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Re: MyTOP - Key Efficiency 50.0% - How to improve it?
Posted by: Peter Brawley
Date: January 21, 2018 10:07PM

AFAIK one MySQL connection uses one CPU core, best config is innodb_thread_concurrency=0, which means no limit, then grow innodb_read_io_threads and innodb_write_io_threads to 64.

3P solution? https://www.percona.com/blog/2014/05/01/parallel-query-mysql-shard-query/ .

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