False Calculation of Total RAM Usage

[dcz010]

Hi,

I found an error in the RAM calculation of the tuner script.
In the calculation of the memory per thread the "tmp_table_size" is missing so the calc is incorrect.
I'm using the MariaDB defaults and only changed the tmp_table_size from 16M to 32M.
So the bolt marked can not be correct because im sometime always producing OOM with mariadbd.

-------- Performance Metrics -----------------------------------------------------------------------
ℹ Up for: 5d 3h 18m 18s (168M q [378.922 qps], 15M conn, TX: 208G, RX: 29G)
ℹ Reads / Writes: 82% / 18%
ℹ Binary logging is disabled
ℹ Physical Memory : 72.0G
ℹ Max MySQL memory : 59.2G
ℹ Other process memory: 0B
ℹ Total buffers: 55.0G global + 2.9M per thread (1250 max threads)
ℹ Performance_schema Max memory usage: 631M
ℹ Galera GCache Max memory usage: 3G
✔ Maximum reached memory usage: 56.4G (78.29% of installed RAM)
✔ Maximum possible memory usage: 59.2G (82.28% of installed RAM)
✔ Overall possible memory usage with other process is compatible with memory available

Regards
dcz010