Guillaume Nodet created FELIX-4811:
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Summary: Optimize ConfigurationManager#listConfigurations
Key: FELIX-4811
URL: https://issues.apache.org/jira/browse/FELIX-4811
Project: Felix
Issue Type: Improvement
Components: Configuration Admin
Affects Versions: configadmin-1.8.0
Reporter: Guillaume Nodet
The ConfigurationManager#listConfigurations is far from optimal.
It iterates on all configurations, thereby creating a copy of the properties
for each configuration. Then, for each configuration, filter#match() is
called, which itself create a case insentive copy of the properties for
matching.
If you have quite a lot of configurations and quite a lof of SCR components, it
can be quite time consuming.
Attached is a YourKit profile view which shows that 90% of the time is spent
into copying properties for nothing.
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