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Vladimir Ozerov updated IGNITE-7866: ------------------------------------ Priority: Blocker (was: Major) > TcpCommunicationSpi metrics causes cache operations slowdown > ------------------------------------------------------------ > > Key: IGNITE-7866 > URL: https://issues.apache.org/jira/browse/IGNITE-7866 > Project: Ignite > Issue Type: Task > Components: general > Affects Versions: 2.4 > Reporter: Vladimir Ozerov > Assignee: Vladimir Ozerov > Priority: Blocker > Fix For: 2.4 > > > Extended TCP metrics were added as a part of IGNITE-6868 ticket. > Unfortunately, they causes ~5-10% performance drop for cache operations when > working in in-memory mode. Causes: > 1) Contention on shared data structures (LongAdder, CMH) > 2) A lot of string comparisons because we use class names to track particulat > message types > Suggested fix: > 1) Move all processing to NIO threads > 2) Introcduce thread-local state and update it from NIO threads > 3) Metrics readers should merge state from all NIO threads > 4) User {{Message}} type ID instead of class names > 5) When returning final result we should use {{Class.getName()}} instead of > {{Class.getSimpleName()}} -- This message was sent by Atlassian JIRA (v7.6.3#76005)