http://xyst.i2p/classtk_1_1_timer.html
Function documentation real tk:: Timer:: dsec ( ) const Returns Time elapsed between start and stop as a real number Query time in second since the constructor call Watch tk:: Timer:: hms ( ) const Query time in second since the constructor call. Returns Time elapsed between start and stop as hours, minutes, and seconds, as a Watch struct. void tk:: Timer:: eta ( real term, real time,
uint64_t nstep,
uint64_t it, tk:: real res0, tk:: real res,...