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

[Ledda W. E. <Wil...@it...>]

Yes, disable it adding "nohz=off" at kernel command line and you can see the difference. Phc2sys will report more stable and very low delay (I see hundreds of nanoseconds on my platforms)


-----Original Message-----
From: Koehrer Mathias (ETAS/ESW5) [mailto:mat...@et...] 
Sent: 19 February 2014 15:08
To: Richard Cochran
Cc: lin...@li...
Subject: Re: [Linuxptp-users] Status file of achieved time synchronization

Hi Richard!

> 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 for the hint.
With my kernel 3.2 there is no config option CONFIG_NO_HZ_IDLE.
I have only "CONFIG_NO_HZ". Is this also harmful?


Regards

Mathias


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