Richard,
> Well, now that we have CLOCK_TAI in Linux, that takes of the leap second
> issue.
Which is the kernel version that include CLOCK_TAI?
Thanks
William
-Original Message-
From: Richard Cochran [mailto:richardcoch...@gmail.com]
Sent: 19 February 2014 16:08
To: Ledda William
On Fri, Feb 21, 2014 at 08:50:43AM +, Ledda William EXT wrote:
> Which is the kernel version that include CLOCK_TAI?
v3.10
HTH,
Richard
--
Managing the Performance of Cloud-Based Applications
Take advantage of what t
On Fri, Feb 21, 2014 at 09:58:12AM +0100, Richard Cochran wrote:
> On Fri, Feb 21, 2014 at 08:50:43AM +, Ledda William EXT wrote:
> > Which is the kernel version that include CLOCK_TAI?
>
> v3.10
But there was an early bug. Make sure you use the latest stable
kernel.
Thanks,
Richard
---
On Fri, Feb 21, 2014 at 10:03:12AM +0100, Richard Cochran wrote:
> On Fri, Feb 21, 2014 at 09:58:12AM +0100, Richard Cochran wrote:
> > On Fri, Feb 21, 2014 at 08:50:43AM +, Ledda William EXT wrote:
> > > Which is the kernel version that include CLOCK_TAI?
> >
> > v3.10
>
> But there was an e
On Fri, Feb 21, 2014 at 10:11:33AM +0100, Miroslav Lichvar wrote:
>
> Hm, should we set the kernel TAI offset (ADJ_TAI) in ptp4l
> and phc2sys?
I think we should if:
1. the node is slaved to a GM
2. the GM timescale is PTP and is traceable
3. the reported TAI offset differs from the kernel's
Th
Hi all,
to synchronize a couple (6-8) PCs I want to use one PCs PTP master and the
others as PTP slaves.
To interconnect the PCs I can use a PTP capable switch. However these switches
are fairly expensive.
The first question I have: How does a "standard" Ethernet switch perform? Which
accuracy
On Fri, Feb 21, 2014 at 01:16:09PM +, Koehrer Mathias (ETAS/ESW5) wrote:
> Hi all,
>
> to synchronize a couple (6-8) PCs I want to use one PCs PTP master and the
> others as PTP slaves.
> To interconnect the PCs I can use a PTP capable switch. However these
> switches are fairly expensive.
>
You can try to synchronize several PCs with a standard switch.
I measured the delay with one master and one slave and then slightly modified
ptp4l with the value obtained (hardcoded). I disabled the delay req messages on
the slaves (to avoid messages accumulation on the master side). There is no
