推出了占用CPU

大约三个月前，我的MacBook Pro retina 2014的风扇开始不断旋转，因为launchd正在占用CPU高达70％。当我检查system.log时，它反复显示此代码：

Jun 18 21:59:54 MacBook-Pro-2 com.apple.xpc.launchd[1] (/var/root/Library/alumni/alumni[41060]): Could not find and/or execute program specified by service: 13: Permission denied: /var/root/Library/alumni/alumni
Jun 18 21:59:54 MacBook-Pro-2 com.apple.xpc.launchd[1] (/var/root/Library/alumni/alumni[41060]): Service setup event to handle failure and will not launch until it fires.
Jun 18 21:59:54 MacBook-Pro-2 com.apple.xpc.launchd[1] (/var/root/Library/alumni/alumni[41061]): Could not find and/or execute program specified by service: 13: Permission denied: /var/root/Library/alumni/alumni
Jun 18 21:59:54 MacBook-Pro-2 com.apple.xpc.launchd[1] (/var/root/Library/alumni/alumni[41061]): Service setup event to handle failure and will not launch until it fires.
Jun 18 21:59:54 MacBook-Pro-2 com.apple.xpc.launchd[1] (/var/root/Library/alumni/alumni[41062]): Could not find and/or execute program specified by service: 13: Permission denied: /var/root/Library/alumni/alumni
Jun 18 21:59:54 MacBook-Pro-2 com.apple.xpc.launchd[1] (/var/root/Library/alumni/alumni[41062]): Service setup event to handle failure and will not launch until it fires.

谁知道如何解决这个问题？我已经尝试将OS X升级到Sierra（之前我还在Yosemite），但它根本没有解决问题。我也无法访问/ var / root / Library / alumni。

我首先检查文件夹/Library/LaunchAgents和/Library/LaunchDaemons。在这些文件夹中，您将找到一堆“plist”脚本，告诉系统如何以及何时启动某些软件。

我想你会在那里找到一个告诉系统推出这个“校友”软件。鉴于日志中的错误报告您的系统上似乎不存在该软件，您可以安全地删除相关的plist文件。然后重新启动以使更改生效。

除非您确定它们是什么，否则请注意不要删除任何其他plist文件。