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https://issues.apache.org/jira/browse/CASSANDRA-8362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Yeschenko updated CASSANDRA-8362:
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Issue Type: Improvement (was: Bug)
> Reduce memory usage of RefCountedMemory
> ---------------------------------------
>
> Key: CASSANDRA-8362
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8362
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Vijay
> Assignee: Vijay
> Priority: Minor
>
> We can store the references as the first 4 bytes of the Unsafe memory and use
> case CAS[1] for reference counting of the memory.
> This change will reduce the object over head + additional 4 bytes from java
> heap. Calling methods can reference as long's.
> [1]
> http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/util/concurrent/atomic/AtomicInteger.java#AtomicInteger.incrementAndGet%28%29
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