Improved accuracy of sched_trace measurement parsing.

* Measurements from tasks missing > 20% of their scheduling records are
ignored. This is configurable in config/config.py.
* Measurements which only have zero values are ignored.
* If either of these 2 situations are encountered print out a message the
first time using the common.log_once() method. See parse_exps.py for how
this is used with multiple threads.
* Measurements from a task's last job are ignored.
* Miss ratio is calculated only as a fraction of the number of jobs whose
matching release and completion records were found, not just release.

1 files changed, 17 insertions, 0 deletions

diff --git a/common.py b/common.py
index a2c6224..7abf0f2 100644
--- a/common.py
+++ b/common.py
@@ -193,3 +193,20 @@ def is_device(dev):
         return False
     mode = os.stat(dev)[stat.ST_MODE]
     return not (not mode & stat.S_IFCHR)
+
+__logged = []
+
+def set_logged_list(logged):
+    global __logged
+    __logged = logged
+
+def log_once(id, msg = None, indent = True):
+    global __logged
+
+    msg = msg if msg else id
+
+    if id not in  __logged:
+        __logged += [id]
+        if indent:
+            msg = '   ' + msg.strip('\t').replace('\n', '\n\t')
+        sys.stderr.write('\n' + msg.strip('\n') + '\n')