Messages in this thread | | | Date | Mon, 28 May 2018 16:54:12 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH] perf docu: Update section on cpu topology |
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Em Mon, May 28, 2018 at 09:44:33AM +0200, Thomas Richter escreveu: > Add an explanation of each cpu's core and socket > identifier to the documentation.
Thanks, applying. I guess it is not that worth to mention that older files may have just the string lists, right?
- Arnaldo
> Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> > --- > tools/perf/Documentation/perf.data-file-format.txt | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt > index d00f0d51cab8..c57904a526ce 100644 > --- a/tools/perf/Documentation/perf.data-file-format.txt > +++ b/tools/perf/Documentation/perf.data-file-format.txt > @@ -153,10 +153,18 @@ struct { > HEADER_CPU_TOPOLOGY = 13, > > String lists defining the core and CPU threads topology. > +The string lists are followed by a variable length array > +which contains core_id and socket_id of each cpu. > +The number of entries can be determined by the size of the > +section minus the sizes of both string lists. > > struct { > struct perf_header_string_list cores; /* Variable length */ > struct perf_header_string_list threads; /* Variable length */ > + struct { > + uint32_t core_id; > + uint32_t socket_id; > + } cpus[nr]; /* Variable length records */ > }; > > Example: > -- > 2.14.3
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