On Tue, Aug 20, 2013 at 11:02 AM, Bhavishya Goel
<bhavishya.g...@gmail.com>wrote:
> Oh, I am using version 3.10.0. I will try with version 3.11-rc6. Thanks. :)
>
>
> 3.10 is not sufficient. HSW support went in 3.11
> On Tue, Aug 20, 2013 at 10:41 AM, Stephane Eranian <eran...@googlemail.com
> > wrote:
>
>>
>>
>>
>> On Tue, Aug 20, 2013 at 9:56 AM, Bhavishya Goel <bhavishya.g...@gmail.com
>> > wrote:
>>
>>> Hi,
>>>
>>> I am trying to use the TSX event modifiers for libpfm4 on Intel Haswell
>>> microarchitecture. But it doesn't seem to be working for me. The counts
>>> that I see for performance events are the same with or without the
>>> intx/intxcp attibute. Following is an example of command that I run:
>>>
>>> task -i -e UNHALTED_CORE_CYCLES:intx ./tsx_example
>>>
>>> The count for UNHALTED_CORE_CYCLES remains the same with and without
>>> intx attribute. The intxcp attribute also doesn't make a difference.
>>> Intel's PCM-TSX tool for the same code shows that cycles spent within
>>> transaction are only 56% of the total cycles.
>>>
>>> And what kernel version are you using?
>> You need kernel support to get Haswell support. In fact, you need
>> 3.11.0-rc5 or so.
>> With any older kernels, the tsx modifiers will be ignored.
>>
>>
>
>
> --
> ಠ_ಠ
>
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