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Posted to dev@qpid.apache.org by "Robbie Gemmell (Jira)" <ji...@apache.org> on 2020/11/17 12:21:00 UTC
[jira] [Commented] (PROTON-1496) epoll proactor - improved timers
implementation with single timerfd kernel resource
[ https://issues.apache.org/jira/browse/PROTON-1496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17233547#comment-17233547 ]
Robbie Gemmell commented on PROTON-1496:
----------------------------------------
Further fixup made via PROTON-2304 was included in 0.33.0 RC3.
> epoll proactor - improved timers implementation with single timerfd kernel resource
> -----------------------------------------------------------------------------------
>
> Key: PROTON-1496
> URL: https://issues.apache.org/jira/browse/PROTON-1496
> Project: Qpid Proton
> Issue Type: Improvement
> Components: proton-c
> Affects Versions: proton-c-0.18.0, proton-c-0.32.0
> Environment: Linux environments with epoll support
> Reporter: Clifford Jansen
> Assignee: Clifford Jansen
> Priority: Major
> Fix For: proton-c-0.33.0
>
>
> The epoll proactor allocates a timerfd per connection. This is a convenience for the initial implementation and may surprise some applications running into system limits on file descriptors twice as fast as expected.
> The timer is used for heartbeats. It should be possible to write a per-proactor heartbeat timer that is shared among the connections
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