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MemTest86 and Memtest86+ are memory test software programs designed to test and stress test an x86 architecture computer's random-access memory (RAM) for errors, by writing test patterns to most memory addresses, reading back the data, and comparing for errors. [6]
Memory diagnostic software programs (e.g., memtest86) are low-cost or free tools used to check for memory failures on a PC. They are usually in the form of a bootable software distribution on a floppy disk or CD-ROM. The diagnostic tools provide memory test patterns which are able to test all system memory in a computer.
The gap between processor speed and main memory speed has grown exponentially. Until 2001–05, CPU speed, as measured by clock frequency, grew annually by 55%, whereas memory speed only grew by 7%. [1] This problem is known as the memory wall. The motivation for a cache and its hierarchy is to bridge this speed gap and overcome the memory wall.
A set of benchmarks allows you to test: memory read — tests the speed of data transfer from RAM to the processor. memory write — tests the speed of data transfer from the processor to RAM. memory copy — tests the speed of data transfer from one memory cell to another via the processor's cache.
In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. When it comes to high computer performance, one or more of the following factors might be involved:
Stress testing, in general, should put computer hardware under exaggerated levels of stress in order to ensure stability when used in a normal environment. These can include extremes of workload, type of task, memory use, thermal load (heat), clock speed, or voltages. Memory and CPU are two components that are commonly stress tested in this way.
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Improved classification of Memory and I/O. 5 [15] 28-08-2014 CPU single-threaded performance testing New engines graphic performance: 2D(Cocos2D) - 3D(Havok). New test for 64-bit CPU. New test HTML 5. Support for Android Runtime (ART). Update algorithm of total score. Unify criteria of Antutu X(prevent fraud and cheating). 6 [16] 03-12-2015
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