* [Bloat] Precision Time Protocol (PTP)
@ 2022-11-22 11:18 Kenneth Porter
2022-11-22 19:10 ` David Lang
0 siblings, 1 reply; 2+ messages in thread
From: Kenneth Porter @ 2022-11-22 11:18 UTC (permalink / raw)
To: Bufferbloat Mailing List
A nanosecond-scale replacement for NTP? This looks useful for measuring
latency. Lots of technical implementation details here, down to the
hardware level.
<https://engineering.fb.com/2022/11/21/production-engineering/precision-time-protocol-at-meta/>
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Bloat] Precision Time Protocol (PTP)
2022-11-22 11:18 [Bloat] Precision Time Protocol (PTP) Kenneth Porter
@ 2022-11-22 19:10 ` David Lang
0 siblings, 0 replies; 2+ messages in thread
From: David Lang @ 2022-11-22 19:10 UTC (permalink / raw)
To: Kenneth Porter; +Cc: Bufferbloat Mailing List
As I understand PTP, you can't get 'acceptable' accuracy with general purpose
hardware.
'acceptable' as defined by the time geeks.
unfortunantly, their insistance on perfection seems to be blocking anything
better than ntp.
A few years ago I found PTP and thought it would be interesting to use to try to
time music playing from multiple devices (fireworks shows), but could not find
any implementation that could easily be used.
David Lang
On Tue, 22 Nov 2022, Kenneth Porter via Bloat wrote:
> A nanosecond-scale replacement for NTP? This looks useful for measuring
> latency. Lots of technical implementation details here, down to the
> hardware level.
>
> <https://engineering.fb.com/2022/11/21/production-engineering/precision-time-protocol-at-meta/>
>
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-11-22 19:10 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-11-22 11:18 [Bloat] Precision Time Protocol (PTP) Kenneth Porter
2022-11-22 19:10 ` David Lang
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox