From: Bruce Richardson <bruce.richardson@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>,
dev@dpdk.org, "Wu, Jingjing" <jingjing.wu@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3] app/testpmd: add parameter to start forwarding TX first
Date: Tue, 20 Jun 2017 10:22:39 +0100 [thread overview]
Message-ID: <20170620092239.GA39980@bricha3-MOBL3.ger.corp.intel.com> (raw)
In-Reply-To: <2741486.Oz5ccjHQup@xps>
On Mon, Jun 19, 2017 at 11:12:53PM +0200, Thomas Monjalon wrote:
> 15/06/2017 14:05, De Lara Guarch, Pablo:
> > > Add parameter to start forwarding sending first
> > > a burst of packets, which is useful when testing
> > > a loopback connection.
> > >
> > > This was already implemented as an internal command,
> > > but adding it as a parameter is interesting, as it
> > > allows the user to test a loopback connection without
> > > entering in the internal command line.
> > >
> > > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> > > ---
> > > --- a/doc/guides/testpmd_app_ug/run_app.rst
> > > +++ b/doc/guides/testpmd_app_ug/run_app.rst
> > > @@ -188,6 +188,14 @@ The commandline options are:
> > >
> > > Start forwarding on initialization.
> > >
> > > +* ``--tx-first``
> > > +
> > > + Start forwarding, after sending a burst of packets first.
> > > +
> > > +.. Note::
> > > +
> > > + This flag should be only used in non-interactive mode.
>
> I don't really understand the benefit of this option.
> Why is it better than
> echo start tx_first | testpmd -i
> ?
The one big difference I see is normal vs abnormal termination. With the
echo command you suggest, the only way to terminate testpmd is to kill
it via signal. With the extra cmdline option, it will cleanly exit via
enter as with non-interactive mode right now. Not a huge difference, but
I think having the extra argument to enable tx-first is useful.
/Bruce
next prev parent reply other threads:[~2017-06-20 9:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-28 21:36 [dpdk-dev] [PATCH] app/testpmd: add parameter to start forwarding sending Pablo de Lara
2017-06-07 9:17 ` Wu, Jingjing
2017-06-07 13:20 ` De Lara Guarch, Pablo
2017-06-07 13:23 ` Bruce Richardson
2017-06-09 2:30 ` [dpdk-dev] [PATCH v2] " Pablo de Lara
2017-06-15 4:04 ` [dpdk-dev] [PATCH v3] app/testpmd: add parameter to start forwarding TX first Pablo de Lara
2017-06-15 12:05 ` De Lara Guarch, Pablo
2017-06-19 1:05 ` Wu, Jingjing
2017-07-05 23:48 ` Thomas Monjalon
2017-06-19 21:12 ` Thomas Monjalon
2017-06-20 8:03 ` De Lara Guarch, Pablo
2017-06-20 9:22 ` Bruce Richardson [this message]
2017-06-20 9:58 ` Thomas Monjalon
2017-06-20 10:19 ` Gaëtan Rivet
2017-06-20 10:27 ` Van Haaren, Harry
2017-06-20 11:20 ` Bruce Richardson
2017-06-20 12:30 ` Gaëtan Rivet
2017-06-19 0:53 ` [dpdk-dev] [PATCH v2] app/testpmd: add parameter to start forwarding sending Wu, Jingjing
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