V5框式设备cpu高

单板CPU高达100%

最高进程为T_DM

Chassis 1 Slot 1 CPU usage: LSU1TGS48SF0  

     100% in last 5 seconds

      76% in last 1 minute

      95% in last 5 minutes

Chassis 2 Slot 1 CPU usage: LSU1TGS48SF0

     100% in last 5 seconds

      57% in last 1 minute

      84% in last 5 minutes

T_DM            60%               0/27ac94e3

1、首先收集诊断信息

2、多收集几次下面的信息，

_dis task-track T_DM slot 1

Display cpu_usage task slot 1

_display task-info slot 1

_display task-track <taskname> slot 1

反复查看bcm 1 0 mutex看哪个任务一直有，一直有的话就收集一下_dis task-track +具体的任务

通过如上信息收集，发现设备tc一直在增加。现场排查完tc后cpu下降