add knife tools

knife/tools.lua

@@ -0,0 +1,15 @@
+-- returns the PID and memory peak of lua process itself
+local process_information = function ()
+  local result = { memory_peak = 0, PID = nil}
+  for lines in io.lines ('/proc/self/status') do
+    if (lines:find ("Pid:") == 1) then
+      result["PID"] = lines:match ("%d+")
+    end
+    if (lines:find ("VmPeak:") == 1) then
+      result["memory_peak"] = lines:match ("%d+")
+    end
+  end
+  return result
+end
+
+return { process_information = process_information }

knife/tools.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Thu Nov 24 12:09:33 2016
+
+@author: markus
+"""
+
+# returns the PID and memory peak of python process itself
+def process_information ():
+    result = {'memory_peak': 0, 'PID': None}
+    fh = open('/proc/self/status')
+    for line in fh:
+        if (line.find ("VmPeak:") == 0):
+            result["memory_peak"] = float (line.split (":")[1].strip ().split (" ")[0])
+        if (line.find ("Pid:") == 0):
+            result["PID"] = int (line.split (":")[1].strip ())
+    fh.close ()
+    return result
+