测速失败达到一定次数的节点，筛选出来删除 / Count the failure times of [Ctrl+R]

[narulmcto]

做一个统计Ctrl+R测速失败次数的功能，按失败次数排列，从而让我们选择次数多的进行删除。
Do a function to count the number of failed Ctrl+R speed measurement, sorted by the number of failures, so that we can select the most frequent items to delete.