Memory

• alignment

  • efficient memory load

• locality

  • time
  • space
  • data dependency
    • vectorize

• cache line

  • 多线程共享数据，避免cache line 重叠, false sharing

• stack prefaulting

• jemalloc

Branch

• [[likely]]
• constexpr if
• compile time polymorphism
  • visit variant

Concurrency

• wait free
• lock free
• memory model
  • store buffer
  • load buffer
• context switch
  • thread
  • fiber
  • coroutine

CPU instruction

• floating point denormals

标签：load,buffer,cache,free,memory,Performance,line
来源： https://www.cnblogs.com/Searchor/p/16169306.html