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https://issues.apache.org/jira/browse/ARTEMIS-1977?focusedWorklogId=190189&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-190189
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ASF GitHub Bot logged work on ARTEMIS-1977:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 25/Jan/19 21:09
Start Date: 25/Jan/19 21:09
Worklog Time Spent: 10m
Work Description: franz1981 commented on issue #2523: ARTEMIS-1977
ASYNCIO can reduce sys-calls to retrieve I/O events
URL: https://github.com/apache/activemq-artemis/pull/2523#issuecomment-457728883
@clebertsuconic About the memory barriers? Are the standard implementation
used on the c++11 memory model and I have asked a colleague of mine that work
on the Linux kernel, specifically on libAIO ie Paolo Bonzini on
https://github.com/redhat-cip/fio/blob/master/engines/libaio.c
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Issue Time Tracking
-------------------
Worklog Id: (was: 190189)
Time Spent: 1h 50m (was: 1h 40m)
> ASYNCIO can reduce sys-calls to retrieve I/O events
> ---------------------------------------------------
>
> Key: ARTEMIS-1977
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1977
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 2.6.2
> Reporter: Francesco Nigro
> Assignee: Francesco Nigro
> Priority: Minor
> Fix For: 2.7.0
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> On LibAIO is possible to retrieve the I/O completion events without
> using io_getevents sys-calls by reading the user-space ring buffer used by the
> kernel to store them.
> This is already beneficial for very fast disks and necessary for further
> improvements
> of ASYNCIO Journal to leverage (very) fast low-latency disks by going
> completly
> lock-free.
>
>
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