On 2012-08-23 15:11, Paolo Bonzini wrote: >>> So, in order to remove the qemu_notify_event completely, what about not >>> using signals anymore for timers? You could just tweak the select >>> timeout and drop all the -clock madness. Zero syscalls, practically no >>> overhead. If this is not precise enough, use timerfd on Linux only >> >> Need to think about it. At least, real-time tasks will get proper >> precision on Linux. Not sure if it will be sufficient on other hosts. > > Do we care (I put non-Linux POSIX just a little above Windows but not much)?
Well, at least we should not regress. For Windows I just found out that we support millisecond resolution in os_host_main_loop_wait at best due to g_poll. That would be fine, but what is g_poll really using? Likely not mm-timers... Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux
