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https://issues.apache.org/jira/browse/CASSANDRA-5515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13710040#comment-13710040
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Tyler Hobbs commented on CASSANDRA-5515:
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Should this ticket include the STCS work, or just tracking read counts?  If so, 
I think there's a lot of room for discussion about how STCS should utilize that 
data.
                
> 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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