Updated on 2025-05-22 GMT+08:00

PERF05-02 Optimizing General Algorithms

  • Risk level

    Medium

  • Key strategies

    You can improve the design and implementation of algorithms to improve program performance. The following are some best practices:

    • Use the correct data structure: Selecting a proper data structure can greatly improve the algorithm efficiency. For example, you can use a hash table to quickly search for elements and use an array to quickly access elements.
    • Reduce memory allocation: Memory allocation is a time-consuming operation. You can pre-allocate memory or reuse allocated memory.
    • Reduce the number of loops: Loops are a common algorithm structure. However, too many loops will deteriorate program performance. You can use more efficient algorithms.
    • Use parallel computing: For some compute-intensive algorithms, use parallel computing to improve program performance. You can use multi-thread or distributed computing.