[jbosscache-issues] [JBoss JIRA] Resolved: (JBCACHE-1471) Slow cache.get for fqn with a large number of key/value entries.

Slow cache.get for fqn with a large number of key/value entries. ---------------------------------------------------------------- Key: JBCACHE-1471 URL: https://jira.jboss.org/jira/browse/JBCACHE-1471 Project: JBoss Cache Issue Type: Patch Security Level: Public(Everyone can see) Affects Versions: 3.0.2.GA Environment: Encountered when using a TcpDelegatingCacheLoader Reporter: Alex Kluge Assignee: Manik Surtani Priority: Minor Fix For: 3.1.0.GA Attachments: containsKeyDirect.patch Stress tests of JBoss Cache with a far cache, and a large number (10K+) of key/value pairs in a node did not perform as well as I would expect. On a read of the cache, cache.get(fqn, key), a large amount of time was spent determining whether the data needed to be loaded from the far cache. The big time sink is the n. getKeysDirect() call in org.jboss.cache.interceptors.CacheLoaderInterceptor, which copies the keyset. As expected, introducing a containsKeyDirect(K key) method to NodeSPI, and implementation classes where needed, allowed for a significant speedup when the new method is used in place of n.getKeysDirect().contains(key). If this is a reasonable path, I have attached the patch file to this issue.