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Operating Systems AIX To get only the cpu info from the topas command terminal Post 302887890 by bakunin on Tuesday 11th of February 2014 11:46:05 AM
Old 02-11-2014
Quote:
Originally Posted by rpm120
Can you please help me to match these two outputs?
No problem. Have a look at vmstats "CPU" part:

us=user(%)
sy=system(=kernel)(%)
id=idle(%)
wa=wait(%)

ec=entitled capacity consumed

"us" is what your running programs need
"sy" are system calls and kernel internals needed to keep the system running
"id"/"wa" is what is left over. Together these 4 values add up to 100% (rounding errors notwithstanding).

The difference between "id" and "wa" is: if the processor is idle and there is an I/O operation outstanding it counts towards "wa", otherwise it counts towards "id".

Entitled capacity consumed is: compare the entitled processing power in the LPAR profile against what in reality is allocated right now and express this as a percentage. "50", for instance, means that half of what the LPAR is entitled to use is in fact used right now.

I hope this helps.

bakunin

/ps: i suggest you try the "-w" and the "-t" options of vmstat: one makes for neater columns and the other includes a time stamp for each line which makes it easier to assess.

/pps: another suggestion: vmstat always displays a summary info as the first output line (not counting headers), so disregard this first line if you want to know something about the system right now.

Last edited by bakunin; 02-11-2014 at 12:51 PM..
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CPU(1)							      General Commands Manual							    CPU(1)

NAME
cpu - connection to cpu server SYNOPSIS
cpu [ -h server ] [ -c cmd args ... ] DESCRIPTION
Cpu starts an rc(1) running on the server machine, or the machine named in the $cpu environment variable if there is no -h option. Rc's standard input, output, and error files will be /dev/cons in the name space where the cpu command was invoked. Normally, cpu is run in an 81/2(1) window on a terminal, so rc output goes to that window, and input comes from the keyboard when that window is current. Rc's cur- rent directory is the working directory of the cpu command itself. The name space for the new rc is an analogue of the name space where the cpu command was invoked: it is the same except for architecture- dependent bindings such as /bin and the use of fast paths to file servers, if available. If a -c argument is present, the remainder of the command line is executed by rc on the server, and then cpu exits. The name space is built by running /usr/$user/lib/profile with the root of the invoking name space bound to /mnt/term. The service envi- ronment variable is set to cpu; the cputype and objtype environment variables reflect the server's architecture. FILES
The name space of the terminal side of the cpu command is mounted on the CPU side on directory /mnt/term. SOURCE
/sys/src/cmd/cpu.c SEE ALSO
rc(1), 81/2(1) BUGS
Binds and mounts done after the terminal lib/profile is run are not reflected in the new name space. CPU(1)
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