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How to access process and cpu info on AIX?

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Operating Systems AIX How to access process and cpu info on AIX?
# 1  
Old 05-31-2009
How to access process and cpu info on AIX?
Hi,

may be this is an AIX noob question:
my current C++ application runs on Linux and is quite memory consuming. Therefore, the application writes a logfile after it has finished containing memory information, CPU information, information on the running other processes besides my application etc.
On Linux I use the /proc/ pseudo-filesystem to access this information.
How can I do this for AIX? Is there any "standard" way how to do this?

Thank you very much for your help!!
# 2  
Old 05-31-2009
The "time" command (time a process) sounds like what you want.

Also relevant for viewing system usage are "topas" and "nmon". (Nmon is particularly nice as a system-wide real-time information viewer.)
# 3  
Old 06-01-2009
Thank you for your quick answer!
Where does "nmon" get its information from? E.g. number of cpus or cpu type? I'd like to access this information directly instead of calling a "tool" like nmon.
# 4  
Old 06-01-2009
I tried running nmon, then doing "truss" on the process and pressing "r" to show resources. The system calls it does might allow you to track down this information. The following was on an 8 CPU machine:

Code:
ptx_get_cpuinfo(0xFFFFFFFF, 0x00000000, 0x00000008, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x30106AC8) = 0x00000008
ptx_get_wparsysinfo(0x00000000, 0x2FF215D0, 0x00000000, 0x00000004, 0x2FF21570, 0xF053CC78, 0xD01357E0, 0x00000000) = 0x00000000
ptx_get_wparsysstats(0x00000000, 0x2FF21748, 0x301322F8, 0x0000D032, 0x00000000, 0x000003D0, 0x00000000, 0x00000000) = 0x00000000
ptx_get_syswait(0x2FF21580, 0x00000000, 0x301322F8, 0x0000D032, 0x00000000, 0x000003D0, 0x00000000, 0x00000000) = 0x00000000
ptx_get_sysstats(0x2FF21790, 0x00000008, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x30106E18) = 0x00000000
lpar_get_info(0x00000001, 0x2FF21488, 0x00000178, 0x7DD53DC5, 0x25F14E58, 0x00000001, 0x00000000, 0x00000000) = 0x00000000
lpar_get_info(0x00000002, 0x2FF213C0, 0x000000C8, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
vmgetinfo(0x00000000, 102, 0)                   = 4
vmgetinfo(0x3061F588, 102, 4)                   = 4
vmgetinfo(0x2FF21600, 103, 400)                 = 0
ptx_get_cpuinfo(0xFFFFFFFF, 0x00000000, 0x00000008, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x30106AC8) = 0x00000008
ptx_get_wparsysinfo(0x00000000, 0x2FF215D0, 0x00000000, 0x00000004, 0x2FF21570, 0xF053CC78, 0xD01357E0, 0x00000000) = 0x00000000
ptx_get_wparsysstats(0x00000000, 0x2FF21748, 0x301322F8, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
ptx_get_syswait(0x2FF21580, 0x00000000, 0x301322F8, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
lpar_get_info(0x00000001, 0x30111C18, 0x00000178, 0x00000000, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
lpar_get_info(0x00000002, 0x30111D90, 0x000000C8, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
ptx_get_cpuinfo(0xFFFFFFFF, 0x2FF21618, 0x304B09E8, 0x00000210, 0x00000008, 0x43300000, 0x00000000, 0x00000000) = 0x00000008
ptx_get_cpuinfo(0x00000000, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000000, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
wpar_vmgetinfo(0, 0x30683EF8, 13, 0)            = 0
ptx_get_cpuinfo(0x00000001, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000001, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
wpar_vmgetinfo(0, 0x30683EF8, 13, 0)            = 0
ptx_get_cpuinfo(0x00000002, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000002, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
wpar_vmgetinfo(0, 0x30683EF8, 13, 0)            = 0
ptx_get_cpuinfo(0x00000003, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000003, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003B0, 0x00000000, 0x00000000) = 0x00000000
wpar_vmgetinfo(0, 0x30683EF8, 13, 0)            = 0
ptx_get_cpuinfo(0x00000004, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000004, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
wpar_vmgetinfo(0, 0x30683EF8, 13, 0)            = 0
ptx_get_cpuinfo(0x00000005, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000005, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000
wpar_vmgetinfo(0, 0x30683EF8, 13, 0)            = 0
ptx_get_cpuinfo(0x00000006, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000006, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003D0, 0x00000000, 0x00000000) = 0x00000000
wpar_vmgetinfo(0, 0x30683EF8, 13, 0)            = 0
ptx_get_cpuinfo(0x00000007, 0x2FF21618, 0x2FF20E54, 0xD03E84C0, 0xD03E84C0, 0xD03EA194, 0x00000000, 0xFFFFFFFF) = 0x00000000
ptx_get_wparcpustats(0x00000000, 0x00000007, 0x2FF21718, 0x0000D032, 0x00000000, 0x000003C0, 0x00000000, 0x00000000) = 0x00000000

# 5  
Old 06-01-2009
lsconf or prtconf will show processor number and type as well as other info.
From AIX 6.1 nmon is shipped with AIX as an option on the topas command.
# 6  
Old 06-06-2009
Thanks all for your help.
I found the perfstat library, which seems to contain access to the information I need:

Help -

As I need this information in my C++ coding without calling system commands, this seems to be the solution.
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