If you are only interested in capturing a general arithmetic error 如果只对捕获一般的算法错误感兴趣，将引发一个
2.
The codetest performance tool also counts call - pairs - - determining the frequency with which each function calls other functions in order to pinpoint algorithmic errors such as thrashing 性能工具还可以为呼叫对计数-确定每个函数呼叫其他函数的频率，以便查明像系统失效这样的算法错误。
