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https://issues.apache.org/jira/browse/CASSANDRA-5515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13712992#comment-13712992
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Tyler Hobbs commented on CASSANDRA-5515:
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At first I was not planning to include range slice queries in the count, but on 
second thought, those may still be useful.  What do you think?
                
> Track sstable coldness
> ----------------------
>
>                 Key: CASSANDRA-5515
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5515
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Tyler Hobbs
>             Fix For: 2.0.1
>
>
> Keeping a count of reads per-sstable would allow STCS to automatically ignore 
> cold data rather than recompacting it constantly with hot data, dramatically 
> reducing compaction load for typical time series applications and others with 
> time-correlated access patterns.  We would not need a separate age-tiered 
> compaction strategy.
> (This will really be useful in conjunction with CASSANDRA-5514.)

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