cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4865) Off-heap bloom filters
Date Fri, 26 Oct 2012 08:09:12 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13484775#comment-13484775
] 

Jonathan Ellis commented on CASSANDRA-4865:
-------------------------------------------

Vijay, could you take a stab at this?  The bit arithmetic made my head hurt.  (may want to
add a getInt method to Memory to avoid signed/unsigned messes...  then again maybe getByte
is faster from native, no idea really.)
                
> Off-heap bloom filters
> ----------------------
>
>                 Key: CASSANDRA-4865
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4865
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Vijay
>             Fix For: 1.2.1
>
>
> Bloom filters are the major user of heap as dataset grows.  It's probably worth it to
move these off heap.  No extra refcounting needs to be done since we already refcount SSTableReader.

--
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

Mime
View raw message