v0.1.3

jvanasco · Oct 17, 2016 · b007585 · b007585
1 parent 14d0c4c
commit b007585
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Showing 3 changed files with 29 additions and 3 deletions.
diff --git a/CHANGELOG.txt b/CHANGELOG.txt
@@ -1,3 +1,6 @@
+v 0.1.3
+	improved the previous version with a factory for dumps
+
 v 0.1.2
 	aliased loads/dumps on multi functions into a local variable; on larger lists this may be faster
 

diff --git a/dogpile_backend_redis_advanced/__init__.py b/dogpile_backend_redis_advanced/__init__.py
@@ -1,6 +1,6 @@
 from dogpile.cache.region import register_backend
 
-__version__ = '0.1.2'
+__version__ = '0.1.3'
 
 # name, modulepath, objname
 register_backend(

diff --git a/dogpile_backend_redis_advanced/cache/backends/redis_advanced.py b/dogpile_backend_redis_advanced/cache/backends/redis_advanced.py
@@ -25,8 +25,31 @@
 default_loads = pickle.loads
 
 
-def default_dumps(v):
-    return pickle.dumps(v, pickle.HIGHEST_PROTOCOL)
+def default_dumps_factory():
+    """
+    optimized for the cpython compiler. shaves a tiny bit off.
+    this turns 'pickle_dumps' into a local variable to the dump function.
+    original:    
+              0 LOAD_GLOBAL              0 (pickle)
+              3 LOAD_ATTR                1 (dumps)
+              6 LOAD_FAST                0 (v)
+              9 LOAD_GLOBAL              0 (pickle)
+             12 LOAD_ATTR                2 (HIGHEST_PROTOCOL)
+             15 CALL_FUNCTION            2
+             18 RETURN_VALUE            
+    optimized:
+              0 LOAD_DEREF               0 (dumps)
+              3 LOAD_FAST                0 (v)
+              6 LOAD_GLOBAL              0 (pickle)
+              9 LOAD_ATTR                1 (HIGHEST_PROTOCOL)
+             12 CALL_FUNCTION            2
+             15 RETURN_VALUE       
+    """
+    _dumps = pickle.dumps
+    def default_dumps(v):
+        return _dumps(v, pickle.HIGHEST_PROTOCOL)
+    return default_dumps
+default_dumps = default_dumps_factory()
 
 
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