RE: [PATCH V3] perf: Add PERF_SAMPLE_PHYS_ADDR

2017-08-17 Thread Liang, Kan
> On Wed, Aug 9, 2017 at 1:42 PM, wrote: > > From: Kan Liang > > > > For understanding how the workload maps to memory channels and > hardware > > behavior, it's very important to collect address maps with physical > > addresses. For example, 3D XPoint access can only be found by filtering > >

Re: [PATCH V3] perf: Add PERF_SAMPLE_PHYS_ADDR

2017-08-17 Thread Stephane Eranian
On Wed, Aug 9, 2017 at 1:42 PM, wrote: > From: Kan Liang > > For understanding how the workload maps to memory channels and hardware > behavior, it's very important to collect address maps with physical > addresses. For example, 3D XPoint access can only be found by filtering > the physical addr

[PATCH V3] perf: Add PERF_SAMPLE_PHYS_ADDR

2017-08-09 Thread kan . liang
From: Kan Liang For understanding how the workload maps to memory channels and hardware behavior, it's very important to collect address maps with physical addresses. For example, 3D XPoint access can only be found by filtering the physical address. However, perf doesn't collect physical address