1 files changed, 129 insertions, 0 deletions
diff --git a/scipy/weave/tests/scxx_timings.py b/scipy/weave/tests/scxx_timings.py
new file mode 100644
index 000000000..6ab9f62d0
--- /dev/null
+++ b/scipy/weave/tests/scxx_timings.py
@@ -0,0 +1,129 @@
+import weave
+import time
+
+force = 0
+N = 1000000
+
+def list_append_scxx(a,Na):
+    code = """
+           for(int i = 0; i < Na;i++)
+               a.append(i);  
+           """
+    weave.inline(code,['a','Na'],force=force,verbose=2,compiler='gcc')
+
+def list_append_c(a,Na):
+    code = """
+           for(int i = 0; i < Na;i++)
+           {
+               PyObject* oth = PyInt_FromLong(i);
+               int res = PyList_Append(py_a,oth);
+               Py_DECREF(oth);
+               if(res == -1)
+               {
+                 PyErr_Clear();  //Python sets one 
+                 throw_error(PyExc_RuntimeError, "append failed");
+               }  
+           }
+           """
+    weave.inline(code,['a','Na'],force=force,compiler='gcc')
+
+def list_append_py(a,Na):
+    for i in xrange(Na):
+        a.append(i)
+
+def time_list_append(Na):
+    """ Compare the list append method from scxx to using the Python API
+        directly.
+    """
+    print 'list appending times:', 
+
+    a = []
+    t1 = time.time()
+    list_append_c(a,Na)
+    t2 = time.time()
+    print 'py api: ', t2 - t1, '<note: first time takes longer -- repeat below>'
+    
+    a = []
+    t1 = time.time()
+    list_append_c(a,Na)
+    t2 = time.time()
+    print 'py api: ', t2 - t1
+    
+    a = []
+    t1 = time.time()
+    list_append_scxx(a,Na)
+    t2 = time.time()
+    print 'scxx:   ', t2 - t1    
+    
+    a = []
+    t1 = time.time()
+    list_append_c(a,Na)
+    t2 = time.time()
+    print 'python: ', t2 - t1
+
+#----------------------------------------------------------------------------
+#
+#----------------------------------------------------------------------------
+
+def list_copy_scxx(a,b):
+    code = """
+           for(int i = 0; i < a.length();i++)
+               b[i] = a[i];  
+           """
+    weave.inline(code,['a','b'],force=force,verbose=2,compiler='gcc')
+
+def list_copy_c(a,b):
+    code = """
+           for(int i = 0; i < a.length();i++)
+           {
+               int res = PySequence_SetItem(py_b,i,PyList_GET_ITEM(py_a,i));
+               if(res == -1)
+               {
+                 PyErr_Clear();  //Python sets one 
+                 throw_error(PyExc_RuntimeError, "append failed");
+               }  
+           }
+           """
+    weave.inline(code,['a','b'],force=force,compiler='gcc')
+
+def list_copy_py(a,b):
+    for item in a:
+        b[i] = item
+
+def time_list_copy(N):
+    """ Compare the list append method from scxx to using the Python API
+        directly.
+    """
+    print 'list copy times:', 
+
+    a = [0] * N
+    b = [1] * N
+    t1 = time.time()
+    list_copy_c(a,b)
+    t2 = time.time()
+    print 'py api: ', t2 - t1, '<note: first time takes longer -- repeat below>'
+    
+    a = [0] * N
+    b = [1] * N
+    t1 = time.time()
+    list_copy_c(a,b)
+    t2 = time.time()
+    print 'py api: ', t2 - t1
+    
+    a = [0] * N
+    b = [1] * N
+    t1 = time.time()
+    list_copy_scxx(a,b)
+    t2 = time.time()
+    print 'scxx:   ', t2 - t1    
+    
+    a = [0] * N
+    b = [1] * N
+    t1 = time.time()
+    list_copy_c(a,b)
+    t2 = time.time()
+    print 'python: ', t2 - t1
+            
+if __name__ == "__main__":
+    #time_list_append(N)
+    time_list_copy(N)
+\ No newline at end of file