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 12:22:01 -0500 [thread overview]
Message-ID: <20110110172201.GA30164@dumpdata.com> (raw)
In-Reply-To: <AANLkTikn=NokCwMAQjXN1r=j=ZnAWSCcGKNku44848Z0@mail.gmail.com>
On Tue, Jan 11, 2011 at 12:34:58AM +0900, Yuto Nakai wrote:
> 2011/1/11 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
>
> > > > Do they exist when booting a baremetal kernel?
> > > >
> > > >
> > > Thank you for your response.
> > >
> > >
> > > Does booting a baremetal kernel means booting Dom0?
> >
> > No. Baremetal means booting the same kernel but without the Xen hypervisor.
> >
>
> I understood.
>
> They exist when booting a baremetal kernel.
Ok, then the answer is that nobody has looked in a long time (I think
since 2.6.18) to hook up the oprofile (or rather the code that
that gets invoked when a perf counter is triggered) to the Xen hypervisor.
It might make sense to look at how 2.6.18 did it (especially what were
the hypercalls and where) and see how to port it over to a pvops kernel.
next prev parent reply other threads:[~2011-01-10 17:22 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
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 [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-01-07 6:09 Yuto Nakai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110110172201.GA30164@dumpdata.com \
--to=konrad.wilk@oracle.com \
--cc=xen-devel@lists.xensource.com \
--cc=yuto.k2c@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.