Technical data

3-62 Computer Group Literature Center Web Site
Test Descriptions
3
WRTHRU - WriteThru
Command Input
PPC1-Diag>l2cache wrthru
Description
This test performs a write/read test on the L2 Cache. This test verifies that
the device can be both accessed and that the L2 Cache WriteThru control
is working. The test flow is as follows:
Turn on the cache with WriteThru. Write an incrementing pattern to
memory and the cache. Verify the incrementing pattern. Turn off the
cache. Verify that the incrementing pattern is in memory. Write
decrementing pattern to memory. Verify the decrementing pattern. Turn
on the cache with WriteThru, and verify the incrementing pattern in cache.
Response/Messages
After the command has been issued, the following line is printed:
L2CACHE WRTHRU: L2-Cache WriteThru......... Running --->
If all parts of the test are completed correctly, then the test passes.
L2CACHE WRTHRU: L2-Cache WriteThru......... Running ---> PASSED
If all parts of the test are not completed correctly, then the test does not
pass:
L2CACHE WRTHRU: L2-Cache WriteThru......... Running ---> FAILED
L2CACHE/WRTHRU Test Failure Data:
(error message)
Refer to the section L2CACHE Error Messages for a list of the error
messages and their meaning.