Benedict created CASSANDRA-7045: ----------------------------------- Summary: Investigate changes to threading model for network consumers to improve performance for small messages Key: CASSANDRA-7045 URL: https://issues.apache.org/jira/browse/CASSANDRA-7045 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Benedict Assignee: Benedict
See CASSANDRA-7029 for original discussion. We can (maybe) optimise the threading model for network consumers: since we generally process very small messages (200 bytes not at all implausible), the thread signalling costs on the processing thread can actually dramatically impede throughput. In general it costs ~10micros to signal (and passing the message to another thread for processing in the current model requires signalling). For 200-byte messages this caps our throughput at 20MB/s. -- This message was sent by Atlassian JIRA (v6.2#6252)