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https://issues.apache.org/jira/browse/CASSANDRA-7045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13971423#comment-13971423
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Jason Brown commented on CASSANDRA-7045:
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I started an investigation into something like the quasar project
(http://docs.paralleluniverse.co/quasar/), where you are doing something like
like golang's goroutines / erlang's process. Basically, lightweight event
processing not occupying a full thread. While I thought bringing in the whole
quasar project was more than what we would want, I thought the basic ideas
(scheduler + lightweight routines) would be a great thing to look at.
> 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
> Labels: performance
>
> 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.
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