Proportion of MySQL variables I made some research on MySQL performance.
After doing some tests and verifyed the improvement, (thank you guys)
I end up asking myself: 
"Is there any formula or metric between groups of variables?"

I mean, given a server with X GB of RAM and X2 processor 

innodb_additional_mem_pool_size + innodb_buffer_pool_size &lt;= Y% of X

innodb_log_file_size + innodb_log_buffer_size &lt;=  Z% of X

and so on...

Is there any specific proportion between this group of variables?
There is one serious effort to do this - it can be found here. Check out the warning though 


  WARNING
  
  It is extremely important for you to fully understand each change you
  make to a MySQL database server.... &amp;c...


It is virtually impossible to factor in all variables - at the end of the day, it comes down to MySQL expertise. The author (Major Hayden) is a principal architect with RackSpace, so one can assume that he has some expertise.