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16 lines
979 B
Plaintext
16 lines
979 B
Plaintext
RAMspeed is a command line utility to measure cache and memory performance of
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computer systems. It offers 18 cache and memory benchmarks for i386 and amd64
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machines, though 6 only for alpha ones. There are *mark benchmarks such as
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INTmark, FLOATmark, MMXmark and SSEmark. They operate with linear (sequential)
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data streams passed through ALU, FPU, MMX and SSE units respectively.
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There are also *mem benchmarks such as INTmem, FLOATmem, MMXmem and SSEmem.
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These are supposed to illustrate how fast is actual read/write memory
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performance. There are also non-temporal versions of MMX and SSE benchmarks.
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They have been coded with special instructions to minimise cache pollution on
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memory reads and to eliminate it completely on memory writes. In addition, they
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operate with a built in aggressive data prefetching algorithm. In some cases,
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non-temporal MMXmark and SSEmark can deliver almost 100% of theoretical
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bandwidth while reading.
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WWW: http://alasir.com/software/ramspeed/
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