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-rw-r--r--ChangeLog8
-rwxr-xr-xbenchtests/scripts/compare_bench.py7
2 files changed, 12 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index 953a047fbd..1b0fff4359 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 2018-12-12  Leonardo Sandoval  <leonardo.sandoval.gonzalez@intel.com>
 
+	* benchtests/scripts/compare_bench.py (do_compare): write to
+	stderr in casestat is not present.
+	* benchtests/scripts/compare_bench.py (plot_graphs): write to
+	stderr in case timings field is not present. Also string showing
+	the output filename goes into the stderr.
+
+2018-12-12  Leonardo Sandoval  <leonardo.sandoval.gonzalez@intel.com>
+
 	* benchtests/scripts/compare_bench.py (do_compare): Catch KeyError
 	and ZeroDivisorError exceptions.
 	* benchtests/scripts/compare_bench.py (compare_runs): Use stats
diff --git a/benchtests/scripts/compare_bench.py b/benchtests/scripts/compare_bench.py
index f0c9bf7a7d..eaddc57e4e 100755
--- a/benchtests/scripts/compare_bench.py
+++ b/benchtests/scripts/compare_bench.py
@@ -47,6 +47,7 @@ def do_compare(func, var, tl1, tl2, par, threshold):
         v2 = tl2[str(par)]
         d = abs(v2 - v1) * 100 / v1
     except KeyError:
+        sys.stderr.write('%s(%s)[%s]: stat does not exist\n' % (func, var, par))
         return
     except ZeroDivisionError:
         return
@@ -85,7 +86,7 @@ def compare_runs(pts1, pts2, threshold, stats):
             # timing info for the function variant.
             if 'timings' not in pts1['functions'][func][var].keys() or \
                 'timings' not in pts2['functions'][func][var].keys():
-                    continue
+                continue
 
             # If two lists do not have the same length then it is likely that
             # the performance characteristics of the function have changed.
@@ -133,7 +134,7 @@ def plot_graphs(bench1, bench2):
             # No point trying to print a graph if there are no detailed
             # timings.
             if u'timings' not in bench1['functions'][func][var].keys():
-                print('Skipping graph for %s(%s)' % (func, var))
+                sys.stderr.write('Skipping graph for %s(%s)\n' % (func, var))
                 continue
 
             pylab.clf()
@@ -157,7 +158,7 @@ def plot_graphs(bench1, bench2):
                 filename = "%s-%s.png" % (func, var)
             else:
                 filename = "%s.png" % func
-            print('Writing out %s' % filename)
+            sys.stderr.write('Writing out %s' % filename)
             pylab.savefig(filename)
 
 def main(bench1, bench2, schema, threshold, stats):