elek opened a new pull request #1311: URL: https://github.com/apache/hadoop-ozone/pull/1311
## What changes were proposed in this pull request Teragen with Ozone is reported to be slower with Ozone than Hdfs with some specific configuration. To make it easier to compare different file system, we need an easy measurement on the same point (`FSDataOutputStream`.write) to compare the time spent in that method with Hdfs/Ozone/other file systems. It can be done with a byteman instrumentation rule ## What is the link to the Apache JIRA https://issues.apache.org/jira/browse/HDDS-4095 ## How was this patch tested? https://elek.github.io/ozone-notes/performance/20_teragen/ https://elek.github.io/ozone-notes/performance/19_hcfs/ Both tests used this btm file. FS usage was reported on the stdout: For example: ``` Closing file system instance: 1398604678 write.call: 30000 write.allTime: 692 hsync.call: 0 hsync.allTime: 0 hflush.call: 0 hflush.allTime: 0 close.call: 10000 close.allTime: 411171 ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: ozone-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: ozone-issues-h...@hadoop.apache.org
