[dpdk-dev] [RFC] DPDK Trace support

Jerin Jacob jerinjacobk at gmail.com
Mon Jan 13 15:46:07 CET 2020


On Mon, Jan 13, 2020 at 6:36 PM Bruce Richardson
<bruce.richardson at intel.com> wrote:
>
>
> > So, Probably it good to have native CTF emitter in DPDK and reuse all
> > open-source trace viewer(babeltrace and  TraceCompass) and format(CTF) infrastructure.
> > I think, it would be best of both world.
> >
> > Any thoughts on this subject? Based on the community feedback, I can work on the patch for v20.05.
>
> Forgive my ignorance of LTTng, but is there the concept of
> enabling/disabling the trace points? If so, the overhead you refer to, that
> is presumably with the trace enabled?

Yes this is when trace is enabled. If the trace is disabled then it
will be the only a handful of cycles.

> /Bruce


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