netdev - Re: [PATCH net-next v2 1/8] tipc: decrease connection flow control window

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Message-ID: <1400068233.7973.80.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 14 May 2014 04:50:33 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jon Maloy <jon.maloy@...csson.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	erik.hugne@...csson.com, ying.xue@...driver.com, maloy@...jonn.com,
	tipc-discussion@...ts.sourceforge.net
Subject: Re: [PATCH net-next v2 1/8] tipc: decrease connection flow control
 window

On Wed, 2014-05-14 at 05:39 -0400, Jon Maloy wrote:
> Memory overhead when allocating big buffers for data transfer may
> be quite significant. E.g., truesize of a 64 KB buffer turns out
> to be 132 KB, 2 x the requested size.

It might be time to use a different strategy for skb allocations then ?

Is this because TIPC does not support SG ?


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