From bd3b9cfd0e190aac81da1180bc09de08d04cfd3e Mon Sep 17 00:00:00 2001
From: Vincent Pelletier <vincent@nexedi.com>
Date: Wed, 17 Nov 2010 13:05:13 +0000
Subject: [PATCH] Micro optimisation: disable/enable function rather than
testing upon call.
git-svn-id: https://svn.erp5.org/repos/neo/trunk@2460 71dcc9de-d417-0410-9af5-da40c76e7ee4
---
neo/storage/database/btree.py | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/neo/storage/database/btree.py b/neo/storage/database/btree.py
index 80b130f6..7cbfc191 100644
--- a/neo/storage/database/btree.py
+++ b/neo/storage/database/btree.py
@@ -41,12 +41,23 @@ def OOBTree():
result = TREE_POOL.pop()
except IndexError:
result = _OOBTree()
+ # Next btree we prune will have room, restore prune method
+ global prune
+ prune = _prune
return result
-def prune(tree):
- if len(TREE_POOL) < MAX_TREE_POOL_SIZE:
- tree.clear()
- TREE_POOL.append(tree)
+def _prune(tree):
+ tree.clear()
+ TREE_POOL.append(tree)
+ if len(TREE_POOL) >= MAX_TREE_POOL_SIZE:
+ # Already at/above max pool size, disable ourselve.
+ global prune
+ prune = _noPrune
+
+def _noPrune(_):
+ pass
+
+prune = _prune
class CreationUndone(Exception):
pass
--
2.30.9