netdev - Re: [patch net-next v5 09/11] act_police: improved accuracy at high rates

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Message-Id: <20130212.190152.74731512570051284.davem@davemloft.net>
Date:	Tue, 12 Feb 2013 19:01:52 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	jiri@...nulli.us
Cc:	netdev@...r.kernel.org, edumazet@...gle.com, jhs@...atatu.com,
	kuznet@....inr.ac.ru, j.vimal@...il.com
Subject: Re: [patch net-next v5 09/11] act_police: improved accuracy at
 high rates

From: Jiri Pirko <jiri@...nulli.us>
Date: Tue, 12 Feb 2013 11:12:07 +0100

> Current act_police uses rate table computed by the "tc" userspace program,
> which has the following issue:
> 
> The rate table has 256 entries to map packet lengths to
> token (time units).  With TSO sized packets, the 256 entry granularity
> leads to loss/gain of rate, making the token bucket inaccurate.
> 
> Thus, instead of relying on rate table, this patch explicitly computes
> the time and accounts for packet transmission times with nanosecond
> granularity.
> 
> This is a followup to 56b765b79e9a78dc7d3f8850ba5e5567205a3ecd

Same comment here about referencing commits properly.

> Signed-off-by: Jiri Pirko <jiri@...nulli.us>

Applied, thanks.
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