[
https://issues.apache.org/jira/browse/PROTON-585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14006093#comment-14006093
]
ASF subversion and git services commented on PROTON-585:
--------------------------------------------------------
Commit 1596912 from [~astitcher] in branch 'proton/trunk'
[ https://svn.apache.org/r1596912 ]
PROTON-585: Rearrange structures (where possible) to remove padding holes
> Can improve memory use by rearranging structs to eliminate padding
> ------------------------------------------------------------------
>
> Key: PROTON-585
> URL: https://issues.apache.org/jira/browse/PROTON-585
> Project: Qpid Proton
> Issue Type: Improvement
> Components: proton-c
> Affects Versions: 0.6, 0.7
> Reporter: Andrew Stitcher
> Assignee: Andrew Stitcher
> Priority: Minor
>
> The C/C++ language rules allow compilers to add extra padding in the middle
> of structs .Generally this is done to maintain the correct ABI alignment for
> the members.
> This means that by paying attention to the sizes of the members you can
> eliminate the padding simply by putting the largest members (with the biggest
> alignment constraint) first then the next then the next down to bitfields (if
> you are using them).
> Removing the padding can reduce the space used by structs and this can be
> significant if enough of them are allocated.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
