tune
[from automotive or musical usage] vt. To optimize a program
or system for a particular environment, esp. by adjusting numerical
parameters designed as hooks 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
bum, hot spot, hand-hacking.