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Posted to mod_python-dev@quetz.apache.org by "Nicolas Lehuen (JIRA)" <ji...@apache.org> on 2005/01/22 14:04:19 UTC
[jira] Created: (MODPYTHON-8) Improve apache.load_module with a two-level locking scheme
Improve apache.load_module with a two-level locking scheme
----------------------------------------------------------
Key: MODPYTHON-8
URL: http://issues.apache.org/jira/browse/MODPYTHON-8
Project: mod_python
Type: Improvement
Versions: 3.1.3
Reporter: Nicolas Lehuen
Assigned to: Nicolas Lehuen
Fix For: 3.1.4
We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
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[jira] Closed: (MODPYTHON-8) Improve apache.load_module with a
two-level locking scheme
Posted by "Graham Dumpleton (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MODPYTHON-8?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Graham Dumpleton closed MODPYTHON-8.
------------------------------------
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: https://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Issue Type: Improvement
> Components: importer
> Affects Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assigned To: Graham Dumpleton
> Fix For: 3.3
>
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
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[jira] Reopened: (MODPYTHON-8) Improve apache.load_module with a two-level locking scheme
Posted by "Nicolas Lehuen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/MODPYTHON-8?page=all ]
Nicolas Lehuen reopened MODPYTHON-8:
------------------------------------
This is not really fixed. The publisher's implementation now uses its own system to load the published modules, but apache.import_module has not changed. A great deal of discussion has been done on this issue on the mailing list, but no decision has been made yet.
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: http://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Type: Improvement
> Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assignee: Nicolas Lehuen
> Fix For: 3.2.0
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
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[jira] Updated: (MODPYTHON-8) Improve apache.load_module with a
two-level locking scheme
Posted by "Graham Dumpleton (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/MODPYTHON-8?page=all ]
Graham Dumpleton updated MODPYTHON-8:
-------------------------------------
Assign To: Graham Dumpleton (was: Nicolas Lehuen)
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: http://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Type: Improvement
> Components: importer
> Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assignee: Graham Dumpleton
> Fix For: 3.3
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
--
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[jira] Updated: (MODPYTHON-8) Improve apache.load_module with a two-level locking scheme
Posted by "Nicolas Lehuen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/MODPYTHON-8?page=all ]
Nicolas Lehuen updated MODPYTHON-8:
-----------------------------------
Fix Version: 3.3.0
(was: 3.2.0)
Description:
We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
was:
We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
Environment:
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: http://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Type: Improvement
> Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assignee: Nicolas Lehuen
> Fix For: 3.3.0
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
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[jira] Updated: (MODPYTHON-8) Improve apache.load_module with a two-level locking scheme
Posted by "Nicolas Lehuen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/MODPYTHON-8?page=all ]
Nicolas Lehuen updated MODPYTHON-8:
-----------------------------------
Component: importer
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: http://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Type: Improvement
> Components: importer
> Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assignee: Nicolas Lehuen
> Fix For: 3.3
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
--
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[jira] Resolved: (MODPYTHON-8) Improve apache.load_module with a two-level locking scheme
Posted by "Nicolas Lehuen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/MODPYTHON-8?page=all ]
Nicolas Lehuen resolved MODPYTHON-8:
------------------------------------
Resolution: Fixed
Done, along with a fix for MODPYTHON-9.
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: http://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Type: Improvement
> Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assignee: Nicolas Lehuen
> Fix For: 3.2.0
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
--
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[jira] Work started: (MODPYTHON-8) Improve apache.load_module with
a two-level locking scheme
Posted by "Graham Dumpleton (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/MODPYTHON-8?page=all ]
Work on MODPYTHON-8 started by Graham Dumpleton
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: http://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Type: Improvement
> Components: importer
> Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assignee: Graham Dumpleton
> Fix For: 3.3
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
--
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[jira] Resolved: (MODPYTHON-8) Improve apache.load_module with a
two-level locking scheme
Posted by "Graham Dumpleton (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/MODPYTHON-8?page=all ]
Graham Dumpleton resolved MODPYTHON-8.
--------------------------------------
Resolution: Fixed
Resolved by new module importer for 3.3, but for 3.3 release looks like the new importer will have to be enabled explicitly as will not be the default.
> Improve apache.load_module with a two-level locking scheme
> ----------------------------------------------------------
>
> Key: MODPYTHON-8
> URL: http://issues.apache.org/jira/browse/MODPYTHON-8
> Project: mod_python
> Issue Type: Improvement
> Components: importer
> Affects Versions: 3.1.3
> Reporter: Nicolas Lehuen
> Assigned To: Graham Dumpleton
> Fix For: 3.3
>
>
> We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.
> I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997
> Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?
--
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