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Date: Wed, 18 Mar 2009 18:54:41 -0700 (PDT) From: David Miller <davem@...emloft.net> To: sven@...bigcorporation.com Cc: ghaskins@...ell.com, vernux@...ibm.com, andi@...stfloor.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org, pmullaney@...ell.com Subject: Re: High contention on the sk_buff_head.lock From: Sven-Thorsten Dietrich <sven@...bigcorporation.com> Date: Wed, 18 Mar 2009 18:43:27 -0700 > Do we have to rule-out per-CPU queues, that aggregate into a master > queue in a batch-wise manner? That would violate the properties and characteristics expected by the packet scheduler, wrt. to fair based fairness, rate limiting, etc. The only legal situation where we can parallelize to single device is where only the most trivial packet scheduler is attached to the device and the device is multiqueue, and that is exactly what we do right now. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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