On Fri, Mar 09, 2018 at 11:56:43AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Fri, Mar 09, 2018 at 11:14:42AM +0100, Jiri Olsa escreveu:
> > Adding the 'PA cnt' column grouped under data cacheline address.
> > 
> > It shows how many times the physical addresses changed for the
> > hist entry. It does not show the number of different physical
> > addresses for entry, because we don't store those. We only track
> > the number of times we got different address than we currently
> > hold, which is not expensive and gives similar info.
> > 
> >   $ perf c2c report --stdio
> > 
> >   #        ----------- Cacheline ----------    Total      Tot  ----- LLC 
> > Load Hitm -----
> >   # Index             Address  Node  PA cnt  records     Hitm    Total      
> > Lcl      Rmt
> >   # .....  ..................  ....  ......  .......  .......  .......  
> > .......  .......
> >   #
> 
> 
> I'm adding this to the docs, ack?

nope.. those fields are c2c report only.. hardcoded

I'm preparing a change to share c2c fields with the
general report.. should come with other perf mem
changes later

jirka

> 
> diff --git a/tools/perf/Documentation/perf-report.txt 
> b/tools/perf/Documentation/perf-report.txt
> index cba16d8a970e..f4a280428e28 100644
> --- a/tools/perf/Documentation/perf-report.txt
> +++ b/tools/perf/Documentation/perf-report.txt
> @@ -127,7 +127,7 @@ OPTIONS
>  
>       If the --mem-mode option is used, the following sort keys are also 
> available
>       (incompatible with --branch-stack):
> -     symbol_daddr, dso_daddr, locked, tlb, mem, snoop, dcacheline.
> +     symbol_daddr, dso_daddr, locked, tlb, mem, snoop, dcacheline, 
> dcacheline_count.
>  
>       - symbol_daddr: name of data symbol being executed on at the time of 
> sample
>       - dso_daddr: name of library or module containing the data being 
> executed
> @@ -137,6 +137,7 @@ OPTIONS
>       - mem: type of memory access for the data at the time of the sample
>       - snoop: type of snoop (if any) for the data at the time of the sample
>       - dcacheline: the cacheline the data address is on at the time of the 
> sample
> +     - dcacheline_count: the number of physical addresses sampled for this 
> dcacheline
>       - phys_daddr: physical address of data being executed on at the time of 
> sample
>  
>       And the default sort keys are changed to local_weight, mem, sym, dso,

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