Monitoring and Troubleshooting Cisco Unified Communications Manager 6.0 High CPU, using Real Time Monitoring Tool (RTMT)

Publisher

Cisco Systems (TAC)

URL

https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/97086-ccm6-cpu.html

Published

2009-01-30

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco copyrighted documentation; no-redistribution; short excerpts and locators only

Source notes citing this source

• Cisco's 6.0 guidance says CodeYellow can occur at only about 25-35 percent total CPU on a 4-virtual-processor server because call processing relies on one processor. in context
• In Unified CM 6.0, CodeYellow is raised when the AverageExpectedDelay counter exceeds the Code Yellow Entry Latency service parameter. in context
• In Cisco's 6.0 high-CPU note, if IOWait is high or the node is in CodeYellow while CallManager tracing is Detailed, lower the trace level to Error. in context

Cite this source record

APA

WarmTransfer. (2009, January 30). Monitoring and Troubleshooting Cisco Unified Communications Manager 6.0 High CPU, using Real Time Monitoring Tool (RTMT). WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-technote-97086-ccm6-high-cpu

BibTeX

@misc{warmtransfer-cisco-technote-97086-ccm6-high-cpu,
  title  = {Monitoring and Troubleshooting Cisco Unified Communications Manager 6.0 High CPU, using Real Time Monitoring Tool (RTMT)},
  author = {{WarmTransfer}},
  year   = {2009},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-technote-97086-ccm6-high-cpu},
  note   = {Cisco Systems (TAC), accessed 2026-09-25}
}