The official CPU Utility/2 home page

The CPU Utility/2 home page

Welcome to the home of CPU Utility/2 or shorter just CPU/2, a Freeware utility that allows you either to toggle processors on your OS/2 SMP workstation from Online to Offline (and vice versa) or to display the relative CPU utilization for the busy, idle and interrupt states per CPU on your OS/2 Warp Server Adv. SMP, Warp 4 and Warp Server for e-Business (WSeB, Aurora) (and likely Warp 3 with some recent fixpacks) workstations.

News

CPU/2 has been updated to version 1.10. It will now display the correct values under Warp Server for e-Business (WSeB, Aurora). Special thanks to Scott E. Garfinkle (seg) for telling me how to initialize the performance counters correctly (that info is just missing in the Warp Toolkit V4.5).

Description of CPU/2

If you have installed OS/2 Warp Server Advanced SMP, then you likely have noticed that it includes the MPCPUMON utility, which allows you to toggle your processors from Online to Offline (and vice versa) and displays a CPU utilization graph, which gives you per processor information about how busy (ranging from 0 to 100 percent) your PC is.

I wrote CPU/2, because:

I was interested in the OS/2 APIs required to make such a program
MPCPUMON is a PM program and thus can't be run in a batch job or from a remote telnet session
the CPU utilitzation shows very often unexplainable "spikes" even on an idle running system
the CPU utilization measurement logic could now easily be added to a Windows NT look-alike Task Manager

When invoking CPU/2 without commandline arguments, the help is displayed:

CPU/2 V1.10 - UP and MP CPU Utility/2 for OS/2 Copyright (C) by Roman Stangl, 1998, 2000 (Roman_Stangl@at.ibm.com) http://geocities.datacellar.net/SiliconValley/Pines/7885/ CPU/2 allows you to query or setting the processor status on supported single (UP ... uniprocessor) or multiprocessor (MP ... multiprocessor) systems. It also allows you to measure the processor utilitzation for both UP and MP configurations. This program is Freeware (and can be freely distributed, as long as the archive is kept complete), however you must not port it to any of the inferior Windows platforms! CPU0005I: Insufficient commandline options specified. Syntax: CPU /? Where: /? ... display help Returns: 0 .... Successful completion 1+ ... Fatal, unrecoverable exception The return code is the nummeric value of the exception for which CPU/2 has displayed and error message CPUxxxxy (where xxxx is the return code and y is the type of the exception, which includes Informational and Error messages).

CPU/2 will display information about its required and optional parameters when you invoke CPU /?.

CPU/2 V1.10 - UP and MP CPU Utility/2 for OS/2 Copyright (C) by Roman Stangl, 1998, 2000 (Roman_Stangl@at.ibm.com) http://geocities.datacellar.net/SiliconValley/Pines/7885/ CPU0006I: Commandline options: Syntax: CPU Request [Language] Where: Request ... /Verbose to query the processor status ... /Online x to set processor number x to online status ... /Offline x to set processor number x to offline status ... /Performance to activate Performance measurements Language ... /Language xx to display NLS messages out of CPUxx.msg (e.g. GR for German) CPU/2 determines your country's language from the COUNTRY=xx statement in your CONFIG.SYS. If there exists no CPUxx.msg file in the directory CPU/2 was installed into where xx is the parameter from the COUNTRY statement, CPU/2 will default to the US english messages. However, if either the language detection is not supported for your country or you want to see messages in a certain language, you can, by using the /Language xx parameter, force CPU/2 to use a certain language (which of course will display and error message and return to US english, if no corresponding CPUxx.msg is found).

APM/2 is provided in 2 NLS versions:

APM.EXE with APMUs.msg (English version)
APM.EXE with APMGr.msg (German version)

You can easily create your own (SBCS single byte character set) national language version, just use CPUUs.txt as a template, translate the messages there without altering the row and column layout, indentions, characters per line, ... and compile it with the MKMSGF compiler from the Toolkit (or send me the file and I'll try to compile it).
If someone volunteers to create a national language version, I'm prepared to add it to my site and the package (surely you will be credited too ;-).

Using CPU/2

/Verbose	This option displays the current status of your processor(s). Currently to use that option successfully, you need to be running Warp Server Advanced SMP, but future OS/2 versions likely will support the required APIs too.
/Online x /Offline x	This option allows you to toggle a processor from Online to Offline status or vice versa. CPU/2 verifies that your request has been performed correctly by verbosing and comparing the new processor status with the requested one. Again, currently that request will only work on Warp Server Advanced SMP. One thing to mention is that processor 1 of an SMP system can't be set to Offline (though the term "symmetrical" from SMP would imply that) I'm afraid the current Intel based multiprocessor specification APIC 1.4 defines CPU 1 as a special one which must run in order for the whole PC to run (I suppose that this is the only CPU that can process certain hardware interrupts).
/Performance	This options verboses the relative CPU utilization per processor for the categories Idle, Busy and Interrupt every second until the Space Bar is pressed: In above example, I was running the RC5 cracking client so there is no Idle time, both CPUs are flat out, just CPU 1 was also spending some time in Interrupt processing (I have never seen and Interrupt processing time for CPU 2, that's why I suppose CPU 1 can't be set to Offline, even MPCPUMON can't, by specifying the option /APIC on OS2APIC.PSD I would expect symmetrical interrupt processing on all CPUs). For each CPU found in your system, this information will be displayed, however only 4 will fit into a "normal" 80 columns wide commandline. As the status will be updated every second on the same line, 5 of more CPUs will cause an additional linefeed in between and the output formatting will be corrupted a little bit. (You can use "MODE 132,25" as a workaround though.) To prevent that short-lived temporary spikes (as one can see in MPCPUMON) will be reported, an average of the last measurements (currently 5) is calculated and displayed. This filters such spikes and causes a much smoother display. On final thing to note is, that this option will also work on Warp 4 and likely also Warp 3 systems (with some recent fixpacks applied), of course it will only show data for 1 CPU, as those OS/2 versions will ignore any CPU installed except CPU 1.
/Language xx	This option allows you to force using the national language version of CPU/2 where CPUxx.msg exists. CPU/2 ships with CPUUs.msg and CPUGr.msg, being the English and German NLS versions. CPU/2 tries to load messages in the language of the system where it is running on, e.g. on a German setup (049 at the COUNTRY statement in CONFIG.SYS) the German message file is used, though those automatic support is limited to only major languages. You can easily use CPUUs.txt as a template, translate the messages while preserving the row and column layout, and then compile them into your national language CPUxx.msg messagefile. As said, if you're running a major language as e.g. French or Spanish, NLS support will be used automatically then, otherwise just supply the /Language xx option.

CPU/2 download

You are welcome to download version 1.10 of CPU Utility/2 (inclusive its source written with VisualAge C++) from this site.

CPU/2 is Freeware, but I welcome you to credit me if you're going to reuse some code and I'm also very interested to hear about your product where you are using the code, likely I will also add a link to it from my pages!

You are also welcome to upload this program to any distribution (like e.g. Hobbes, Leo, ...) or to mention it in foras or E-Zines (like e.g. Warpcast) as I might not have the time to do it myself.