ITEM: BD9852L

3dmon cpu0 statistics not displayed for AIX 3.2 system

Desc:

RISC/6000 @ AIX 3.2.5.1 has PTX v1.2 installed(both the agent and manager)
'3dmon -c cpu' has missing data.

Action:

Determined that 3dmon is working as designed. On an AIX 3.2 system, the
only CPU/cpu statistics that can be monitored are as follows:

user
kern
wait
idle
uticks
kticks
wticks
iticks

of which only user, kern, and wait come up with '3dmon -c cpu'.

On an AIX v4 system, PTX provides the following /CPU/cpu/ statistics:

user
kern
wait
idle
uticks
kticks
wticks
iticks
pswitch
syscall
read
write
fork
exec
readch
writech
iget
namei
dirblk

Compared to a AIX v4 system, a v3 system is missing:

pswitch
syscall
read
write
fork
exec
readch
writech
iget
namei
dirblk

from the /CPU/cpu/ statistics. However, the above statistics are
available under different headings on a v3 system.

AIX v4                  --->    AIX v3
-----------------               --------------
/CPU/cpu/pswitch                /Proc/pswitch
/CPU/cpu/syscall                /Syscall/total
/CPU/cpu/read                   /Syscall/read
/CPU/cpu/write                  /Syscall/write
/CPU/cpu/fork                   /Syscall/fork
/CPU/cpu/exec                   /Syscall/exec
/CPU/cpu/readch                 /SysIO/readch
/CPU/cpu/writech                /SysIO/writech
/CPU/cpu/iget                   /FS/iget
/CPU/cpu/namei                  /FS/namei
/CPU/cpu/dirblk                 /FS/dirblk

* Note: The same statistic headings listed above under AIX v3 are also
        duplicated under AIX v4 under the same exact headings as well as
        under the /CPU/cpu/ heading.

It is possible to edit a copy of the 3dmon.cf file in /usr/lpp/perfmgr on
a v3 system so that the same information is displayed for a remote v3 or
v4 system when running '3dmon -c cpu' and placing it in /etc/perf.

For example:

"3dmon.cf file"

.
.wildcard:   cpu   hosts \# processors on remote hosts
CPU/*/user
CPU/*/kern
CPU/*/wait
Proc/pswitch
Syscall/total
Syscall/read
Syscall/write
Syscall/fork
Syscall/exec
SysIO/readch
SysIO/writech
FS/iget
FS/namei
FS/dirblk

~




Support Line: 3dmon cpu0 statistics not displayed for AIX 3.2 system ITEM: BD9852L

Dated: May 1996 Category: N/A

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