Re: [Linuxptp-devel] An update to or a new PI(D) servo?

2016-04-08 Thread Miroslav Lichvar
On Fri, Apr 08, 2016 at 11:04:16AM +0200, Nico Augustijn wrote: > The selection of the parameters would be based on the "perceived locking > distance". This could be a user-settable threshold. For instance, in our > particular situation we'd want to switch to much "slower" parameters when > we'r

Re: [Linuxptp-devel] An update to or a new PI(D) servo?

2016-04-08 Thread Nico Augustijn
urrent servo". Could you expand a bit on that? Regards, Nico. -Original Message- From: Miroslav Lichvar [mailto:mlich...@redhat.com] Sent: dinsdag 29 maart 2016 15:54 To: Nico Augustijn Cc: linuxptp-devel@lists.sourceforge.net Subject: Re: [Linuxptp-devel] An update to or a new PI(D

Re: [Linuxptp-devel] An update to or a new PI(D) servo?

2016-03-29 Thread Miroslav Lichvar
On Tue, Mar 29, 2016 at 02:44:26PM +0200, Nico Augustijn wrote: > Last week, we've upgraded the RTL of the board to use a 10 Gb MAC and found > that it introduced a fair amount of jitter on the PPS of the system compared > with 1Gb. > We believe this could be mitigated by introducing a second, "s

[Linuxptp-devel] An update to or a new PI(D) servo?

2016-03-29 Thread Nico Augustijn
Hello people, We've been using ptp4l (1.6) here to synchronize a Xilinx MicroBlaze (soft core) processor to a PTP master and have had some excellent results; once we have a stable lock on the master, the maximum time jitter is only about 20 nanoseconds. And that was with only a simple and cheap