Re: [Linuxptp-users] Status file of achieved time synchronization

[Richard C. <ric...@gm...>]

On Thu, Feb 13, 2014 at 01:01:20PM +0000, Koehrer Mathias (ETAS/ESW5) wrote:
> 
> What I do not see fully clear is the role of phc2sys.
> It is used to synchronize the PTP clock from my Ethernet device to the Linux system clock.
> There is likely a drift/offset between this PTP clock and the Linux system clock.
> This drift/offset has to be corrected by the phc2sys tool.

BTW, in case you did not see the recent discussion about it, you
should know that the Linux kernel option CONFIG_NO_HZ_IDLE is harmful
to your use case. I recommend to either disable this at compile time
or to add "nohz=off" to your kernel command line.

Thanks,
Richard