156,157c156,157
<         if (/^BusyServers:\s+([0-9.]+)\s+/) { $busy = $1; next; }
<         if (/^IdleServers:\s+([0-9.]+)\s+/) { $idle = $1; next; }
---
>         if (/^BusyWorkers:\s+([0-9.]+)\s+/) { $busy = $1; next; }
>         if (/^IdleWorkers:\s+([0-9.]+)\s+/) { $idle = $1; next; }
219c219
<      if($average>0) {
---
>      if($average>=0) {