From: Lenky Gao <lenky.gao@gmail.com>
To: Lin Feng <linfeng@cn.fujitsu.com>
Cc: linux-kernel@vger.kernel.org, yinghai@kernel.org, mingo@elte.hu,
gorcunov@gmail.com, rusty@rustcorp.com.au, sivanich@sgi.com,
agordeev@redhat.com
Subject: Re: Question: How to distribute the interrupts over multiple cores?
Date: Mon, 25 Mar 2013 17:00:03 +0800 [thread overview]
Message-ID: <CAAO_Xo7CTzow1TN+4bmmHH9KB4NSLRv5ZsOmwEC2KGTxDc-1Ug@mail.gmail.com> (raw)
In-Reply-To: <CAAO_Xo5bbABJOPrC43GtKw3m=bUtqzALoHSHz=f_Dj0QFobqgg@mail.gmail.com>
I have found a comment in function physflat_cpu_mask_to_apicid to explain why.
static unsigned int physflat_cpu_mask_to_apicid(const struct cpumask *cpumask)
{
int cpu;
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
...
This is mean i can not distribute the interrupts over multiple cores
when the machine have more than 8 cores?
--
Regards,
Lenky
next prev parent reply other threads:[~2013-03-25 9:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-25 2:33 Lenky Gao
2013-03-25 2:58 ` Lin Feng
2013-03-25 3:18 ` Lenky Gao
2013-03-25 3:24 ` Lin Feng
2013-03-25 3:44 ` Lenky Gao
2013-03-25 5:19 ` Lin Feng
2013-03-25 6:46 ` Lenky Gao
2013-03-25 7:04 ` Lin Feng
2013-03-25 7:10 ` Lenky Gao
2013-03-25 9:00 ` Lenky Gao [this message]
2013-03-25 9:41 ` Lin Feng
2013-03-25 9:45 ` Lenky Gao
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