HiMathias,
Only by using the nohz=off option in the kernel command line, the delay in
phc2sys dropped from several microseconds to a hundred nanoseconds.
Julien.
________________________________
De : Koehrer Mathias (ETAS/ESW5) <[email protected]>
À : Richard Cochran <[email protected]>
Cc : "[email protected]"
<[email protected]>
Envoyé le : Mercredi 19 février 2014 15h08
Objet : 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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