| Re: [chrony-dev] SW/HW timestamping on Linux |
[ Thread Index |
Date Index
| More chrony.tuxfamily.org/chrony-dev Archives
]
- To: chrony-dev@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-dev] SW/HW timestamping on Linux
- From: Denny Page <dennypage@xxxxxx>
- Date: Fri, 11 Nov 2016 10:52:32 -0800
- Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=me.com; s=4d515a; t=1478890356; bh=ZgV0L8X91A5izzSvFgbb4zuWFpB5xN4vOJs4zsoja8s=; h=From:Content-type:MIME-version:Subject:Date:To:Message-id; b=GdMtllgI+wjxiQcZ9YD4zRt+iobJJZlOHg6Z86gAnVc6b9Z85mgvk9fTRNm5T07Qt fm64tuYmB8pPduoFMzpK1/XMR64MaS+hUYltgi9ZLs8sUKwj6OFTDNCqfMMdZwmL/p AdJet6t70grpLQklbpMNMgN1TDAcSZq9mvSFP3Diaets+qDNOV883kd6tJwoPBR5Ma tbXVQAcrsznLpeRuYWMPJ34S8Z2oCaZHCjcLcKTK5xH20R8gEAUl7IErB0V0F2miiF PxaUY0M9G2wTe/vF0/2vKa2yRQIF0WEabeU6MdeQggUq9l6KCMpyc4QuZtEsGm0lqR MHLzAgw4YgMYA==
The average offset is ~300ns. I would not expect there to be so much asymmetry with the switch, but I suppose anything is possible. If I enable hardware time stamps the offset jumps to ~2100ns.
Denny
> On Nov 11, 2016, at 02:22, Miroslav Lichvar <mlichvar@xxxxxxxxxx> wrote:
>
> This looks very good and I'm curious to see how much further it will
> improve with HW timestamping. The offset of ~400ns between the 1st/2nd
> and 3rd server could be an asymmetry in delay due to the switch, right?
--
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.