[jira] [Commented] (DISPATCH-1274) Optimize qd_timer_schedule(0)

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DISPATCH-1274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17404708#comment-17404708 ] 

ASF GitHub Bot commented on DISPATCH-1274:
------------------------------------------

kgiusti opened a new pull request #1350:
URL: https://github.com/apache/qpid-dispatch/pull/1350


   Historically the qd_server_t and the timer subsystem have shared a
   single mutex. There is no technical reason for this as each use the
   lock to protect entirely separate critial sections.
   
   Recent analysis of lock usage shows that the timer subsystem makes
   heavy use of the lock.  This patch introduces separate locks as to
   avoid any contention between the qd_server_t and timer operations.


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> Optimize qd_timer_schedule(0) 
> ------------------------------
>
>                 Key: DISPATCH-1274
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-1274
>             Project: Qpid Dispatch
>          Issue Type: Improvement
>          Components: Container
>    Affects Versions: 1.5.0
>            Reporter: Alan Conway
>            Assignee: Ken Giusti
>            Priority: Major
>
> qd_timer_schedule() uses the general timeout mechanisms which includes checking system time (on schedule and on PN_PROACTOR_TIMEOUT wakeup) and adding/removing work items from sorted list. Optimize the schedule(0) case as a simple work_list using pn_proactor_interrupt() for wakeups.



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