ASF GitHub Bot commented on ARTEMIS-1977:

Github user franz1981 commented on the issue:

    I think that @clebertsuconic and @michaelandrepearce would be interested in 
this :+1: 
    I would like to be reviewed on this: in particular given that I have target 
x86_64 to define the barriers: AFAIK C11 allow to define them without any 
assembly definition as I have done, but I don't know
    how many architecture we are supporting.

> 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
> 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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