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Date: Tue, 12 May 2009 11:32:41 +0200 From: Peter Zijlstra <a.p.zijlstra@...llo.nl> To: Ingo Molnar <mingo@...e.hu> Cc: Chris Friesen <cfriesen@...tel.com>, Thomas Gleixner <tglx@...utronix.de>, Steven Rostedt <rostedt@...dmis.org>, David Miller <davem@...emloft.net>, linuxppc-dev@...abs.org, paulus@...ba.org, netdev@...r.kernel.org Subject: Re: question about softirqs On Tue, 2009-05-12 at 11:23 +0200, Ingo Molnar wrote: > > Yeah, that would be "nice". A single IRQ thread plus the process > context(s) doing networking might perform well. > > Multiple IRQ threads (softirq and hardirq threads mixed) i'm not so > sure about - it's extra context-switching cost. Sure, that was implied by the getting rid of softirqs ;-), on -rt we currently suffer this hardirq/softirq thread ping-pong, it sucks. -- 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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