On Tue, Jan 26, 2021 at 10:33:18AM -0500, Liang, Kan wrote:
>
>
> On 1/26/2021 9:42 AM, Peter Zijlstra wrote:
> > On Tue, Jan 19, 2021 at 12:38:20PM -0800, kan.li...@linux.intel.com wrote:
> >
> > > @@ -900,6 +901,13 @@ enum perf_event_type {
> > >*char
On 1/26/2021 9:42 AM, Peter Zijlstra wrote:
On Tue, Jan 19, 2021 at 12:38:20PM -0800, kan.li...@linux.intel.com wrote:
@@ -900,6 +901,13 @@ enum perf_event_type {
*char data[size]; } && PERF_SAMPLE_AUX
* { u64
On Tue, Jan 19, 2021 at 12:38:20PM -0800, kan.li...@linux.intel.com wrote:
> @@ -900,6 +901,13 @@ enum perf_event_type {
>*char data[size]; } && PERF_SAMPLE_AUX
>* { u64 data_page_size;} &&
> PERF_SAMPLE_DATA_PAGE_SIZE
>*
From: Kan Liang
Current PERF_SAMPLE_WEIGHT sample type is very useful to expresses the
cost of an action represented by the sample. This allows the profiler
to scale the samples to be more informative to the programmer. It could
also help to locate a hotspot, e.g., when profiling by memory
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