Understanding resource utilization and spare capacity is becoming more important than ever. Processors, Memory are one of the most significant resources among all the available resources in a system, making processor/ memory utilization a critical metric for measuring the performance of a system running a workload.

As AIX Admin In your day-to-day admin job we frequently asked to get CPU and memory values. They will play key roles in administration jobs.

To list presently staged/installed CPU, memory, and hard-disk capacity in the server, use below simple commands on the AIX server.

Show CPU

# prtconf -s
# pmcycles -m
# lsdev -Cc processor
# bindprocessor -q

You can get the CPU utilization of the system with below command:

Show RAM/Capacity

# prtconf -m
# bootinfo -r
# lsattr -El sys0 -a realmem
# lsattr -El mem0

Below two commands, shows what is available for processing. Means if the rmss is in place. They will report the simulated memory only.

# vmstat
# getconf REAL_MEMORY

Show Hard disks/Capacity

# lsdev -Cc disk
# lspv
# bootinfo -s hdisk0

Show IP Addresses

# ifconfig -a | grep inet
# lsattr -El en0 -a netaddr

Determining microprocessor speed

This section describes a process for determining microprocessor speed. When using AIX and subsequent releases, the following code returns the processor speed in hertz (Hz):

# lsattr -E -l proc0 | grep "Processor Speed"

When using earlier releases than AIX 5.1, use the uname command. Running the uname -m command produces output of the following form:

xx – 00 (always starts with 00 digits)
yyyyyy – Unique CPU ID
mm – Model ID (the numbers to use to determine microprocessor speed)
ss – 00 (Submodel)

Example of “uname -m” command is as shown below: