[ https://issues.apache.org/jira/browse/HDFS-13701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brahma Reddy Battula updated HDFS-13701: ---------------------------------------- Target Version/s: 3.4.0 (was: 3.3.0) Bulk update: moved all 3.3.0 non-blocker issues, please move back if it is a blocker. > Removal of logging guards regressed performance > ----------------------------------------------- > > Key: HDFS-13701 > URL: https://issues.apache.org/jira/browse/HDFS-13701 > Project: Hadoop HDFS > Issue Type: Bug > Components: performance > Affects Versions: 3.0.0 > Reporter: Todd Lipcon > Priority: Major > > HDFS-8971 removed various logging guards from hot methods in the DFS client. > In theory using a format string with {} placeholders is equivalent, but in > fact it's not equivalent when one or more of the variable arguments are > primitives. To be passed as part of the varargs array, the primitives need to > be boxed. I am seeing Integer.valueOf() inside BlockReaderLocal.read taking > ~3% of CPU. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org