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https://issues.apache.org/jira/browse/CASSANDRA-5422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-5422:
--------------------------------------
Attachment: 5422-test.txt
Patch to disable MS.execute (and batch_mutate) attached.
To run the binary protocol stress test,
{{mvn install -Dmaven.test.skip=true}} from java-driver root
(https://github.com/datastax/java-driver)
then {{mvn assembly:single from driver-example/stress}}
finally, {{java -jar
target/cassandra-driver-examples-stress-1.0.0-beta2-APSHOT-jar-with-dependencies.jar
insert_prepared --value-size 4}}
> Binary protocol sanity check
> ----------------------------
>
> Key: CASSANDRA-5422
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5422
> Project: Cassandra
> Issue Type: Bug
> Components: API
> Reporter: Jonathan Ellis
> Assignee: Marcus Eriksson
> Attachments: 5422-test.txt
>
>
> With MutationStatement.execute turned into a no-op, I only get about 33k
> insert_prepared ops/s on my laptop. That is: this is an upper bound for our
> performance if Cassandra were infinitely fast, limited by netty handling the
> protocol + connections.
> This is up from about 13k/s with MS.execute running normally.
> ~40% overhead from netty seems awfully high to me, especially for
> insert_prepared where the return value is tiny. (I also used 4-byte column
> values to minimize that part as well.)
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