Files
node-problem-detector/pkg/util/metrics
Karan Goel 71098097c0 add metrics for process stats
Tested on a COS VM:

```
$ curl -s localhost:20257/metrics | grep "^system_"
system_interrupts_total{kernel_version="5.4.49+",os_version="cos 85-13310.1041.24"} 8.759236e+07
system_processes_total{kernel_version="5.4.49+",os_version="cos 85-13310.1041.24"} 692506
system_procs_blocked{kernel_version="5.4.49+",os_version="cos 85-13310.1041.24"} 0
system_procs_running{kernel_version="5.4.49+",os_version="cos 85-13310.1041.24"} 2
```
2021-01-13 09:14:08 -08:00
..
2019-08-16 01:33:29 -07:00
2019-08-16 01:33:29 -07:00
2019-08-16 01:33:29 -07:00
2021-01-13 09:14:08 -08:00