[ https://issues.apache.org/jira/browse/SYSTEMML-2526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
bd2019us updated SYSTEMML-2526: ------------------------------- Attachment: 1.patch > Date.getTime() can be changed to System.currentTimeMillis() > ----------------------------------------------------------- > > Key: SYSTEMML-2526 > URL: https://issues.apache.org/jira/browse/SYSTEMML-2526 > Project: SystemML > Issue Type: Bug > Reporter: bd2019us > Priority: Major > Attachments: 1.patch > > > src/main/java/org/apache/sysml/api/mlcontext/MLContext.java 337 > src/main/java/org/apache/sysml/api/mlcontext/MLContextUtil.java 1258 > I found that System.currentTimeMillis() can be used here instead of new > Date.getTime(). > Since new Date() is a thin wrapper of light method > System.currentTimeMillis(). The performance will be greatly damaged if it is > invoked too much times. > According to my local testing at the same environment, > System.currentTimeMillis() can achieve a speedup to 5 times (435 ms vs 2073 > ms), when these two methods are invoked 5,000,000 times. -- This message was sent by Atlassian JIRA (v7.6.3#76005)