为什么parallelStream().forEachOrdered慢,forEach之后就变快了^_^

list.forEach(i->System.out.println(i));
list.parallelStream().forEachOrdered(i->System.out.println(i));

单独执行.forEachOrdered()会很慢,.forEach()遍历一次再.forEachOrdered()就快了。。。。。

forEachOrdered()是单线程处理的
forEach()才是多线程,实测

https://blog.csdn.net/qq_31840023/article/details/100579117