| Re: [chrony-dev] SW/HW timestamping on Linux |
[ Thread Index |
Date Index
| More chrony.tuxfamily.org/chrony-dev Archives
]
On Wed, Jan 18, 2017 at 09:49:13AM -0800, Denny Page wrote:
> And To be clear, this would not address phy/mac delay/asymmetry issues. It would just replace the call to PTP_SYS_OFFSET. Instead of an array that you have to interpolate, you just get a single (accurate) value. This would be very helpful however, because PTP_SYS_OFFSET is the source of most of the variance in ethtscal.
Avoiding the asymmetry on the PCIe bus is what I'm most interested in.
I'll add support for the new ioctl, but I wanted to test it first. I
think I found a system that has art and e1000e in our lab, so I'll see
if I can test it there.
--
Miroslav Lichvar
--
To unsubscribe email chrony-dev-request@xxxxxxxxxxxxxxxxxxxx with "unsubscribe" in the subject.
For help email chrony-dev-request@xxxxxxxxxxxxxxxxxxxx with "help" in the subject.
Trouble? Email listmaster@xxxxxxxxxxxxxxxxxxxx.