From: Andi Kleen <andi@firstfloor.org>
To: Animesh K Trivedi1 <ZRLATR@ch.ibm.com>
Cc: linux-perf-users@vger.kernel.org, Bernard Metzler <BMT@zurich.ibm.com>
Subject: Re: cboxes on NehalemEX
Date: Wed, 28 Nov 2012 12:33:22 -0800 [thread overview]
Message-ID: <m2fw3th3hp.fsf@firstfloor.org> (raw)
In-Reply-To: <OF1ABEA8BA.B758F3D3-ONC1257AB8.00507893-C1257AB8.00512F18@ch.ibm.com> (Animesh K. Trivedi1's message of "Fri, 16 Nov 2012 15:46:36 +0100")
Animesh K Trivedi1 <ZRLATR@ch.ibm.com> writes:
> Hi all,
>
> I'm testing/using uncore support on a dual socket NehalemEX (Xeon E7520)
> box on 3.7-rc1.
> It shows me only 4 CBOXes under devices. Although the document (Uncore
> programming
> for 7500) says that there should be 8 CBOXes. Am I missing something?
The number of CBOXes depends on the number of CPU cores in the socket.
Each core has a CBOX. You would only see 8 on a 8 core CPU.
> get a global view of LLC behaviour shouldn't I have to sum up the count of
> events from all
> physical processor's CBOXes.
Yes. Each BOX has its own counters.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2012-11-28 20:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-16 14:46 cboxes on NehalemEX Animesh K Trivedi1
2012-11-28 20:33 ` Andi Kleen [this message]
2012-11-29 9:15 ` Animesh K Trivedi1
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=m2fw3th3hp.fsf@firstfloor.org \
--to=andi@firstfloor.org \
--cc=BMT@zurich.ibm.com \
--cc=ZRLATR@ch.ibm.com \
--cc=linux-perf-users@vger.kernel.org \
/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.