@tsteur opened this Pull Request on March 18th 2015 Owner

The method ArchiveProcessor::aggregateDataTableRecords counts by default the number of rows recursive. I noticed this takes a lot of time especially on large dataTables: https://github.com/piwik/piwik/blob/2.12.0-b7/core/ArchiveProcessor.php#L220

We're calling this method 17 times but it is only actually used once. Therefore I added a parameter to disable it (not enabled by default to stay BC. I failed to find a better solution. Only solution I could think of alternatively would be to add another method that does not count recursive.

In the following example run you can see that it takes 13.5 seconds (with xhprof and only no_builtins flag) which is 15% of the total time to get the rows count recursive. And this is only for 5 records. Those 17 calls easily make 30 records. Meaning we will save a lot of time when generating week, month, year and range archives.


@mattab commented on March 18th 2015 Owner

:+1: refs #4768

This Pull Request was closed on March 18th 2015
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