Changes

Jump to: navigation, search

Dhrystone howto

358 bytes added, 16:25, 30 December 2010
no edit summary
<font style="font-size:110%"><b>4. Run "make"</b></font>
Running make in the current directory should only produce warnings!! Here is an output of the make command with errors warnings relating to c library functions that can be ignored.
<blockquote>
<font style="font-size:110%><b>1. Run the executable by typing ''./gcc_dry2''</b></font>
The program will start to ask you for a ''number of runs''. By convention on newer machines(>=1GHz), the number of runs used is about '''~100000000''' (100 million). There are no rules or standards about how many runs it should be, . Some people calculate the number of runs through "Dhrystone run time erros" (way too advanced); what matters is the consistency of the result. For consistent results, dhrystone is executed more than 5 times with same values for number of runs.
Using the formula:
'''1333333.4 / 1757 = 758.87''' ''DMIPS'' == Project Leader(s) ==
Name(s) The result shown was an actual test for a beagleboardXM machine with 1GHz of primary people working on processor speed. = And... = <font style="font-size:90%">From ARM White paper</font><br /> "When first released, the projectDhrystone benchmark fulfilled a useful function – at least it gave an alternative indicator to vendors’ literal MIPS ratings. If you want to join a project as leaderHowever, more than twenty years later, discuss with other leaders firstthere are undoubtedly better benchmarks available for measuring processor performance. Include links to personal pages within wiki"
2
edits

Navigation menu