On Sun, 25 Nov 2018, Michael Schmitz wrote: > > We can benchmark gettimeofday syscalls on elgar but is that hardware > > representative of other relevant models? > > I suppose the CIA is on the main board, so running with the slower clock > speed that you'd see with a vanilla Amiga without 060 accelerator board. > Ought to be representative enough? >
Not really. An accelerated CPU clock exaggerates the slowdown factor, given the fixed 0.7 MHz CIA clock. The "(ticks > jiffy_ticks / 2)" conditional won't make anything worse even if interrupt latency is already too high, so I'm inclined towards the more prudent option. This patch series is already complicated enough. In anycase, I'd prefer not to speculate about interrupt priorities or latencies when the list probably has people who know the answers. --
