db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3092) Use java.util.concurrent in TransactionTable and XactFactory to improve scalability
Date Fri, 28 Sep 2007 15:58:50 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12531063
] 

Bryan Pendleton commented on DERBY-3092:
----------------------------------------

Could you describe the test you are running a little bit? Does "TPS" mean
Transactions Per Second? Are you really seeing 37 thousand transactions per second?

> Use java.util.concurrent in TransactionTable and XactFactory to improve scalability
> -----------------------------------------------------------------------------------
>
>                 Key: DERBY-3092
>                 URL: https://issues.apache.org/jira/browse/DERBY-3092
>             Project: Derby
>          Issue Type: Improvement
>          Components: Performance, Store
>    Affects Versions: 10.3.1.4
>            Reporter: Dyre Tjeldvoll
>         Attachments: xact-concept.diff
>
>
> Running scalability tests with the client and buffer manager from DERBY-2911 shows that
access to the TransactionTable.trans (a Hashtable) and XactFactory.tranId (a shared long)
are the next major sources of contention. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message