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  1. Bug #1441908
  2. Comment #10

Comment 10 for bug 1441908

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Valerii Kravchuk (valerii-kravchuk) wrote :

In 5.6.27 I see the following memory usage by performance schema:

| performance_schema | performance_schema.memory | 1794090344 |

This is for:

bin/mysqld_safe --no-defaults --table_definition_cache=50000 &

So, it seems memory pre-allocation is what takes time in 5.6.x and (as 5.7 defers some meory allocation) is a reason why 5.7 is not that much affected.