| SunVTS 6.2 Test Reference Manual for x86 Platforms |    
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| SunVTS 6.2 Test Reference Manual for x86 Platforms |
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| C H A P T E R 11 |
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Level 1 Data Cache Test (l1dcachetest) |
l1dcachetest exercises the level 1 Data cache in the CPU module . The test writes, reads, and verifies access of multiple virtual addresses. The virtual addresses are chosen so that they cause targeted hits and misses in the cache. The test dynamically determines the size and organization of the cache and tunes the test accordingly to be effective on the l1dcache.
l1dcachetest provides data path testing of on-chip buses. With rapid move to deep sub-micron (DSM) designs, GHz clock frequencies, feature size process of 0.18 micron and below, l1dcachetest ensures the integrity of signals as they traverse conductors on a chip is becoming challenge. l1dcachetest subtests induce crosstalk noise in on-chip data buses by using Maximum Aggressor Fault (MAF) models.
l1dcahetest is self-scaling and adaptive, scaling the size of the system. l1dcachetest is multthreaded. Selection of CPU IDs is one of the options. But if that option is not specified, the test automatically retrieves the number of CPUs in the system and creates that many threads of l1dcachetest to give coverage to the whole system at a given time. The test also determines the sizes and organization of l1cache.
To reach the following dialog box, 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 might not include the device appropriate to this test. Refer to the SunVTS User's Guide for more details.
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Note - Only one l1dcachetest gets registered for all the CPUs in the system. |
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Note - The l1dcachetest is automatically bound to a processor. Do not use the Processor Affinity option for the l1dcachetest. |
/opt/SUNWvts/bin/l1dcachetest standard_arguments [-scruvdtlxnf] [-p n] [-i n] [-w n] [ -o [ M=0+1+2+3+... ],[ count=number ], [ pcloop=number ], [wcloop=number], [perf=Enabled|Disabled], [dev=l1cache] ]
| SunVTS 6.2 Test Reference Manual for x86 Platforms | 819-6456-10 |
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