[PATCH v2 11/14] PerfRepoUtils: add template functions for netperf

[Ondrej Lichtner]

From: Ondrej Lichtner <olichtne(a)redhat.com&gt;

This adds two new functions that work as templates when working with
Netperf and PerfRepo.

netperf_baseline_template takes a TestModule (Netperf) and a
PerfRepoBaseline object to set the threshold options of the Netperf
module based on data available from the Baseline.

netperf_result_template takes a PerfRepoResult object and result data
returned by a netperf client to add values to the PerfRepoResult object.

These templates are based on how we work with PerfRepo and Netperf so
they might not be useful for everyone.

Signed-off-by: Ondrej Lichtner <olichtne(a)redhat.com&gt;
---
 lnst/Controller/PerfRepoUtils.py | 41 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/lnst/Controller/PerfRepoUtils.py b/lnst/Controller/PerfRepoUtils.py
index 4d30110..4a46a84 100644
--- a/lnst/Controller/PerfRepoUtils.py
+++ b/lnst/Controller/PerfRepoUtils.py
@@ -11,3 +11,44 @@ __author__ = """
 olichtne(a)redhat.com (Ondrej Lichtner)
 """
 
+import logging
+from lnst.Common.Utils import Noop
+
+class PerfRepoTemplateError(Exception):
+    pass
+
+def netperf_baseline_template(module, baseline):
+    if baseline.get_texec() is None:
+        return module
+
+    try:
+        throughput = baseline.get_value('throughput')
+        deviation = baseline.get_value('throughput_deviation')
+    except:
+        raise PerfRepoTemplateError("Invalid baseline TestExecution passed.")
+
+    logging.debug("Setting Netperf threshold.")
+    if throughput is not None and deviation is not None:
+        module.update_options({'threshold': '%s bits/sec' % throughput,
+                               'threshold_deviation': '%s bits/sec' %
deviation})
+    return module
+
+def netperf_result_template(perfrepo_result, netperf_result):
+    if isinstance(perfrepo_result, Noop):
+        return perfrepo_result
+
+    try:
+        result = netperf_result.get_result()
+        res_data = result['res_data']
+        rate = res_data['rate']
+        deviation = res_data['rate_deviation']
+    except:
+        raise PerfRepoTemplateError("Netperf didn't return usable result
data.")
+
+    logging.debug("Adding Netperf results to PerfRepo object.")
+    perfrepo_result.add_value('throughput', rate)
+    perfrepo_result.add_value('throughput_min', rate - deviation)
+    perfrepo_result.add_value('throughput_max', rate + deviation)
+    perfrepo_result.add_value('throughput_deviation', deviation)
+
+    return perfrepo_result
-- 
2.6.1