Todd Lipcon created HDFS-13702: ---------------------------------- Summary: HTrace hooks taking 10-15% CPU in DFS client when disabled Key: HDFS-13702 URL: https://issues.apache.org/jira/browse/HDFS-13702 Project: Hadoop HDFS Issue Type: Bug Components: performance Affects Versions: 3.0.0 Reporter: Todd Lipcon
I am seeing DFSClient.newReaderTraceScope take ~15% CPU in a teravalidate workload even when HTrace is disabled. This is because it stringifies several integers. We should avoid all allocation and stringification when htrace is disabled. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org