diff --git a/tools/parsememdump.py b/tools/parsememdump.py
old mode 100755
new mode 100644
index 1c8d4eeec8..ecb3b99d35
--- a/tools/parsememdump.py
+++ b/tools/parsememdump.py
@@ -115,10 +115,27 @@ if __name__ == "__main__":
     list.sort(key=lambda x: x.cnt, reverse=True)
 
     log = log_output(args)
+    total_dir = {}
+    for t in list:
+        if t.pid in total_dir:
+            total_dir[t.pid] += t.size
+        else:
+            total_dir.setdefault(t.pid, t.size)
+
+    log.output("total memory used for ervey pid\n")
+    log.output("pid       total size\n")
+    total_size = 0
+    for pid, size in sorted(total_dir.items(), key=lambda x: x[1]):
+        log.output("%-3d       %-6d\n" % (pid, size))
+        total_size += size
+    log.output("all used memory %-6d\n" % (total_size))
+
     log.output("cnt   size   pid   addr         mem\n")
     for t in list:
         memstr = ""
         log.output("%-4d  %-6d %-3d   %s   " % (t.cnt, t.size, t.pid, t.addr))
+        if t.mem == []:
+            continue
         for mem in t.mem:
             log.output("%s " % mem)
             memstr += mem + " "