"Let your software fly"

1. The efficiency of the compiler to process a one-dimensional array is higher than that of a two-dimensional array;

2. Use integer operations instead of floating-point operations;

3. Use a mobile operation instead of a division operation;

4. Use the lookup table operation instead of the operation that requires repeated calculation. (change the space for Time)

5. Loop expansion. Generally, loop expansion and parallel accumulation are among multiple values, which is a reliable method to improve program performance;

6. The efficiency of the compiler to process int type and unsigned short type is different.

7. Declare the function as inline, which can eliminate unnecessary process calls and reduce the overhead of CPU subfunction calls;

8. frequently called functions are written in assembly languages;

9. consider adjusting Cache Optimization;