Fix getThreads() in metrics script.

Bug introduced by pull request #191.

https://git.rhrk.uni-kl.de/EIT-Wehn/dram.vp.system/pull/191

Tests with refresh disabled made the bug evident.

DRAMSys/traceAnalyzer/scripts/memUtil.py

@@ -90,3 +90,9 @@ def getMaxRefBurst(connection):
     cursor.execute(" SELECT  MaxRefBurst FROM GeneralInfo ")
     result = cursor.fetchone()
     return result[0]
+
+def getControllerThread(connection):
+    cursor = connection.cursor()
+    cursor.execute("SELECT ControllerThread FROM GeneralInfo")
+    result = cursor.fetchone()
+    return result[0]

DRAMSys/traceAnalyzer/scripts/metrics.py

@@ -18,8 +18,10 @@ def threadMetric(function):
 
 
 def getThreads(connection):
+    cthread = getControllerThread(connection)
     cursor = connection.cursor()
-    cursor.execute("SELECT DISTINCT(TThread) FROM transactions WHERE TThread != 0 ORDER BY TThread")
+    query = "SELECT DISTINCT(TThread) FROM transactions WHERE TThread != " + str(cthread) + " ORDER BY TThread"
+    cursor.execute(query)
     result = []
     for currentRow in cursor:
         result.append(currentRow[0])