Speed_vs_space

(Project Properties window)

*.prj\COMPILE\Optimization\
Speed_vs_space

default
speed
space

Set to space if you want the compiler to optimize to reduce image size at the expense of a possible increase in execution time. This is the default.

Set to speed if you want the compiler to optimize to reduce execution time at the possible expense of a larger image. Use this option if execution time is more critical than code size.

For more information, see –Ospace, -Otime in the documentation for your toolchain.