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authorMaryam Tahhan <maryam.tahhan@intel.com>2016-01-28 20:00:11 +0000
committerMaryam Tahhan <maryam.tahhan@intel.com>2016-01-28 20:02:34 +0000
commit9685088224d2fe542026a6ecbc31a212e3dca3e9 (patch)
treeedcc1c6242e8d4643081fd1356d62baa18854061 /tools/report
parent3c92d7e0ceaebd80d8bcc9a168ae1754c4fe6e22 (diff)
docs: Add a note on pidstat and unknown results.
Add a Note on why %CPU and %USER > 100%, as well as a note regarding the "unkown" results. Change-Id: I7e173c91a549932301645c9344648c9b73da4a70 Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com> Reviewed-by: Brian Castelli <brian.castelli@spirent.com> Reviewed-by: Al Morton <acmorton@att.com> Reviewed-by: Martin Klozik <martinx.klozik@intel.com>
Diffstat (limited to 'tools/report')
-rw-r--r--tools/report/report_rst.jinja10
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/report/report_rst.jinja b/tools/report/report_rst.jinja
index 86008d16..7f513fc4 100644
--- a/tools/report/report_rst.jinja
+++ b/tools/report/report_rst.jinja
@@ -77,6 +77,12 @@ No anomalies were detected during the course of this test.
Testing Activities/Events
~~~~~~~~~~~~~~~~~~~~~~~~~
-There were no significant testing activities for this test.
-
+pidstat is used to collect the process statistics, as such some values such as
+%CPU and %USER maybe > 100% as the values are summed across multiple cores. For
+more info on pidstat please see: http://linux.die.net/man/1/pidstat.
+Known issues: Some reported metrics have the value "unkown". These values are
+marked unknown as they are not values retrieved from the external tester
+(traffic generator). They were incorrectly derived in a way that made assumptions
+about packet sizes, as such they have been deprecated from vsperf and marked as
+unknown. They will be resolved in the next release.