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https://issues.apache.org/jira/browse/CASSANDRA-611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stu Hood resolved CASSANDRA-611.
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Resolution: Duplicate
This is the third copy of the issue, but #773 looks like the best effort yet.
> Fix Findbugs: Replace keySet w entrySet
> ---------------------------------------
>
> Key: CASSANDRA-611
> URL: https://issues.apache.org/jira/browse/CASSANDRA-611
> Project: Cassandra
> Issue Type: Bug
> Reporter: Stu Hood
> Assignee: Chris Goffinet
> Attachments: 0001-Replace-keySet-with-entrySet.patch,
> findbugs-keyset-w-entryset.txt
>
>
> A lot of places in the codebase, we iterate over the keySet() of a Map, and
> call get() for each key. For a HashMap, this is still O(N), but when you are
> dealing with a SortedMap, this is O(NlogN). The list of occurences are
> attached.
> Fixing this issue should give us a general (minor?) performance boost.
> In order to find unused method parameters for CASSANDRA-608, I ran FindBugs
> against Cassandra, and found a few interesting issues we ought to explore
> (but not the unused method params, oi.)
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