Oh, I am using version 3.10.0. I will try with version 3.11-rc6. Thanks. :)
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.
>
>
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