DHRYSTONE

Domain	Definition
Computing	Dhrystone A short synthetic benchmark program by Reinhold Weicker , , intended to be representative of system (integer) programming. It is available in ADA, Pascal and C. The current version is Dhrystone 2.1. The author says, "Relying on MIPS V1.1 (the result of V1.1) numbers can be hazardous to your professional health." Due to its small size, the memory system outside the cache is not tested. Compilers can too easily optimise for Dhrystone. String operations are somewhat over-represented. Sources (ftp://netlib.att.com:/netlib/benchmark/) (files dhry-ada.Z, dhry-c.Z and dhry-pascal.Z). Results (http://performance.netlib.org/performance/html/dhrystone.data.col0.html) and (ftp://ftp.nosc.mil/pub/aburto/dhry.tbl). (1994-11-14). Source: The Free On-line Dictionary of Computing.
Source: compiled by the editor from various references; see credits.

Specialty Definition: Dhrystone

Dhrystone is a benchmark invented by Reinhold P. Weicker that tests the integer performance of a CPU and the optimisation capabilities of the compiler used to generate the code.

The output from the benchmark is the number of Dhrystones per second (the number of iterations of the main code loop per second).

One common representation of the Dhrystone benchmark is the DMIP - Dhrystone MIPS - obtained when the Dhrystone score is divided by 1,857 (the number of Dhrystones per second obtained on the VAX 11/785, a 1 MIPS machine).

Dhrystone was named as a pun on the Whetstone benchmark.

Like most synthetic benchmarks, the Dhrystone benchmark is not particularly useful in measuring the performance of real-world computer systems and has fallen into disuse, replaced by benchmarks that more closely resemble typical actual usage.

References:

Newsgroup posting for calculation of DMIPS http://groups.google.com/groups?q=DMIPS&hl=en&group=comp.benchmarks&rnum=1&selm=tsengDKq856.Gy6%40netcom.com
comp.benchmarks FAQ

Usage Frequency: DHRYSTONE

"DHRYSTONE" is generally used as a noun (proper) -- approximately 100.00% of the time. "DHRYSTONE" is used about 2 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted)

Frequency of Internet Keywords: DHRYSTONE

Anagrams: DHRYSTONE

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "d-e-h-n-o-r-s-t-y"
	-1 letter: drystone, threnody.
	-2 letters: dehorns, dehorts, destroy, honesty, hornets, hoydens, rhytons, rodents, shorted, shorten, snorted, stroyed, thorned, throned, thrones.
	-3 letters: dehorn, dehort, doters, doyens, drones, dryest, ethnos, henrys, herons, honers, honest, honeys, hordes, horned, hornet, horsed, horsey, horste, hosted, hoyden, hydros, nestor, norths, noshed, nosher, noters, nother, others, oyster, redons, reshod, reshot, rhyton, rodent.
	Words containing the letters "d-e-h-n-o-r-s-t-y"
	+2 letters: heterodynes.
	+3 letters: dehydrations, hydrogenates, rehydrations, stonyhearted, thunderously.
	+5 letters: dehydrogenates, dryopithecines, hydrocortisone, hydrogenations, hypermodernist, thermodynamics.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.