linux-kernel - Re: High contention on the sk_buff

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Message-ID: <20090319134649.GX11935@one.firstfloor.org>
Date:	Thu, 19 Mar 2009 14:46:49 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	"Peter W. Morreale" <pmorreale@...ell.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Vernon Mauery <vernux@...ibm.com>,
	netdev <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: High contention on the sk_buff_head.lock

> Recall that adaptive spin,developed in RT, is now in mainline. 

For mutexes, but not for spinlocks. And qdisc uses spinlocks.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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