您没有说Windows / Linux操作系统是32位还是64位。

You don't say whether the windows/linux operating systems are 32 or 64 bit.

在64位linux机器上，如果将size_t更改为int，您会发现linux的执行时间下降到与您拥有的执行时间相似的值

On a 64-bit linux machine, if you change the size_t to an int you'll find that execution times drop on linux to a similar value to those that you have for windows.

size_t在win32上是int32，在win64上是int64。

size_t is an int32 on win32, an int64 on win64.

编辑：刚刚看到了Windows反汇编。

just seen your windows disassembly.

您的Windows操作系统是32位版本（或者至少您已编译为32位）。

Your windows OS is the 32-bit variety (or at least you've compiled for 32-bit).