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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-05-25 16:37:36 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-05-30 15:40:26 -0300
commit18a7057420f8b67f15d17087bf5c0863db752c8b (patch)
treec5a62cf747bd1c155a991a545becc0ca8c578eb5
parent943f32a0e8a4ea513dc68b00720a6c65842135e8 (diff)
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perf tools: Fix perf.data format description of NRCPUS header
In the perf.data HEADER_CPUDESC feadure header we store first the number of available CPUs in the system, then the number of CPUs at the time of writing the header, not the other way around. Reported-by: Thomas-Mich Richter <tmricht@linux.ibm.com> Acked-by: Andi Kleen <ak@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Lakshman Annadorai <lakshmana@google.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Simon Que <sque@chromium.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-j7o92acm2vnxjv70y4o3swoc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/Documentation/perf.data-file-format.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt
index c57904a526ce..dfb218feaad9 100644
--- a/tools/perf/Documentation/perf.data-file-format.txt
+++ b/tools/perf/Documentation/perf.data-file-format.txt
@@ -111,8 +111,8 @@ A perf_header_string with the CPU architecture (uname -m)
A structure defining the number of CPUs.
struct nr_cpus {
- uint32_t nr_cpus_online;
uint32_t nr_cpus_available; /* CPUs not yet onlined */
+ uint32_t nr_cpus_online;
};
HEADER_CPUDESC = 8,