Hi Richard,
Thank you very much. Yes, I need to look at stats.c block - trying to take advantage of your having gone through it already. I am sorry for that. Thanking you in anticipation, Regards, Chandra (c) : +60.175508142 (O): +60.4.636.6412 "Knowledge speaks, Wisdom listens" -----Original Message----- From: Richard Cochran [mailto:[email protected]] Sent: Monday, June 22, 2015 9:13 PM To: Chandra Mallela Cc: Miroslav Lichvar; [email protected] Subject: Re: [Linuxptp-users] Interpretation of ptp4l results On Mon, Jun 22, 2015 at 12:22:01PM +0000, Chandra Mallela wrote: > Offset correction: the 'rms' (root mean squre - 2 ns in the above > case) is the mean offset (calculated as squareroot of the mean of the > offset squares) of all the offsets in the sample observed in the > interval and 'max' (7ns) is the maximum offset observed within the > sample. Yes. > Frequency correction: Mean frequency deviation observed is 156403 ppb > with the standard deviation of 7 pbb Yes. > (if so, is 7pbb at 3sigma?): ? > likening it to gaussian/normal distribution ?? > Path delay: the mean value is 28ns and the standard deviation is 0: Yes. > likening it to the gaussian/normal distribution ??? Take a look at stats.c to see how the stddev is being calculated. It is really straightforward. Thanks, Richard ________________________________ Confidentiality Notice. This message may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient, you are hereby notified that any use, disclosure, dissemination, distribution, or copying of this message, or any attachments, is strictly prohibited. If you have received this message in error, please advise the sender by reply e-mail, and delete the message and any attachments. Thank you. ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ Linuxptp-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linuxptp-users
