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https://issues.apache.org/jira/browse/MAPREDUCE-6931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16148121#comment-16148121
]
Hudson commented on MAPREDUCE-6931:
-----------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #12278 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/12278/])
MAPREDUCE-6931. Remove TestDFSIO "Total Throughput" calculation. (shv: rev
3e0e2033cc28d48a7909822416478aff7487bfe6)
* (edit)
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/fs/TestDFSIO.java
> Remove TestDFSIO "Total Throughput" calculation
> -----------------------------------------------
>
> Key: MAPREDUCE-6931
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6931
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: benchmarks, test
> Affects Versions: 2.8.0
> Reporter: Dennis Huo
> Priority: Trivial
> Attachments: MAPREDUCE-6931-001.patch
>
>
> The new "Total Throughput" line added in
> https://issues.apache.org/jira/browse/HDFS-9153 is currently calculated as
> {{toMB(size) / ((float)execTime)}} and claims to be in units of "MB/s", but
> {{execTime}} is in milliseconds; thus, the reported number is 1/1000x the
> actual value:
> {code:java}
> String resultLines[] = {
> "----- TestDFSIO ----- : " + testType,
> " Date & time: " + new Date(System.currentTimeMillis()),
> " Number of files: " + tasks,
> " Total MBytes processed: " + df.format(toMB(size)),
> " Throughput mb/sec: " + df.format(size * 1000.0 / (time *
> MEGA)),
> "Total Throughput mb/sec: " + df.format(toMB(size) /
> ((float)execTime)),
> " Average IO rate mb/sec: " + df.format(med),
> " IO rate std deviation: " + df.format(stdDev),
> " Test exec time sec: " + df.format((float)execTime / 1000),
> "" };
> {code}
> The different calculated fields can also use toMB and a shared
> milliseconds-to-seconds conversion to make it easier to keep units consistent.
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