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https://issues.apache.org/activemq/browse/AMQCPP-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_39446
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Gerald Kaas edited comment on AMQCPP-93 at 6/18/07 2:54 PM:
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I also have been doing some profiling of the activemq-cpp-2.0.1 tag and I am
finding that the DataInputStream class is fairly inefficient and can be greatly
improved upon. Most of the inefficiencies are in the readString and readFully
methods. readString appends to the string object one character at a time, which
is very inefficient. Also, most methods are calling readFully for one byte. It
would be better to create a different method to read one byte which would then
call the read method the returns the unsigned char.
I can probably work on a patch but I have never work with an open source
project before. How do I proceed?
was:
I also have been doing some profiling of the activemq-cpp-2.0.1 tag and I am
finding that the DataInputStream class is fairly inefficient and can be greatly
improved upon. Most of the inefficiencies are in the readString and readFully
methods. readString appends to the string object one character at a time, which
is very inefficient. Also, most methods are calling readFully for one byte. It
would be better to create a different method to read one byte which would then
call the read method the returns the unsigned char.
I can probably work on a patch but I have never work with an open source
project before. How do I proceed?
Also, attached are my profile output.
> Performance analysis
> --------------------
>
> Key: AMQCPP-93
> URL: https://issues.apache.org/activemq/browse/AMQCPP-93
> Project: ActiveMQ C++ Client
> Issue Type: Task
> Affects Versions: 2.0
> Reporter: Nathan Mittler
> Assignee: Nathan Mittler
> Fix For: 2.2
>
> Attachments: amqcpp-perf1.patch, amqcpp-perf1v2.patch, bench1.cpp
>
>
> Do a performance analysis on openwire vs stomp.
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