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stefanlee commented on YARN-4090: --------------------------------- yes ,i see it , it's a valuable optimization, if the *assignmultiple* and *continuous-scheduling* enabled? and what the value of *max.assign* in this test case?[~yufeigu] [~xinxianyin] > Make Collections.sort() more efficient by caching resource usage > ---------------------------------------------------------------- > > Key: YARN-4090 > URL: https://issues.apache.org/jira/browse/YARN-4090 > Project: Hadoop YARN > Issue Type: Sub-task > Components: fairscheduler > Affects Versions: 2.8.1, 3.0.0-alpha3 > Reporter: Xianyin Xin > Assignee: Yufei Gu > Priority: Major > Fix For: 2.9.0, 3.0.0, 3.1.0 > > Attachments: YARN-4090-TestResult.pdf, YARN-4090-preview.patch, > YARN-4090.001.patch, YARN-4090.002.patch, YARN-4090.003.patch, > YARN-4090.004.patch, YARN-4090.005.patch, YARN-4090.006.patch, > YARN-4090.007.patch, YARN-4090.008.patch, YARN-4090.009.patch, sampling1.jpg, > sampling2.jpg > > > Collections.sort() consumes too much time in a scheduling round. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org