Hi,

What is your CPU ?

Regarding the perf version, on my Ubuntu 13.04 running linux 3.11.0-15 I successfully installed the associated perf version using:

sudo apt-get install linux-tools-3.11.0-15-generic


Manu

On 02/18/2014 05:51 PM, Martin Ichilevici de Oliveira wrote:
Hello,

I'm still learning perf, so I apologize in advance if my questions are
too simple and not suited here. I did, however, searched the web and
tried to find a solution by myself before posting to this mailing
list.

 From my manufacturer's manual, I chose an event I'm interested in
monitoring. They also list unit masks, as below:

UnitMask    Description
7                  From Local node to Node 7
6                  From Local node to Node 6
5                  From Local node to Node 5
4                  From Local node to Node 4
3                  From Local node to Node 3
2                  From Local node to Node 2
1                  From Local node to Node 1
0                  From Local node to Node 0

The event is "CPU to DRAM Requests to Target Node" (NUMA machine) and
it's number is 0x1E0. As I understood, I should precede the event with
the unit mask. So, for example, if I'm interested in unit mask 2, I
should type:

perf stat -e r21e0 /bin/ls

However, this results in a <not supported> message. This happened for
all events that have a unit mask that I tried. Other events worked
fine.

I'm not sure whether I'm giving the right command or this is a problem
with perf/kernel version. As it turned out, I'm running Ubuntu with
kernel 3.11.10-03111002, but the latest available perf version from
the repositories is 3.8.0-35, which is the one I'm using.

Any help is appreciated.

Thank you,
Martin
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