On 25/05/2017 05:19, guangrong.xiao@xxxxxxxxx wrote: > > Note: as qemu needs a precise timer to drive its rtc timer callbacks, > that means clock=vm is not suitable for us as it's driven by icount > for qtest, so that we use clock=host instead, it is why we put the > periodic timer test separately without mixing with rtc-test I'm not sure I understand. Why would clock_step(1000) not be a good replacement for nsleep(1000)? Thanks, Paolo