System counters: WAS v5.1

System counters

Data counters for this category contain information for a machine (node).

Name Key Description Granularity Type Level
CPU utilization systemModule.cpuUtilization The average system CPU utilization taken over the time interval since the last reading. Because the first call is required to perform initialization, a value such as 0, which is not valid, will be returned. All subsequent calls return the expected value. On SMP machines, the value returned is the utilization averaged over all CPUs. Per node CountStatistic Low
Free memory systemModule.freeMemory The amount of real free memory available on the system. Real memory that is not allocated is only a lower bound on available real memory, since many operating systems take some of the otherwise unallocated memory and use it for additional I/O buffering. The exact amount of buffer memory which can be freed up is dependent on both the platform and the application(s) running on it. Per node CountStatistic Low
Average CPU utilization systemModule.avgCpuUtilization The average percent CPU Usage that is busy after the server is started Per node TimeStatistic Medium

See Also
Performance data organization

Name	Key	Description	Granularity	Type	Level
CPU utilization	systemModule.cpuUtilization	The average system CPU utilization taken over the time interval since the last reading. Because the first call is required to perform initialization, a value such as 0, which is not valid, will be returned. All subsequent calls return the expected value. On SMP machines, the value returned is the utilization averaged over all CPUs.	Per node	CountStatistic	Low
Free memory	systemModule.freeMemory	The amount of real free memory available on the system. Real memory that is not allocated is only a lower bound on available real memory, since many operating systems take some of the otherwise unallocated memory and use it for additional I/O buffering. The exact amount of buffer memory which can be freed up is dependent on both the platform and the application(s) running on it.	Per node	CountStatistic	Low
Average CPU utilization	systemModule.avgCpuUtilization	The average percent CPU Usage that is busy after the server is started	Per node	TimeStatistic	Medium