You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@harmony.apache.org by "George Harley (JIRA)" <ji...@apache.org> on 2006/06/28 12:57:30 UTC
[jira] Resolved: (HARMONY-684) performance improvement for TreeMap
and TreeSet classes
[ http://issues.apache.org/jira/browse/HARMONY-684?page=all ]
George Harley resolved HARMONY-684:
-----------------------------------
Resolution: Fixed
Hi Vladimir,
Patch committed in revision 417719. Please could you verify that it has been applied as expected.
Thanks very much for this enhancement.
Best regards,
George
> performance improvement for TreeMap and TreeSet classes
> -------------------------------------------------------
>
> Key: HARMONY-684
> URL: http://issues.apache.org/jira/browse/HARMONY-684
> Project: Harmony
> Type: Improvement
> Components: Classlib
> Reporter: Vladimir Strigun
> Assignee: George Harley
> Priority: Minor
> Attachments: Harmony-684.patch
>
> I'd like to suggest performance improvement for TreeMap and TreeSet classes. With the patch I have ~2.8% boost on SPECjbb2005.
> Description of the patch:
> Instead of one common TreeMap iterator for all cases, 9 new iterators are used. The main effect is that for generic iterator yet another object was created (type getter). And when the iterator was created - two objects were allocated: iterator & getter. This is not effective. Creation several specialized iterator classes allows to reduce amount of allocated objects.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
http://www.atlassian.com/software/jira