Anomie added a comment.

For eowiki, with the default batch size (500):

  • Each transaction took around 1-2 seconds during the initial run.
  • The initial run took 13855 seconds to insert 6306218 (there was a bug that made it skip the first row, BTW).
  • The second run (after fixing the bug) took 47 seconds to process 2 rows.
  • The third run, with --reuse-content, took 326 seconds to load the existing rows then 48 seconds to run through and find nothing to do. Maximum resident set size reported by /usr/bin/time -v was 777008 K.
  • The fourth run, without --reuse-content, took 45 seconds and reported MRSS of 109048 K.
  • Sanity checks passed.

The next test will be to truncate the tables and re-run eowiki with a different batch size to see what difference that makes to the run time.


TASK DETAIL
https://phabricator.wikimedia.org/T196172

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To: Anomie
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