tune

   [from  automotive  or  musical usage] To optimize a program or system
   for  a particular environment, esp. by adjusting numerical parameters
   designed as {hook}s for tuning, e.g., by changing #define lines in C.
   One  may  tune  for  time  (fastest execution), tune for space (least
   memory  use),  or  tune  for  configuration  (most  efficient  use of
   hardware). See {hot spot}, {hand-hacking}.

[glossary]
[Reference(s) to this entry by made by: {bit twiddling}{hand-hacking}{hot spot}{profile}{tweak}]