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Carsten Ziegeler commented on FELIX-4692: ----------------------------------------- [~rickhall] Do you think we should apply this patch anyway? It looks at least like a good first step. > Improve Service access time > --------------------------- > > Key: FELIX-4692 > URL: https://issues.apache.org/jira/browse/FELIX-4692 > Project: Felix > Issue Type: Improvement > Components: Framework > Affects Versions: framework-4.4.1 > Reporter: Felix Meschberger > Assignee: Felix Meschberger > Fix For: framework-4.6.0 > > Attachments: FELIX-4692.diff > > > Currently the ServiceRegistry takes roughly 1ms to access a single service. > In a reasonably large system, this may over time consume considerable time. > For example in our inhouse system sporting roughly 5000 services with 15'000 > service accesses during startup, these accesses acount for almost 15 seconds > or roughly 25-30% of the total startup time. > Internally all accesses to services are handled with a Filter even if the > service is simply retrieved with the service name without a filter. This > causes a considerable overhead. > A simple improvement is to keep services not only in a global Capabitliy Set > accessible through generic filters but also keep such a set for each > registered service name. > The measured improvement of this change is substantial: accessing these > 15'000 services now only takes roughly 3 seconds or 0.2 ms per service or 5 > times faster. -- This message was sent by Atlassian JIRA (v6.3.4#6332)