[PATCH V3 0/6] perf/tools: Add interface to expose vpa dtl
Athira Rajeev
atrajeev at linux.ibm.com
Fri Sep 26 14:53:56 AEST 2025
> On 25 Sep 2025, at 9:57 PM, Arnaldo Carvalho de Melo <arnaldo.melo at gmail.com> wrote:
>
>
>
> On September 25, 2025 6:21:19 PM GMT+02:00, Athira Rajeev <atrajeev at linux.ibm.com> wrote:
>>
>>
>>> On 17 Sep 2025, at 11:28 AM, Adrian Hunter <adrian.hunter at intel.com> wrote:
>>>
>>> On 16/09/2025 08:25, Athira Rajeev wrote:
>>>> The pseries Shared Processor Logical Partition(SPLPAR) machines can
>>>> retrieve a log of dispatch and preempt events from the hypervisor
>>>> using data from Disptach Trace Log(DTL) buffer. With this information,
>>>> user can retrieve when and why each dispatch & preempt has occurred.
>>>> The vpa-dtl PMU exposes the Virtual Processor Area(VPA) DTL counters
>>>> via perf.
>>>>
>>>> - Patch 1 to 6 is perf tools side code changes to enable perf
>>>> report/script on perf.data file
>>>
>>> For all patches 1 to 6:
>>>
>>> Reviewed-by: Adrian Hunter <adrian.hunter at intel.com>
>>
>> Hi All,
>>
>> Looking for further comments if any on this patchset.
>> The kernel side patches for this feature which was sent as separate series is pulled to powerpc tree by Maddy
>>
>> If the tools side changes looks good, can we have this merged to perf tools tree ?
>
>
> Sure, I'll look at it soon now that the kernel part is merged.
>
> - Arnaldo
Sure, thanks Arnaldo
Athira
>>
>> Thanks
>> Athira
>>
>>>
>>
>
> - Arnaldo
More information about the Linuxppc-dev
mailing list