[infinispan-issues] [JBoss JIRA] (ISPN-4678) Trim down ExpandableMarshalledValueByteStream to the actual data length before storing in cache

[Dan Berindei (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-4678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12997731#comment-12997731 ] 

Dan Berindei commented on ISPN-4678:
------------------------------------

I meant it for [~mgencur], of course :)

> Trim down ExpandableMarshalledValueByteStream to the actual data length before storing in cache
> -----------------------------------------------------------------------------------------------
>
>                 Key: ISPN-4678
>                 URL: https://issues.jboss.org/browse/ISPN-4678
>             Project: Infinispan
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>          Components: Core
>    Affects Versions: 7.0.0.Beta1
>            Reporter: Martin Gencur
>            Assignee: Martin Gencur
>
> When storeAsBinary configuration flag is used, the ExpandableMarshalledValueByteStream is used to serialize objects to byte arrays. 
> However, for value size up to 4kB, almost half of the space for each cache entry can be wasted because the ByteStream is stored as is - with the additional space for future expansion.
> For value size greater than 4kB, only additional 25% of actual value size can be wasted. But as these values can be quite large, the wasted space gets bigger too.
> It is not necessary to store ExpandableMarshalledValueByteStream as is and can be shrinked to actual data size before storing in cache.



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