Tivoli Monitoring, Version 6.2

Improving tacmd command response time when using VMware

If you experience slow response time when invoking the tacmd command while running on a VMware ESX system, consider disabling virtualization of the Time Stamp Counter (TSC). To make this change, add the following setting in the .vmx configuration file for the virtual machine where the tacmd command is being invoked.

monitor_control.virtual_rdtsc = false

This parameter is described in the “Timekeeping in VMware Virtual Machines" paper on the VMware Web site at http://www.vmware.com/pdf/vmware_timekeeping.pdf. Measurement experience has shown that this setting can significantly improve the tacmd command response time on VMware ESX systems.




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