Hi!
Can someone please commit the attached patch or give me write access to the
repository. The patch gives a mild speed up (up to factor 2.5) and
significantly reduces memory usage for scenarios that involve installed
packages (largest drop is 438 to 102 MB for "remove glibc"; bigger updates
drop from 160 to 107 MB)
Have fun
Florian
>From f1330be1101d153a7d7c25e79aae2c273b32556b Mon Sep 17 00:00:00 2001
From: Florian Festi <[EMAIL PROTECTED]>
Date: Tue, 14 Aug 2007 12:14:51 +0200
Subject: [PATCH] keep a dict of POs in the RpmSack to avoid having several instances of a package at once.
---
yum/rpmsack.py | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/yum/rpmsack.py b/yum/rpmsack.py
index c2d5e52..1bed494 100644
--- a/yum/rpmsack.py
+++ b/yum/rpmsack.py
@@ -46,6 +46,7 @@ class RPMDBPackageSack(PackageSackBase):
def __init__(self, root='/'):
self.root = root
+ self._idx2pkg = {}
self._header_dict = {}
self._header_by_name = {}
self.ts = None
@@ -285,8 +286,11 @@ class RPMDBPackageSack(PackageSackBase):
def _makePackageObject(self, hdr, index):
+ if self._idx2pkg.has_key(index):
+ return self._idx2pkg[index]
po = YumInstalledPackage(hdr)
po.idx = index
+ self._idx2pkg[index] = po
return po
def _hdr2pkgTuple(self, hdr):
--
1.5.2.2
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