command is used to get the usage of each CPU

[guest1]

Machine using dual-core processor. I need to find out the load on each CPU core

I have tried using "top" command. But, top command is showing the overall usage of cpu.

What is command is used to get the usage of each CPU?

-Thanks

[artov]

I am not sure about command line utility, but Activity Monitor shows CPU usage per core.

[Giaguara]

cpuwalk.d - Measure which CPUs a process runs on. Uses DTrace
dispqlen.d - dispatcher queue length by CPU. Uses DTrace
runocc.d - run queue occupancy by CPU. Uses DTrace
sampleproc - sample processes on the CPUs. Uses DTrace

cpuwalk.d is probably what you want. Run it with sudo.

NAME
cpuwalk.d - Measure which CPUs a process runs on. Uses DTrace.

SYNOPSIS
cpuwalk.d [duration]

DESCRIPTION
This program is for multi-CPU servers, and can help identify if a
process is running on multiple CPUs concurrently or not.

A duration may be specified in seconds.

Since this uses DTrace, only the root user or users with the
dtrace_kernel privilege can run this command.

EXAMPLES
this runs until Ctrl-C is hit,
# cpuwalk.d

run for 5 seconds,
# cpuwalk.d 5

FIELDS
PID process ID

CMD process name

value CPU id

count number of samples (sample at 100 hz)

DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs direc-
tory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.

EXIT
cpuwalk.d will run until Ctrl-C is hit, or the duration specified is
reached.

SEE ALSO
threaded.d(1M), dtrace(1M)