[zeromq-dev] Any update on Precision Time Protocol (PTP)?

Martin Sustrik sustrik at 250bpm.com
Wed Sep 28 10:20:36 CEST 2011

On 09/28/2011 09:00 AM, Peter Lemenkov wrote:
> 2011/9/28 Noospheer Team<team at noospheer.org>:
>> A couple weeks back there was talk of integrating PTP into 0MQ for A/V
>> synchronization purposes. I imagine such an effective timing system
>> would be also useful for making 0MQ HPC friendlier.

The question is what exactly would the PTP be used for?

Timestamping the messages? If so, you can use PTP to synchronise the 
clocks and timestamp messages using standard time functions on top of 
0MQ -- we've already used this system for precise benchmarking and 
tuning of 0MQ.

> Before discussing further I'd like to note that PTP (IEEE1588) is
> covered by several software patents. This could be a no-go issue for
> some interested parties.

Yes. However, if used on top of 0MQ as described above it's not an problem.


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