steveloughran commented on pull request #2553:
URL: https://github.com/apache/hadoop/pull/2553#issuecomment-746781643
Latest PR fixes test failures, does more
* delete duration now tracked
* and split into single/bulk delete calls
* delete/rename cost tests updated to match
* ...and to work correctly if bulk deletes are disabled.
* +moved most of the Statistic names into the hadoop-common constant files,
for reuse.
* New method IOStatisticsLogging.ioStatisticsToSortedString(); sorts the
metrics before printing. Adds cost of creation of and insertion into
treemaps, so should be used with care. Used for test reporting.
For an example of the sorted statistics log, see
https://gist.github.com/steveloughran/50ad1cf3d22d6683d4f2f038453be803
That's across all the tests in ITestS3AOperationCost, remote access to S3
london from bristol; There's a 3 millis RTT of pinging my own base station from
the laptop so subtract that from all the timings.
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