Sysmetrics implementation update

New sysmetrics implementation is based on pidstat command line tool
from sysstat package. Old non-functional implementation was removed.
Reporting was refactored to generate report after each TC from values
already available in memory.
Following files were affected:
	modified:   conf/01_testcases.conf
	modified:   conf/02_vswitch.conf
	modified:   conf/05_collector.conf
	deleted:    core/collector_controller.py
	modified:   core/component_factory.py
	modified:   docs/NEWS.rst
	modified:   packages.txt
	modified:   requirements.txt
	modified:   testcases/testcase.py
	modified:   tools/collectors/collector/collector.py
	modified:   tools/collectors/sysmetrics/__init__.py
	deleted:    tools/collectors/sysmetrics/linuxmetrics.py
	new file:   tools/collectors/sysmetrics/pidstat.py
	modified:   tools/report/report.jinja
	modified:   tools/report/report.py
	modified:   tools/systeminfo.py
	modified:   vsperf

JIRA: VSPERF-67
Change-Id: I25a79f2afef405b9ac46ae85c18044af167a62a4
Signed-off-by: Martin Klozik (martinx.klozik@intel.com)
Reviewed-by: Billy O Mahony <billy.o.mahony@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>
Reviewed-by: Gurpreet Singh <gurpreet.singh@spirent.com>
Reviewed-by: Tv Rao <tv.rao@freescale.com>

1 files changed, 31 insertions, 6 deletions

diff --git a/tools/collectors/collector/collector.py b/tools/collectors/collector/collector.py
index 27a07202..998c1f6f 100644
--- a/tools/collectors/collector/collector.py
+++ b/tools/collectors/collector/collector.py
@@ -15,24 +15,49 @@
 """Abstract "system metrics logger" model.
 """
 
-CMD_PREFIX = 'metricscmd : '
-
 class ICollector(object):
     """This is an abstract class for system metrics loggers.
     """
 
-    def log_mem_stats(self):
-        """Log memory statistics.
+    def start(self):
+        """Starts data collection. This method must be non-blocking.
+        It means, that collector must be executed as a background process.
 
         Where implemented, this function should raise an exception on
         failure.
         """
         raise NotImplementedError('Please call an implementation.')
 
-    def log_cpu_stats(self):
-        """Log cpu statistics.
+    def stop(self):
+        """Stops data collection.
 
         Where implemented, this function should raise an exception on
         failure.
         """
         raise NotImplementedError('Please call an implementation.')
+
+    def get_results(self):
+        """Returns collected results.
+
+        Where implemented, this function should raise an exception on
+        failure.
+        """
+        raise NotImplementedError('Please call an implementation.')
+
+    def print_results(self):
+        """Logs collected results.
+
+        Where implemented, this function should raise an exception on
+        failure.
+        """
+        raise NotImplementedError('Please call an implementation.')
+
+    def __enter__(self):
+        """Starts up collection of statistics
+        """
+        self.start()
+
+    def __exit__(self, type_, value, traceback):
+        """Stops collection of statistics
+        """
+        self.stop()