How can i increase cpu utilization on a aix unix p5 server

Here's how to get detail on a service without any external tools on Windows 7, 8 and 10:

Open the Resource Monitor:

• Open Task Manager and click on the Performance tab
• Click on "Open Resource Monitor" at the bottom

Show Service Detail:

• Click on the "CPU" tab
• In the "Processes" section, find the process you want; you can sort by CPU by clicking the "CPU" column header
  • Check the box next to it
• Expand the "Services" section below; you will see which specific service is using CPU

I had to figure this out because svchost was consuming a lot of resources and this was the only way i could see that upnphost was the culprit.

You can try using ltrace with the -c trace (very similar to strace but for library calls instead of system calls). This won't be complete as actually profiling the code and might not be the CPU time breakdown you are looking for, but it might just be the quick syadmin level tool you need.

kbrandt@kbrandt-acer:~$ ltrace -c xcalc
% time     seconds  usecs/call     calls      function
------ ----------- ----------- --------- --------------------
 66.83    0.222693        4453        50 XtCreateManagedWidget
 28.52    0.095048       95048         1 XtAppInitialize
  0.85    0.002837        2837         1 XtRealizeWidget
  0.83    0.002764        2764         1 XSetWMProtocols
  0.77    0.002581        2581         1 XtGetApplicationResources
  0.42    0.001383          53        26 XtWindow
  0.41    0.001371          54        25 XtDisplay
...
------ ----------- ----------- --------- --------------------
100.00    0.333219                   168 total

strace also with the -c switch will give you similar output but will show the system calls (the calls the libraries are using -- so sort of a level deeper).

The caveat with both of these break downs is these are wall clock time spent on each call and it doesn't show if this was active or idle time.

If you have the code and want to go all out you want code profiling. Stack Overflows "What can I use to profile my C++ code in Linux?" should get you started. I have used Valgrind with C code and liked it.