[jira] Commented: (CASSANDRA-444) improve throughput for normal inserts on many-core systems

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756223#action_12756223 ] 

Jonathan Ellis commented on CASSANDRA-444:
------------------------------------------

02
    serialize row outside of commitlog executor to improve parallelizability

01
    CASSANDRA-444 move per-key locking inside Memtable and shard it


> improve throughput for normal inserts on many-core systems
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-444
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-444
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>             Fix For: 0.5
>
>         Attachments: 0001-CASSANDRA-444-move-per-key-locking-inside-Memtable-and.txt, 0002-serialize-row-outside-of-commitlog-executor-to-improve.txt
>
>
> move the serialization of commitlog Row to the calling thread, not the CL executor
> shard the memtable lock
> others?

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