netdev - Re: [PATCH v3 net-next] pktgen: introduce 'rx' mode

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Date:	Tue, 05 May 2015 11:30:06 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	Jesper Dangaard Brouer <brouer@...hat.com>
CC:	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
	Robert Olsson <robert@...julf.net>,
	Ben Greear <greearb@...delatech.com>
Subject: Re: [PATCH v3 net-next] pktgen: introduce 'rx' mode

On 5/5/15 11:15 AM, Jesper Dangaard Brouer wrote:
>
> On Sat, 02 May 2015 10:07:48 -0700 Alexei Starovoitov <ast@...mgrid.com> wrote:
>> On 5/2/15 9:46 AM, Jesper Dangaard Brouer wrote:
> [...]
>>
>> all makes sense.
>> btw, I'm off the grid till Monday and it sounds like you see concrete
>> spots in the code to hack this stuff in, so if you want to take over,
>> please go ahead :)
>
> Okay, I'll address my own concerns and post a patch in your name("From:")

lol :) I seriously don't care about commit count.
Thank you for taking over.
I'm swamped with tracing stuff at the moment.

> As I would like to see this feature in pktgen, as it provides a really
> easy and quick way to measure/profile changes in the ingress path...

same here. my motivation for this patch is to have a common tool
to measure ingress speed, so we can have concrete numbers to talk about.
Also, as you mentioned, there is always a danger of 'zooming in'.
Any type of benchmarking shouldn't be blindly followed. At the same time
all numbers are useful. They are different datapoints that make
a complete picture.

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