netdev - Re: [RFC] New driver API to speed up small packets xmits

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Message-ID: <OFA468C4CC.DFCC28AE-ON882572D7.0077B6D5-882572D7.00783CAB@us.ibm.com>
Date:	Thu, 10 May 2007 14:53:42 -0700
From:	David Stevens <dlstevens@...ibm.com>
To:	Rick Jones <rick.jones2@...com>
Cc:	Evgeniy Polyakov <johnpol@....mipt.ru>,
	Krishna Kumar2 <krkumar2@...ibm.com>, netdev@...r.kernel.org,
	netdev-owner@...r.kernel.org
Subject: Re: [RFC] New driver API to speed up small packets xmits

> Which worked _very_ well (the whole list) going in the other direction 
for the 
> netisr queue(s) in HP-UX 10.20.  OK, I promise no more old HP-UX stories 
for the 
> balance of the week :)

        Yes, OSes I worked on in other lives usually took the whole queue
and then took responsibility for handling them outside the lock.
        A dequeue_n() under 1 lock should still be better than n locks,
I'd think, since you may bounce to different CPUs during the n individual
cycles.

                                                        +-DLS

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