From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Ricardo Leitner <mleitner@redhat.com>
Subject: Re: [PATCH net-next] tcp: add tcpi_segs_in and tcpi_segs_out to
 tcp_info
Date: Thu, 21 May 2015 09:38:45 -0300
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Cc: Rick Jones <rick.jones2@hp.com>,
	Eric Dumazet <edumazet@google.com>,
	"David S. Miller" <davem@davemloft.net>,
	netdev <netdev@vger.kernel.org>,
	Yuchung Cheng <ycheng@google.com>,
	Matt Mathis <mattmathis@google.com>,
	Craig Gallek <cgallek@google.com>, Martin Lau <kafai@fb.com>,
	Chris Rapier <rapier@psc.edu>
To: Eric Dumazet <eric.dumazet@gmail.com>
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On Wed, May 20, 2015 at 05:52:34PM -0700, Eric Dumazet wrote:
> On Wed, 2015-05-20 at 17:48 -0700, Rick Jones wrote:
> > On 05/20/2015 05:37 PM, Eric Dumazet wrote:
> > 
> > > Anyway, if we can send tcp data at 100Gbits on one flow, I guess we are
> > > doing a terrific job and do not need to tweak TCP stack anymore ;)
> > 
> > :)
> > 
> 
> Note that I have no particular strong feelings with these counters being
> 32 or 64bits. Its adding 8 extra bytes and a bit more overhead, nothing
> more.

And if they really need an absolute number, 500s is still pretty much
enough for polling these and adding the delta to some local u64 var.

  Marcelo