[Beowulf] IEEE 1588 (PTP) - a better cluster clock?
patrick at myri.com
Tue Jul 24 13:11:02 PDT 2007
Jim Lux wrote:
> Highly parallelized real time signal processing? Seems like a classic
Wouldn't you need a real-time OS and a real-time communication layer to
do real-time processing? Or at least within the same level of time
accuracy ? The Linux scheduler is still on a 10ms quantum of time, and
QoS in network is still about what to drop first, not guaranteeing
If PTP is as good (accuracy, resource usage) as the specialized methods,
then using a common implementation is the best deal. However,
application-specific/architecture-specific synchronization may be more
efficient. The trade-off is between the performance of the first versus
the cost of the second. That's the rule behind commodity solutions.
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