Just a note re time sync standards:
In my previous job, we had been playing with the TSN standards, trying to achieve synchronization in the 10s of microseconds
realm. The specific TSN standard (802.1AS) is a specific PTP profile (more or less 1588 v3, if I remember correctly).
To achieve sub-millisecond accuracy one should better have hardware timestamping, but we did achieve very good
results with just software times.
Ronen
On Thu, Jan 9, 2020 at 5:09 PM Brett Niver <bniver@xxxxxxxxxx> wrote:
I played with vectorial clocks 10-15 years ago. I think in 4) you have a typo, casual should be causal, right? I really like Lamport clocks conceptually, I personally found implementing based on that concept to have more corner cases than I liked but that could have been just me.What are your time sync requirements with respect to NTP? Aren't there better algorithms out today?On Wed, Jan 8, 2020 at 10:43 PM Xuehan Xu <xxhdx1985126@xxxxxxxxx> wrote:On Thu, 9 Jan 2020 at 02:45, Matt Benjamin <mbenjami@xxxxxxxxxx> wrote:
>
>Historically, and the discussion has been about the perf. and complexity trade-offs, I think.
Thanks for reviewing, Matt, I totally agree:-)
>
> Matt
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