From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: SACK scoreboard
Date: Wed, 09 Jan 2008 03:25:05 +0100
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	<20080107.233617.203640686.davem@davemloft.net>
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Cc: jheffner@psc.edu, ilpo.jarvinen@helsinki.fi,
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To: David Miller <davem@davemloft.net>
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In-Reply-To: <20080108.144456.173014334.davem@davemloft.net> (David Miller's message of "Tue\, 08 Jan 2008 14\:44\:56 -0800 \(PST\)")
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David Miller <davem@davemloft.net> writes:
>
> The big problem is that recovery from even a single packet loss in a
> window makes us run kfree_skb() for a all the packets in a full
> window's worth of data when recovery completes.

Why exactly is it a problem to free them all at once? Are you worried
about kernel preemption latencies?

-Andi