Re: Deleted Records and Optimize
Posted by:
Rick James
Date: August 22, 2015 11:13AM
I suggest that no action is needed.
Yes, you have only a few rows in 2MB of Data + Index. The 4MB "free" always exists for larger tables; it is not hurting anything.
I suggest that OPTIMIZE TABLE will not speed up anything since your 2MB is probably always in cache (the buffer_pool).
I assume you have set innodb_buffer_pool_size to about 70% of _available_ RAM.
If you were processing rows faster, I would point you to
http://mysql.rjweb.org/doc.php/staging_table
which discusses what to do if you have a lot more than 40/sec. (It would probably work for your case. It would eliminate the need for OPTIMIZE since does DROP+CREATE.
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