DataNucleus JIRA is now in read-only mode. Raise any new issues in GitHub against the plugin that it applies to. DataNucleus JIRA will remain for the foreseeable future but will eventually be discontinued
Issue Details (XML | Word | Printable)

Key: NUCCORE-1210
Type: Improvement Improvement
Status: Closed Closed
Resolution: Fixed
Priority: Trivial Trivial
Assignee: Unassigned
Reporter: Kaarel Kann
Votes: 0
Watchers: 0

If you were logged in you would be able to see more operations.
DataNucleus Core

Configuration.getManagerOverrideableProperties() costs quite a lot of cpu during ExecutionContext creation

Created: 20/May/14 02:20 PM   Updated: 21/May/14 05:09 PM   Resolved: 20/May/14 02:40 PM
Component/s: None
Affects Version/s: 4.0.0.m3
Fix Version/s: 4.0.0.m4

Severity: Development

 Description  « Hide
Configuration.getManagerOverrideableProperties() uses quite a lot of cpu during ExecutionContext creation. Cache the calculation and reset it when underlying structures change.

Sort Order: Ascending order - Click to sort in descending order
Andy Jefferson added a comment - 20/May/14 02:40 PM
This gave the order of 7-8% improvement on the previously mentioned test (i.e where there are a large number of ExecutionContext objects). Would give little to no improvement on simple apps where an ExecutionContext is long-lived.

Kaarel Kann added a comment - 20/May/14 02:57 PM

Tested with property: log4j.logger.DataNucleus = OFF, A1

COMPLETE: Time(ms)=33929

COMPLETE: Time(ms)=24209

Andy Jefferson added a comment - 20/May/14 03:34 PM
Confirmed, without logging also gives 20-35% improvement on "tests" jdo/performance test.