CPU Resources

Sun Management Center agents add a minimal computational load on the host system. The computational load is caused by normal management operations, including periodic data acquisition, alarm rule processing, alarm annunciation, alarm action execution, and the processing of client requests.

The amount of load introduced is proportional to the rate at which data is gathered, the amount of data gathered, the number of alarms detected, and the number of user requests. The percentage of CPU resources consumed therefore depends on the number and type of modules loaded on the system, the configuration of these modules, and the computational capacity of the host system.

Even on low-end machines with a comprehensive suite of modules loaded and high management activity, the agent should never consume more than a fraction of the CPU resources.

The following table gives estimates of the agent CPU and RAM usage by system type and includes information for the x86 agent.

Table C–1 Agent CPU and RAM Use Estimates by System Type

		CPU Usage	RAM Usage
Server Type	Heavy or Light Configuration	Maximum	Minimum	Average	Average Size	Average Resident Size
Sun Blade 100	Light	0.10%	0.00%	0.21%	8.77 Mbytes	7.02 Mbytes
Sun Fire 280R	Light	0.10%	0.00%	0.10%	10.47 Mbytes	8.49 Mbytes
Sun Blade 2000	Light	0.20%	0.00%	0.05%	8.89 Mbytes	7.06 Mbytes
Sun Fire 880	Light	0.00%	0.00%	0.00%	8.97 Mbytes	7.31 Mbytes
Sun Blade 100	Heavy	1.20%	0.50%	0.79%	14.83 Mbytes	12.99 Mbytes
Sun Fire 280R	Heavy	2.60%	0.10%	0.81%	16.22 Mbytes	13.92 Mbytes
Sun Blade 2000	Heavy	0.30%	0.20%	0.20%	14.45 Mbytes	12.76 Mbytes
Sun Fire 880	Heavy	4.40%	0.10%	0.88%	16.15 Mbytes	14.41 Mbytes

Light configurations are based on an agent with the following modules loaded:

• Kernel-Reader Simple

• Agent Statistics

• MIB-II Simple

The heavy configuration is based on an agent with the following modules loaded:

Config Reader Health Monitor Full Kernel Reader MIB-II Instrumentation Directory Size Monitoring File Scanning

Hardware Diagnostics Suite Script Launcher HP JetDirect Agent Statistics MIB-II Proxy Monitoring Various other modules, including custom modules

The heavy configuration is likely to be greater than needed. Larger machines typically have larger hardware configurations with more processors and disks. These configurations result in greater memory consumption by agents running on larger machines.