Technical data

3-58 Computer Group Literature Center Web Site
Test Descriptions
3
PATTERN - WriteThru Pattern
Command Input
PPC1-Diag>l2cache pattern
Description
This test performs a write/read test on the L2 Cache. The main objective
of this test is to exercise the L2 Cache WriteThru control, using multiple
bit patterns. The test flow is as follows:
Turn on the cache with WriteThru. Write an incrementing pattern to
memory and the cache. Verify pattern is in the cache. Turn off the cache.
Verify the pattern is outside of cache.
Response/Messages
After the command has been issued, the following line is printed:
L2CACHE PATTERN: L2-Cache WriteThru Pattern... Running --->
If all parts of the test are completed correctly, then the test passes:
L2CACHE PATTERN: L2-Cache WriteThru Pattern... Running ---> PASSED
If any part of the test fails, then the display appears as follows:
L2CACHE PATTERN: L2-Cache WriteThru Pattern... Running ---> FAILED
L2CACHE/PATTERN Test Failure Data:
(error message)
Refer to the section L2CACHE Error Messages for a list of the error
messages and their meaning.