快速排序的平均时间复杂度VS插入排序 [英] Average time complexity of quicksort vs insertion sort

问题描述

我是领导认为，快速排序应该比插入排序快一个中等大小的unorderd int数组上。我实现了这两种算法在Java中，我注意到快速排序是显著慢然后插入sorrt。

I'm lead to believe that quick sort should be faster than insertion sort on a medium size unorderd int array. I've implemented both algorithms in java and I notice quicksort is significantly slower then insertion sorrt.

我有一个理论：quiksort正在慢，因为它是递归调用它使以它自己的方法签名是这就是为什么我的定时器是给高得多的读数比我预想的JVM比较慢，而插不递归和所有thwe工作是一种​​方法，使他们JVM是没有做任何多余的琐碎的工作中做了什么？ amirite？

I have a theory: quiksort is being slower because it's recursive and the call it's making to it's own method signature is quite slow in the JVM which is why my timer is giving much higher readings than I expected, whereas insertion isn't recursive and all thwe work is done within one method so they JVM isn't having to do any extra grunt work? amirite?

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