On 12/01/2017 13:41, Thomas Monjalon wrote:
2017-01-12 00:03, Remy Horton:
Add a library designed to calculate latency statistics and report them
to the application when queried. The library measures minimum, average and
maximum latencies, and jitter in nano seconds. The current implementation
supports global latency stats, i.e. per application stats.
Is it specific to ethdev ports?
No (or at least not at the moment).
Added new field to mbuf struct to mark the packet arrival time on Rx.
There was another patch adding a timestamp in mbuf:
http://dpdk.org/ml/archives/dev/2016-October/048809.html
Will look into it. Since time is tight will have internal discussion
whether latency will make it into 17.02..
APIs:
* Added APIs to initialize and un initialize latency stats
calculation.
* Added API to retrieve latency stats names and values.
Why bitrate and latencies are separate libs?
They were developed independently by different people in response to
seperate requirements.
Reshma went on extended leave, so I took over the latency patch at the
last moment when development was complete. Aside from rebase-related
fixups and one printf change it is the last version of her seperate
patch included verbatim.
..Remy
