C H A P T E R  13

Integer Unit Test (iutest)

The Integer Unit Test (iutest) tests the resident integer unit in Sun SPARC CPUs. It exercises all of the register windows present in the Integer Unit of the CPU. The successful completion of the test implies that all of the register windows are functioning properly and failure implies a faulty register.

iutest Options

To reach the dialog box below, right-click on the test name in the System Map and select Test Parameter Options. If you do not see this test in the System Map, you might need to expand the collapsed groups, or your system may not include the device appropriate to this test. Refer to the SunVTS User's Guide for more details.

FIGURE 13-1 iutest Test Parameter Options Dialog Box

Screenshot of the iutest Test Parameter Options dialog box.

For the test options in the iutest Test Parameter Options dialog box, Test Depth is the only required option. Test Depth corresponds to the number of times that all the register windows are getting tested. The default, maximum and minimum values of the Test Depth are 8, 64, and 1 respectively.

iutest Test Modes
TABLE 13-1 iutest Supported Test Modes

Test Mode



Displays the type of CPU implementation (for example, sparcv7 or sparcv9, etc.), the operating frequency, and CPU status (online, offline, etc.).



Verifies all of the register windows and returns the appropriate error message if there is a faulty register. Otherwise, displays a successful test message.

iutest Command-Line Syntax

/opt/SUNWvts/bin/iutest standard_arguments -o depth=val,dev=cpu-unitN

In the iutest command-line syntax, val is the value of the Test_Depth parameter option as described in the preceding iutest options section. N is the CPU unit number (0,1,2, etc.). The test behavior is unpredictable if options other than those described in this section are entered.

Note - 64-bit tests are located in the sparcv9 subdirectory: /opt/SUNWvts/bin/sparcv9/testname, or the relative path to which you installed SunVTS. If a test is not present in this directory, then it may only be available as a 32-bit test. For more information refer to the "32-Bit and 64-Bit Tests" section of the SunVTS 5.1 Test Reference Manual (816-5145-10).