[jira] [Assigned] (PROTON-584) Proton-c transport reserves large buffers for brief use

2019-03-05 Thread Alan Conway (JIRA)


 [ 
https://issues.apache.org/jira/browse/PROTON-584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Alan Conway reassigned PROTON-584:
--

Assignee: Andrew Stitcher  (was: Alan Conway)

> Proton-c transport reserves large buffers for brief use
> ---
>
> Key: PROTON-584
> URL: https://issues.apache.org/jira/browse/PROTON-584
> Project: Qpid Proton
>  Issue Type: Improvement
>  Components: proton-c
>Affects Versions: proton-0.8
>Reporter: Cliff Jansen
>Assignee: Andrew Stitcher
>Priority: Major
>  Labels: perf
> Fix For: proton-c-future
>
>
> When processing transfer frames for incoming messages, Proton requires a 
> temporary buffer holding the whole transfer frame briefly in contiguous space 
> in the transport before moving it to the engine proper which holds the 
> content in a separate memory area.
> pn_transport_capacity grows the buffer in the non-ssl case 
> (transport->input_buf), and openssl.c largely duplicates the code (including 
> the comment about "no limit") for ssl->inbuf for ssl connections.
> Either way, a large message will trigger reserving a similarly large buffer 
> for the rest of the life of the connection.
> Is it necessary for the transport to buffer the whole message body and hang 
> on to that memory?



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[jira] [Assigned] (PROTON-584) Proton-c transport reserves large buffers for brief use

2017-07-19 Thread Justin Ross (JIRA)

 [ 
https://issues.apache.org/jira/browse/PROTON-584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Justin Ross reassigned PROTON-584:
--

Assignee: Alan Conway

> Proton-c transport reserves large buffers for brief use
> ---
>
> Key: PROTON-584
> URL: https://issues.apache.org/jira/browse/PROTON-584
> Project: Qpid Proton
>  Issue Type: Improvement
>  Components: proton-c
>Affects Versions: 0.8
>Reporter: Cliff Jansen
>Assignee: Alan Conway
>  Labels: perf
> Fix For: 0.18.0
>
>
> When processing transfer frames for incoming messages, Proton requires a 
> temporary buffer holding the whole transfer frame briefly in contiguous space 
> in the transport before moving it to the engine proper which holds the 
> content in a separate memory area.
> pn_transport_capacity grows the buffer in the non-ssl case 
> (transport->input_buf), and openssl.c largely duplicates the code (including 
> the comment about "no limit") for ssl->inbuf for ssl connections.
> Either way, a large message will trigger reserving a similarly large buffer 
> for the rest of the life of the connection.
> Is it necessary for the transport to buffer the whole message body and hang 
> on to that memory?



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