start refactor survex import

core/models.py

@@ -3,6 +3,7 @@ import os
 import datetime
 import logging
 import re
+import resource
 from subprocess import call
 
 from urllib.parse import urljoin
@@ -22,6 +23,11 @@ from django.template import Context, loader
 
 import troggle.core.models_survex 
 
+def get_process_memory():
+    usage=resource.getrusage(resource.RUSAGE_SELF)
+    return usage[2]/1024.0 
+
+
 def get_related_by_wikilinks(wiki_text):
     found=re.findall(settings.QM_PATTERN,wiki_text)
     res=[]