> I am adding some logic to synchronize with the PPS signal from > the GPS device that I hooked up to a RaspberryPi. With this > change the TOD clock should be accurate to within 10 to 20 µs. > So I for one welcome the new syscall! [Though its introduction > could've been better managed]
even a syscall on a rpi is going to cost you at least 5-10µs and clock drift will make this, and your second point very hard. > But using a TOD clock for measuring performance seems wrong > since it will also have to account for leapseconds (at the > moment timesync happily ignores leapseconds). - erik
