netdev - Re: [PATCH RFC v2 net-next 2/2] tcp: Add Redundant Data Bundling (RDB)

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Date:	Mon, 23 Nov 2015 21:05:44 +0100
From:	"Bendik Rønning Opstad" <bro.devel@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>,
	Bendik Rønning Opstad <bro.devel@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Yuchung Cheng <ycheng@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>,
	Andreas Petlund <apetlund@...ula.no>,
	Carsten Griwodz <griff@...ula.no>,
	Pål Halvorsen <paalh@...ula.no>,
	Jonas Markussen <jonassm@....uio.no>,
	Kristian Evensen <kristian.evensen@...il.com>,
	Kenneth Klette Jonassen <kennetkl@....uio.no>
Subject: Re: [PATCH RFC v2 net-next 2/2] tcp: Add Redundant Data Bundling
 (RDB)

On 23/11/15 18:43, Eric Dumazet wrote:
> On Mon, 2015-11-23 at 17:26 +0100, Bendik Rønning Opstad wrote:
> 
>> > +
>> > +tcp_rdb_max_skbs - INTEGER
>> > +	Enable restriction on how many previous SKBs in the output queue
>> > +	RDB may include data from. A value of 1 will restrict bundling to
>> > +	only the data from the last packet that was sent.
>> > +	Default: 1
>> > +
> skb is an internal thing. I would rather not expose a sysctl with such
> name.
> 
> Can be multi segment or not (if GSO/TSO is enabled)
> 
> So even '1' skb can have very different content, from 1 byte to ~64 KB

I see your point about not exposing the internal naming. What about
tcp_rdb_max_packets?


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