You are viewing a plain text version of this content. The canonical link for it is here.
Posted to hdfs-dev@hadoop.apache.org by "Dennis Huo (JIRA)" <ji...@apache.org> on 2017/08/03 00:30:00 UTC
[jira] [Created] (HDFS-12253) CLONE - Pretty-format the output for
DFSIO
Dennis Huo created HDFS-12253:
---------------------------------
Summary: CLONE - Pretty-format the output for DFSIO
Key: HDFS-12253
URL: https://issues.apache.org/jira/browse/HDFS-12253
Project: Hadoop HDFS
Issue Type: Test
Reporter: Dennis Huo
Assignee: Kai Zheng
Fix For: 2.8.0, 3.0.0-alpha1
Ref. the following DFSIO output, I was surprised the test throughput was only {{17}} MB/s, which doesn't make sense for a real cluster. Maybe it's used for other purpose? For users, it may make more sense to give the throughput 1610 MB/s (1228800/763), calculated by *Total MBytes processed / Test exec time*.
{noformat}
15/09/28 11:42:23 INFO fs.TestDFSIO: ----- TestDFSIO ----- : write
15/09/28 11:42:23 INFO fs.TestDFSIO: Date & time: Mon Sep 28 11:42:23 CST 2015
15/09/28 11:42:23 INFO fs.TestDFSIO: Number of files: 100
15/09/28 11:42:23 INFO fs.TestDFSIO: Total MBytes processed: 1228800.0
15/09/28 11:42:23 INFO fs.TestDFSIO: Throughput mb/sec: 17.457387239456878
15/09/28 11:42:23 INFO fs.TestDFSIO: Average IO rate mb/sec: 17.57563018798828
15/09/28 11:42:23 INFO fs.TestDFSIO: IO rate std deviation: 1.7076328985378455
15/09/28 11:42:23 INFO fs.TestDFSIO: Test exec time sec: 762.697
15/09/28 11:42:23 INFO fs.TestDFSIO:
{noformat}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org