From 461ab871c10f0bc61887b425089e76f7bb54f248 Mon Sep 17 00:00:00 2001
From: Pavlos Christoforou <pavlos@p9ft.com>
Date: Wed, 15 Oct 2014 14:35:10 +0200
Subject: [PATCH] Update Py.py

try this one ...
---
 Py.py | 61 +++++++++++++++++++++++++++++++++++------------------------
 1 file changed, 36 insertions(+), 25 deletions(-)

diff --git a/Py.py b/Py.py
index 7ffbb0e..1ea49d5 100644
--- a/Py.py
+++ b/Py.py
@@ -1,7 +1,8 @@
 import time
-NUM_RECORDS = 50* 1000 * 444
+NUM_RECORDS = 50 * 1000 * 444
 
-class PyMemTrade():
+class PyMemTrade(object):
+    __slots__ = ('tradeId', 'clientId', 'venueId', 'instrumentCode','price','quantity','side')
     def __init__(self, tradeId, clientId, venueId, instrumentCode, price, quantity, side):
         self.tradeId = tradeId
         self.clientId = clientId
@@ -10,33 +11,43 @@ def __init__(self, tradeId, clientId, venueId, instrumentCode, price, quantity,
         self.price = price
         self.quantity = quantity
         self.side = side
+        
 
 def initTrades(trades):
-	for i in range(0, NUM_RECORDS):
-		aside = ''
-		if (i % 2 == 0):
-			aside = 'B'
-		else:
-			aside = 'S'
-		trades[i] = PyMemTrade(i,1,123,321,i,i,aside)
+    for i in xrange(0, NUM_RECORDS):
+        t = trades[i]
+        t.tradeId = i
+        t.clientId = 1
+        t.venueId = 123
+        t.instrumentCode = 321
+        t.price = i
+        t.quantity = i
+
+        if (i % 2 == 0):
+            t.side = 'B'
+        else:
+            t.side = 'S'
+
+
 
 def perfRun(runNum, trades):
-	start = time.time() * 1000
-	initTrades(trades)
-	buyCost = 0
-	sellCost = 0
-	for i in range(0, NUM_RECORDS):
-		trade = trades[i]
-		if (trade.side == 'B'):
-                	buyCost += trade.price * trade.quantity
-		else:
-                	sellCost += trade.price * trade.quantity      
- 	
-	end = time.time() * 1000
-	duration = end - start
-	print(str(runNum) + " - duration " + str(int(duration)) + "ms\n")
-	#print(runNum, " - duration ", duration, "ms\n") 		This prints weird on Pypy
-	print("buyCost = ", buyCost, " sellCost = ", sellCost, "\n")
+    start = time.time() * 1000
+    initTrades(trades)
+    buyCost = 0
+    sellCost = 0
+    for i in xrange(0, NUM_RECORDS):
+        t = trades[i]
+        
+        if (t.side == 'B'):
+            buyCost += t.price * t.quantity
+        else:
+            sellCost += t.price * t.quantity      
+            
+    end = time.time() * 1000
+    duration = end - start
+    print(str(runNum) + " - duration " + str(int(duration)) + "ms\n")
+    #print(runNum, " - duration ", duration, "ms\n") 		This prints weird on Pypy
+    print("buyCost = ", buyCost, " sellCost = ", sellCost, "\n")
 
 if __name__ == '__main__':
 	trades = [PyMemTrade(0,0,0,0,0,0,'0') for i in range(NUM_RECORDS)]