[ https://issues.apache.org/jira/browse/SYSTEMML-1791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias Boehm resolved SYSTEMML-1791. -------------------------------------- Resolution: Done Assignee: Matthias Boehm Fix Version/s: SystemML 1.0 > Performance features frame blocks > --------------------------------- > > Key: SYSTEMML-1791 > URL: https://issues.apache.org/jira/browse/SYSTEMML-1791 > Project: SystemML > Issue Type: Task > Reporter: Matthias Boehm > Assignee: Matthias Boehm > Fix For: SystemML 1.0 > > > Recent experiments have shown that there are unnecessary overheads in various > frame block operations. This task is an umbrella for all related performance > improvements. In detail, this includes: > * Shallow copy for column indexing > * Bidirectional reuse of recode maps in meta data frames > * Avoid unnecessary long-string-double parsing on transformapply -- This message was sent by Atlassian JIRA (v6.4.14#64029)