Comment 3 for bug 1441908

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Valerii Kravchuk (valerii-kravchuk) wrote :

I wonder how much RAM did you have on the system where this test was performed? Check https://bugs.mysql.com/bug.php?id=69391 - table_definition_cache is one of the variables that defines the amount of memory allocated for the performance_schema, and maybe it was just swapping with high value?

Also, is it really important to have 700K tables to reproduce the notable difference in startup time with P_S set to ON vs OFF with table_definition_cache=1000 (it seems so from perf output, but just to double check)?