUNCTIONS

       latencybins.N

PINS

       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.latency-max s32 out
       latencybins.N.latency-min s32 out
       latencybins.N.pbinvalue s32 out
       latencybins.N.nbinvalue s32 out
       latencybins.N.pextra s32 out
       latencybins.N.nextra s32 out
       latencybins.N.variance s32 out
       latencybins.N.availablebins s32 out (default: 1000)

LICENSE

       GPL