编译 C++项目问题，用 E5-2697V4*2 速度跟 13 代 i5 差不多，一个 32 一个 8+2 - V2EX
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xvast

编译 C++项目问题，用 E5-2697V4*2 速度跟 13 代 i5 差不多，一个 32 一个 8+2

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  •   xvast Dec 5, 2024 1759 views
    This topic created in 525 days ago, the information mentioned may be changed or developed.
    核心数量越多速度应该更快，难道编译链接涉及到还有其他的吗，例如 cpu 和 memory 的频率？
    有懂硬件的老哥吗
  • 编译
  • 速度
  • 核心
    3 replies    2024-12-05 16:36:42 +08:00
    passive
        1
    passive  
       Dec 5, 2024 via Android   1
    1. E5 单核本来就不快。
    2. 文件以来复杂，并行不够
    3. 单文件的编译和链接没法并行
    luny
        2
    luny  
       Dec 5, 2024
    C++消耗的单核性能更多一些，E5 优势在多核，大型工程，会好一些
    xvast
        3
    xvast  
    OP
       Dec 5, 2024
    @passive 是单核频率不够，很多核心都没有跑满。一开始我以为是 io 不够
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