以下是我受影响的生产实例之一的passenger-status输出：
Version : 4.0.53
Date : 2015-01-07 00:59:55 +0000
Instance: 6919
----------- General information -----------
Max pool size : 8
Processes : 8
Requests in top-level queue : 0
----------- Application groups -----------
/home/app/web#default:
App root: /home/app/web
Requests in queue: 0
* PID: 7009 Sessions: 1 Processed: 1607 Uptime: 53m 19s
CPU: 7% Memory : 217M Last used: 2m 51s ago
* PID: 7021 Sessions: 1 Processed: 1823 Uptime: 53m 19s
CPU: 6% Memory : 217M Last used: 2s ago
* PID: 7032 Sessions: 0 Processed: 2241 Uptime: 53m 19s
CPU: 7% Memory : 218M Last used: 2s ago
* PID: 7044 Sessions: 1 Processed: 1539 Uptime: 53m 19s
CPU: 15% Memory : 209M Last used: 14m 27s ago
* PID: 7057 Sessions: 0 Processed: 1549 Uptime: 53m 19s
CPU: 5% Memory : 217M Last used: 1s ago
* PID: 7074 Sessions: 1 Processed: 554 Uptime: 53m 18s
CPU: 41% Memory : 220M Last used: 41m 37s ago
* PID: 7085 Sessions: 1 Processed: 1564 Uptime: 53m 18s
CPU: 10% Memory : 219M Last used: 7m 5s ago
* PID: 7106 Sessions: 1 Processed: 14 Uptime: 53m 17s
CPU: 56% Memory : 174M Last used: 52m 30s ago
正如您所看到的，8个实例中有两个未在> 40分钟内使用，但它们正在咀嚼我机器的大部分CPU。关于如何进行调试的任何提示？