Yes, updating to the latest kernel fixed the problem. Thanks.
On Fri, Aug 22, 2014 at 4:13 AM, Stephane Eranian
wrote:
> On Thu, Aug 21, 2014 at 2:25 PM, Bhavishya Goel
> wrote:
> > Thanks Vince. I will upgrade the kernel and try again.
> >
> I was going to ask you for your kernel version.
> y
On Thu, Aug 21, 2014 at 2:25 PM, Bhavishya Goel
wrote:
> Thanks Vince. I will upgrade the kernel and try again.
>
I was going to ask you for your kernel version.
you need a recent kernel. OFFCORE_RESPONE needs some kernel support which
was either missing or broken for IvyBridge in the kernel you a
On Thu, 21 Aug 2014, Bhavishya Goel wrote:
> The same command with same benchmark works fine on Nehalem and Haswell. My
> kernel version is a bit old (3.2.0). Can it be because of that?
yes, offcore was broken in the kernel in a way that couldn't be detected
for a while. I think it wasn't fixed
Thanks Vince. I will upgrade the kernel and try again.
On Thu, Aug 21, 2014 at 2:29 PM, Vince Weaver
wrote:
> On Thu, 21 Aug 2014, Bhavishya Goel wrote:
>
> > The same command with same benchmark works fine on Nehalem and Haswell.
> My
> > kernel version is a bit old (3.2.0). Can it be because
Hi,
I am trying to use the offcore pmu counters on my Ivy Bridge processor
(model Core-i7 3770) with libpfm 4.5.0. But I always get zero value for
these counters. For example:
task -i -e L2_RQSTS:RFO_MISS,OFFCORE_RESPONSE_0:ANY_REQUEST:ANY_RESPONSE
./cmd 4
65 580 863 L2_RQSTS:RFO_MISS (0,00% sca
