[dpdk-dev] [PATCH v6 4/4] latencystats: added new library for latency stats

Mcnamara, John john.mcnamara at intel.com
Fri Jan 13 10:45:35 CET 2017

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Thursday, January 12, 2017 1:41 PM
> To: Horton, Remy <remy.horton at intel.com>; Pattan, Reshma
> <reshma.pattan at intel.com>
> Cc: dev at dpdk.org; olivier.matz at 6wind.com
> Subject: Re: [dpdk-dev] [PATCH v6 4/4] latencystats: added new library for
> latency stats
> 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?
> > 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

Hi Thomas,

Is that an issue? The other patch adds the same field for more or less the same purpose.
If the other patch goes in we can rework this patch or if this patch goes in the
other one won't be required.


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