[jboss-jira] [JBoss JIRA] (JGRP-2124) ByteArrayDataOutputStream: expand more conservatively

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-2124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13317448#comment-13317448 ] 

Bela Ban commented on JGRP-2124:
--------------------------------

Also made all classes which implement SizeStreamable create ByteArrayDataOutputStream() instances of the correct size

> ByteArrayDataOutputStream: expand more conservatively
> -----------------------------------------------------
>
>                 Key: JGRP-2124
>                 URL: https://issues.jboss.org/browse/JGRP-2124
>             Project: JGroups
>          Issue Type: Enhancement
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>            Priority: Minor
>             Fix For: 4.0
>
>
> Currently, unless exponential growth is enabled, BADOSs expand as follows:
> {{new_length = remaining_length + new bytes required + 32}}
> If we have a 1024 buffer with pos=4 and want to add 1024 bytes, then we expand the buffer to 1020 + 1024 + 32 = 2076 bytes which is wasted space.
> I'm changing this to 
> {{new_length = pos + new bytes required + 32}}. In the above example, we'd expand the buffer to 1060 bytes.
> If we really wanted bigger expansion, exponential growth should be enabled.



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