linux-kernel - Re: Irq architecture for multi-core network driver.

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Message-Id: <20091023.201928.12664693.davem@davemloft.net>
Date:	Fri, 23 Oct 2009 20:19:28 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jesse.brandeburg@...il.com
Cc:	ebiederm@...ssion.com, ddaney@...iumnetworks.com,
	cfriesen@...tel.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org
Subject: Re: Irq architecture for multi-core network driver.

From: Jesse Brandeburg <jesse.brandeburg@...il.com>
Date: Fri, 23 Oct 2009 10:28:10 -0700

> Yes, I know Arjan and others will say you should always run
> irqbalance, but some people don't and some distros don't ship it
> enabled by default (or their version doesn't work for one reason or
> another)  The question is should the kernel work better by default
> *without* irqbalance loaded, or does it not matter?

I think requiring irqbalanced for optimal behavior is more
than reasonable.

And since we explicitly took that policy logic out of the
kernel it makes absolutely no sense to put it back there.

It's policy, and policy is (largely) userspace.
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