>From our experience, no matter how much we tried, we cannot get an accurate time measurements across different machines. NTP can only make the clocks synchronize up to some level and even if the clocks are synced they drift again very quickly. If you really want to measure the time across machines I guess one method is to send a message with a timestamp, get a response with the same time-stamp and get the difference.
Thanks, Supun.. On Thu, Apr 23, 2015 at 10:45 AM, Nick R. Katsipoulakis < [email protected]> wrote: > Hello Jeremy, > > I have the same fears on using nano-time. > > Cheers, > Nick > > 2015-04-23 10:29 GMT-04:00 Jeremy Heiler <[email protected]>: > >> On Wed, Apr 22, 2015 at 3:18 PM, Sushant Kumar <[email protected]> >> wrote: >> > >> > look at >> http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/System.html#nanoTime%28%29 >> . >> >> I'd be wry of using nanoTime() across systems. I don't think there's any >> guarantee of consistency. >> > > > > -- > Nikolaos Romanos Katsipoulakis, > University of Pittsburgh, PhD candidate > -- Supun Kamburugamuva Member, Apache Software Foundation; http://www.apache.org E-mail: [email protected]; Mobile: +1 812 369 6762 Blog: http://supunk.blogspot.com
