[ 
https://issues.apache.org/jira/browse/CASSANDRA-5422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13687093#comment-13687093
 ] 

Jonathan Ellis commented on CASSANDRA-5422:
-------------------------------------------

/throws up the [~slebresne] signal
                
> Native 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: Daniel Norberg
>         Attachments: 5422-test.txt, ExecuteMessage Profiling - Call Tree.png, 
> ExecuteMessage Profiling - Hot Spots.png
>
>
> 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.)

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Reply via email to