[ 
https://issues.apache.org/jira/browse/CASSANDRA-15393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16964228#comment-16964228
 ] 

Benedict Elliott Smith commented on CASSANDRA-15393:
----------------------------------------------------

This shouldn't ever be used for compaction I don't think?

> Add byte array backed cells
> ---------------------------
>
>                 Key: CASSANDRA-15393
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15393
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Local/Compaction
>            Reporter: Blake Eggleston
>            Assignee: Blake Eggleston
>            Priority: Normal
>             Fix For: 4.0
>
>
> We currently materialize all values as on heap byte buffers. Byte buffers 
> have a fairly high overhead given how frequently they’re used, and on the 
> compaction and local read path we don’t do anything that needs them. Use of 
> byte buffer methods only happens on the coordinator. Using cells that are 
> backed by byte arrays instead in these situations reduces compaction and read 
> garbage up to 22% in many cases.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org

Reply via email to