linux-kernel - Re: Question: How to distribute the interrupts over multiple cores?

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Message-ID: <CAAO_Xo7edAuiGQaXHuyWB5RPgPd5dDDRof3-d28eu+mryJkv+Q@mail.gmail.com>
Date:	Mon, 25 Mar 2013 11:18:06 +0800
From:	Lenky Gao <lenky.gao@...il.com>
To:	Lin Feng <linfeng@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org, yinghai@...nel.org, mingo@...e.hu,
	gorcunov@...il.com, rusty@...tcorp.com.au, sivanich@....com,
	agordeev@...hat.com
Subject: Re: Question: How to distribute the interrupts over multiple cores?

> Seems you bind the nic irq to second and third cpu for the bit mask
> you set is 110, so now eth9's irq is working on the 3rd cpu.

> Have you ever tried irqbalance service? It may help to balance irq if the
> irq workload of 3rd cpu is too heavy.


I need the interrupts distribute over multiple cores, such as the
second and third, so i set the mask parameter to 0x3. But only one
core is handling the interrupts. As you can see, just the second cpu's
irq number has increased.

The irqbalance service has been stopped.

-- 
Regards,

Lenky
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