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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Bill Fink <billfink@mindspring.com>
Cc: Tom Herbert <therbert@google.com>,
	davem@davemloft.net, netdev@vger.kernel.org
Subject: Re: [PATCH 0/3] net: Byte queue limit patch series
Date: Tue, 26 Apr 2011 08:17:41 +0200	[thread overview]
Message-ID: <1303798661.2747.209.camel@edumazet-laptop> (raw)
In-Reply-To: <20110426015645.c2d19cfe.billfink@mindspring.com>

Le mardi 26 avril 2011 à 01:56 -0400, Bill Fink a écrit :

> I don't quite follow your conclusion from your data.
> While there was a sweet spot for the 1400 rr size, other
> smaller rr took a hit.  Now all the tps changes were
> within 1 %, so perhaps that isn't considered significant
> (I'm not qualified to make that call).  But if that's
> the case, then the effective latency change seen by the
> user isn't significant either, although the amount of
> queuing in the NIC is admittedly significantly reduced
> for a rr size of 1400 or larger.

Tom point was to show that we can reduce latency (because size of
netdevice queue is smaller) without changing tps ;)




  reply	other threads:[~2011-04-26  6:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-26  4:38 [PATCH 0/3] net: Byte queue limit patch series Tom Herbert
2011-04-26  5:56 ` Bill Fink
2011-04-26  6:17   ` Eric Dumazet [this message]
2011-04-26  6:14 ` Eric Dumazet
2011-04-26 16:57 ` Rick Jones
2011-04-29 18:54 ` David Miller
2011-05-02  2:41   ` Tom Herbert
2011-05-02  3:49     ` David Miller

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