[jboss-jira] [JBoss JIRA] (WFCORE-1000) Take into account cpuset masks on Linux when using cpu count for sizing pools

[Jason Greene (JIRA)]

     [ https://issues.jboss.org/browse/WFCORE-1000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Greene updated WFCORE-1000:
---------------------------------
    Description: On Linux, Runtime.getRuntime().availableProcessors() always returns the host CPU count regardless of the process' cpuset affinity. This effectively means usage of cgroups (e.g. using docker) and numactl will lead to oversized thread pools. While this issue should be fixed in the JVM, we should workaround the problem by reading /proc. 


> Take into account cpuset masks on Linux when using cpu count for sizing pools
> -----------------------------------------------------------------------------
>
>                 Key: WFCORE-1000
>                 URL: https://issues.jboss.org/browse/WFCORE-1000
>             Project: WildFly Core
>          Issue Type: Feature Request
>          Components: Server
>            Reporter: Jason Greene
>            Assignee: Jason Greene
>             Fix For: 2.0.0.CR4
>
>
> On Linux, Runtime.getRuntime().availableProcessors() always returns the host CPU count regardless of the process' cpuset affinity. This effectively means usage of cgroups (e.g. using docker) and numactl will lead to oversized thread pools. While this issue should be fixed in the JVM, we should workaround the problem by reading /proc. 



--
This message was sent by Atlassian JIRA
(v6.4.11#64026)