From: Stephane Eranian <eranian@hpl.hp.com>
To: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: perfmon@napali.hpl.hp.com, linux-kernel@vger.kernel.org
Subject: Re: [perfmon] Re: cpuinfo_x86 and apicid
Date: Thu, 6 Jul 2006 15:37:45 -0700 [thread overview]
Message-ID: <20060706223745.GD10760@frankl.hpl.hp.com> (raw)
In-Reply-To: <20060706222543.GC10760@frankl.hpl.hp.com>
Suresh,
On Thu, Jul 06, 2006 at 03:25:43PM -0700, Stephane Eranian wrote:
> >
> Ah, yes I missed that. It works there two. I had something wrong
> about how I accessed cpu_data. I am used to the elegant way we
> do it on IA-64 but on x86_64 you have to index the cpu_data[]
> array with smp_processor_id(). I was pointing to cpu_data[0]
> on all processors.
>
> For what I need, I can do cpuinfo_x86->apicid & 0x3 to identify
> which thread is running. I can now remove some more code in perfmon2.
>
I meant cpuinfo_x86->apicid & 0x1.
--
-Stephane
next prev parent reply other threads:[~2006-07-06 22:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-06 15:01 cpuinfo_x86 and apicid Stephane Eranian
2006-07-06 15:27 ` linux-os (Dick Johnson)
2006-07-06 16:19 ` Siddha, Suresh B
2006-07-06 20:00 ` Stephane Eranian
2006-07-06 21:06 ` Siddha, Suresh B
2006-07-06 22:25 ` Stephane Eranian
2006-07-06 22:37 ` Stephane Eranian [this message]
2006-07-06 22:47 ` [perfmon] " Siddha, Suresh B
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