[PATCH V3 0/6] perf/tools: Add interface to expose vpa dtl
Adrian Hunter
adrian.hunter at intel.com
Wed Sep 17 15:58:27 AEST 2025
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>
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