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

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Message-ID: <1448300602.22599.292.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Mon, 23 Nov 2015 09:43:22 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	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>,
	Bendik Rønning Opstad 
	<bro.devel+kernel@...il.com>
Subject: Re: [PATCH RFC v2 net-next 2/2] tcp: Add Redundant Data Bundling
 (RDB)

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



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