dashboard
=========
> This is the real time statistics dashboard for the current system, press `Ctrl+C` to exit.
When running in Apache Tomcat Alibaba edition, the dashboard will also present the real time statistics of the tomcat, including [QPS](https://en.wikipedia.org/wiki/Queries_per_second), RT, error counts, and thread pool, etc.
### Usage
```
$ dashboard
ID NAME GROUP PRIORITY STATE %CPU TIME INTERRUPTED DAEMON
889 RMI TCP Connection(15)-30.10.166. RMI Runtime 9 RUNNABLE 48 0:5 false true
1077 Timer-for-arthas-dashboard-0 system 9 RUNNABLE 24 0:0 false true
1074 as-selector-daemon system 9 RUNNABLE 12 0:0 false true
284 JMX server connection timeout 284 RMI Runtime 9 TIMED_WAITI 8 0:3 false true
16 Timer-1 main 5 TIMED_WAITI 5 0:9 false true
47 Pandora pandora-qos-reporter Pool main 5 TIMED_WAITI 0 0:0 false true
48 JmonitorClient-CheckThread Pool [ main 5 TIMED_WAITI 0 0:0 false true
49 JmonitorClient-HeartBeat Pool [Th main 5 TIMED_WAITI 0 0:0 false true
50 JmonitorClient-ReaderThread Pool main 5 TIMED_WAITI 0 0:0 false true
957 RMI TCP Connection(16)-30.10.166. RMI Runtime 9 RUNNABLE 0 0:2 false true
51 JmonitorClient-WriterThread Pool main 5 TIMED_WAITI 0 0:0 false true
52 ContainerBackgroundProcessor[Stan main 5 TIMED_WAITI 0 0:0 false true
53 http-bio-8080-Acceptor-0 main 5 RUNNABLE 0 0:2 false true
54 http-bio-8080-AsyncTimeout main 5 TIMED_WAITI 0 0:0 false true
11 GC Daemon system 2 TIMED_WAITI 0 0:0 false true
Memory used total max usage GC
heap 59M 223M 1820M 3.26% gc.ps_scavenge.count 118
ps_eden_space 14M 114M 668M 2.11% gc.ps_scavenge.time(ms) 1890
ps_survivor_space 6M 6M 6M 96.08% gc.ps_marksweep.count 5
ps_old_gen 39M 103M 1365M 2.86% gc.ps_marksweep.time(ms) 1140
nonheap 234M 240M 0M 97.46%
code_cache 46M 47M 240M 19.49%
metaspace 167M 172M 0M 97.36%
Runtime Tomcat
os.name Mac OS X connector http-bio-8080
os.version 10.10.5 QPS 0.00
java.version 1.8.0_60 RT(ms) 1.13
java.home error/s 0.00
received/s 0B
systemload.average 3.44 sent/s 0B
processors 4 threadpool http-bio-8080
uptime 16020s busy 0
```
### Notes on column headers
* ID: JVM thread ID, pls. note this ID is different from the nativeID in jstack
* NAME: thread name
* GROUP: thread group name
* PRIORITY: thread priority, ranged from 1 to 10. The greater number, the higher priority
* STATE: thread state
* CPU%: the ratio of CPU usage for the thread, sampled every 100ms
* TIME: total running time in `minute:second` format
* INTERRUPTED: the thread interruption state
* DAEMON: daemon thread or not
### Screenshot
