navstar heavy cpu usage on agents

Description

NavStar's beam.smp has been constantly and frequently peaked at 100% CPU about 10s duration for roughly every minute. from the top below its cpu time is 25x of mesos-agent.

```
top - 20:36:47 up 98 days, 2:43, 1 user, load average: 2.23, 1.85, 1.66
Tasks: 180 total, 3 running, 177 sleeping, 0 stopped, 0 zombie
%Cpu(s): 34.4 us, 44.2 sy, 5.3 ni, 11.7 id, 0.0 wa, 1.4 hi, 2.9 si, 0.0 st
KiB Mem: 15404012 total, 6387308 used, 9016704 free, 339952 buffers
KiB Swap: 0 total, 0 used, 0 free. 3113908 cached Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2082 root 20 0 3670976 258244 6720 S 97.7 1.7 32887:01 beam.smp
22756 root 39 19 3548 2888 844 R 83.7 0.0 0:15.22 du
22723 root 39 19 6084 5192 768 R 82.4 0.0 0:29.77 du
1839 root 20 0 4044888 337876 6636 S 35.2 2.2 9193:49 beam.smp
24712 root 20 0 747224 65440 15164 S 22.3 0.4 2623:47 cadvisor
22450 root 20 0 47564 15300 5324 S 8.0 0.1 0:04.00 haproxy
2201 root 20 0 1069124 50128 33040 S 2.0 0.3 1278:42 mesos-agent
```
$ ps 2082
PID TTY STAT TIME COMMAND
2082 ? Sl 32887:34 /opt/mesosphere/packages/navstar--a8b11d176a5985f9c448b2077e16465d93c427fb/navstar/erts-8.0/bin/beam.smp -Bd -K true -A 64 -P 256000 -C multi_time
```

Assignee

Albert Strasheim

Components

Configure