Re: [dpdk-dev] [RFC] app/test-flow-perf: add rte_flow perf app

[Jerin Jacob <jerinjacobk@gmail.com>]

On Fri, Mar 20, 2020 at 5:21 PM Thomas Monjalon <thomas@monjalon.net> wrote:
>
> 20/03/2020 07:49, Jerin Jacob:
> > On Tue, Mar 17, 2020 at 7:16 PM Wisam Jaddo <wisamm@mellanox.com> wrote:
> >
> > Thanks for this application. Useful stuff.
> >
> > >
> > > Introducing new application for rte_flow performance
> > > testing. The application provide the ability to test
> > > insertion rate of specific rte_flow rule, by stressing
> > > it to the NIC, and calculate the insertion rate.
> > >
> > > It also provides packet per second measurements
> > > after the insertion operation is done.
> > >
> > > The application offers some options in the command
> > > line, to configure which rule to apply.
> > >
> > > After that the application will start producing rules
> > > with same pattern but increasing the outer IP source
> > > address by 1 each time, thus it will give different
> > > flow each time, and all other items will have open masks.
> > >
> > > The current design have single core insertion rate.
> > > In the future we may have a multi core insertion rate
> > > measurement support in the app.
> >
> > If I understand correctly,
> > # On the main thread, this  application first check the flow insertion
> > performance
> > # and then start the worker thread for packet forwarding.
> > Why this application testing the packet forwarding?, We already have
> > testpmd for that.
>
> I think it is interesting to measure forwarding performance
> when million of flow rules are in effect.

The rules are applied to the HW CAM, Right?
Do you see any performance difference?

>
> > IMO, This application needs to focus only on
> > - Insertion performance
> > - Deletion performance
> > - IMO, it is better to add a framework for the profile where the first
> > version of this application can
> > define common a set of ITEMS and set of ACTION and later others can extend it.
> > And the framework can run over all the profiles and spit out the
> > insertion and deletion
> > performance.
>
> What do you call a profile? Is it a set of rules?

set of rules and/or actions.

> I think this first version is proposing rules customization with parameters.

Just that it better to have a framework where one can easily add new
profiles and
test various combos. IMO, Cascade rules take more insertion time.

> Note: I prefer a non-interactive application for performance testing.

Me too. Command-line is fine.

>
> > > The app supports single and multi core performance
> > > measurements.
>
>
>