From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Yuto Nakai <yuto.k2c@gmail.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: Don't mount hardware performance counter using xenoprof
Date: Mon, 10 Jan 2011 09:26:46 -0500 [thread overview]
Message-ID: <20110110142646.GA5019@dumpdata.com> (raw)
In-Reply-To: <AANLkTinyjtACFR510800EsSuOtP13H+OGCJ9TSU5FGWC@mail.gmail.com>
On Sat, Jan 08, 2011 at 04:06:58PM +0900, Yuto Nakai wrote:
> Hi,
>
> I want to use xenoprof to profile the overhead of the hypervisor.
> I patched the oprofile-0.9.5 using the patch from xenoprof.sourceforge.net
>
> Debian GNU/Linux 5.0 (lenny)
> Xen-4.0.1 + 2.6.32.27 (linux-2.6-pvops.git) Dom0
> My platform is Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz
>
> My problems are:
> In Dom0, But hardware performance counters don't be mounted
> after initialization (opcontrol --init)
>
> # ls /dev/oprofile
> backtrace_depth cpu_buffer_size pointer_size
> buffer cpu_type stats
> buffer_size dump time_slice
> buffer_watershed enable
>
> 0(and 1,2,3) directories are not exist.
>
> Is there any reason for this ?
Do they exist when booting a baremetal kernel?
>
> Any help is appreciated. Thanks, Yuto Nakai
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
next prev parent reply other threads:[~2011-01-10 14:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-07 10:12 Don't mount hardware performance counter using xenoprof Yuto Nakai
2011-01-08 7:06 ` Yuto Nakai
2011-01-10 14:26 ` Konrad Rzeszutek Wilk [this message]
2011-01-10 14:53 ` Yuto Nakai
2011-01-10 15:22 ` Konrad Rzeszutek Wilk
2011-01-10 15:34 ` Yuto Nakai
2011-01-10 17:22 ` Konrad Rzeszutek Wilk
-- strict thread matches above, loose matches on Subject: below --
2011-01-07 6:09 Yuto Nakai
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