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Posted to commits@tapestry.apache.org by "Andy Blower (JIRA)" <ji...@apache.org> on 2011/06/27 18:38:47 UTC
[jira] [Updated] (TAP5-1563) ParallelExecutor service appears to be
bound to the number of executor threads specified by THREAD_POOL_CORE_SIZE
[ https://issues.apache.org/jira/browse/TAP5-1563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Blower updated TAP5-1563:
------------------------------
Description:
ParallelExecutor service is bound to the number of executor threads specified by THREAD_POOL_CORE_SIZE rather than THREAD_POOL_MAX_SIZE, which means by default only three parallel tasks are executed at once rather than the maximum of 20. This is unexpected behaviour for someone not familiar with the ThreadPoolExecutor design, which is not intuitive. The documentation of ParallelExecutor is very misleading and should be expanded to explain this correctly.
This blog post I found explains it clearly:
http://www.bigsoft.co.uk/blog/index.php/2009/11/27/rules-of-a-threadpoolexecutor-pool-size
was:
ParallelExecutor service appears to be bound to the number of executor threads specified by THREAD_POOL_CORE_SIZE rather than THREAD_POOL_MAX_SIZE, which means by default only three parallel tasks are executed at once rather than the maximum of 20. This is unexpected behaviour to someone not familiar with the ThreadPoolExecutor design, which is not intuitive. The documentation should be expanded to explain this correctly.
This blog post I found explains it clearly
http://www.bigsoft.co.uk/blog/index.php/2009/11/27/rules-of-a-threadpoolexecutor-pool-size
> ParallelExecutor service appears to be bound to the number of executor threads specified by THREAD_POOL_CORE_SIZE
> ------------------------------------------------------------------------------------------------------------------
>
> Key: TAP5-1563
> URL: https://issues.apache.org/jira/browse/TAP5-1563
> Project: Tapestry 5
> Issue Type: Improvement
> Components: documentation, tapestry-ioc
> Reporter: Andy Blower
> Priority: Minor
>
> ParallelExecutor service is bound to the number of executor threads specified by THREAD_POOL_CORE_SIZE rather than THREAD_POOL_MAX_SIZE, which means by default only three parallel tasks are executed at once rather than the maximum of 20. This is unexpected behaviour for someone not familiar with the ThreadPoolExecutor design, which is not intuitive. The documentation of ParallelExecutor is very misleading and should be expanded to explain this correctly.
> This blog post I found explains it clearly:
> http://www.bigsoft.co.uk/blog/index.php/2009/11/27/rules-of-a-threadpoolexecutor-pool-size
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