TeslaCN opened a new issue #15858: URL: https://github.com/apache/shardingsphere/issues/15858
## Performance The overhead of `org.apache.shardingsphere.spi.ordered.OrderedSPIRegistry` is a little heavy. <img width="1663" alt="image" src="https://user-images.githubusercontent.com/20503072/157048884-072ff83f-0c62-4c83-89d7-5b9f5fb5c80d.png";> I try replacing Guava cache with ConcurrentHashMap in `org.apache.shardingsphere.spi.ordered.cache.OrderedServicesCache` and found the overhead is reduced. ```java private static final Map<Key, Map<?, ?>> CACHED_SERVICES = new ConcurrentHashMap<>(); ``` But the ConcurrentHashMap is strong reference, we may need a higher-performance cache implementation. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
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