netdev - Re: [PATCH iproute2 3/3] ss: Unify tcp stats output

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Date:	Tue, 20 Jan 2015 13:09:51 +0200
From:	Vadim Kochan <vadim4j@...il.com>
To:	Daniel Borkmann <dborkman@...hat.com>
Cc:	Hagen Paul Pfeifer <hagen@...u.net>,
	Vadim Kochan <vadim4j@...il.com>,
	netdev <netdev@...r.kernel.org>,
	Stephen Hemminger <stephen@...workplumber.org>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [PATCH iproute2 3/3] ss: Unify tcp stats output

On Tue, Jan 20, 2015 at 12:17:03PM +0100, Daniel Borkmann wrote:
> Hi Hagen,
> 
> On 01/20/2015 11:29 AM, Hagen Paul Pfeifer wrote:
> >On 18 January 2015 at 21:43, Vadim Kochan <vadim4j@...il.com> wrote:
> ...
> >My proposal:
> >
> >1) support grouping. E.g. DCTCP could be separated in the following
> >manner. I.e. "dctcp:[ ce_state: %d, alpha: %d, ...  ]" or
> >"dctcp:ce_state.%d;alpha,%d" like the socket memory output.
> >     This makes it easier for humans and scripts to parse the output.
> >Since some time ss output is extended really extensive (especially
> >Eric make use of this). This is not the end and additional values are
> >added - make the current babylon even worse.
> 
> I have no strong opinion on this, but I also have a limited view on
> what applications try to parse ss output in general.
> 
> As mentioned, for human readability, we should implement a top-like
> display option which is allowed to have a rather 'instable' output
> by nature and levels of detail can be folded/unfolded on demand.

I think it would be good to have as option and output some default basic
info ?
> 
> >2) add a JSON formater as soon as possible to make the output
> >parseable. I would do this - it is required anyway.
> 
> Given the recent discussion on web10g, json output option might
> be very useful to provide i.e. when stats are being further extended.
> 
> Cheers,
> Daniel
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