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Length: 1157 (0x485) Types: TextFile Names: »dhry.doc«
└─⟦db229ac7e⟧ Bits:30007240 EUUGD20: SSBA 1.2 / AFW Benchmarks └─⟦this⟧ »EUUGD20/AFUU-ssba1.21/ssba1.21E/dhry/dhry.doc«
DHRYSTONE The too much famous and unavoidable DHRYSTONE was originally created by R.Weicker in ADA and in 1984 as a synthetic mix of in- structions modeled after a total of about 31 millions instruc- tions from real applications in many different high level languages. It is re-written in C by R.Richardson then posted in Usenet, hence its wide popularity. The DHRYSTONE is a rather small, thus compilable by any C compiler, and fits into most caches, thus exaggerating their effectiveness. It has many other notable attributes such as heavy emphasis on string manipulation, procedure call, thus favorizing processors with fast string han- dling and call/return functions, no I/O operation, no system call and no floating computation. The DHRYSTONE qualifies well as a good indicator of efficiency in development work, especially if done in C and in Unix. The DHRYSTONE used here, version 1.1, is run in four combinations: with and without optimization, with and without register and with loops=500000 for good accuracy.