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| 1 | .TH DHRYSTONE 1
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| 2 | .SH NAME
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| 3 | dhrystone \- integer benchmark
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| 4 | .SH SYNOPSIS
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| 5 | \fBdhrystone\fR
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| 6 | .br
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| 7 | .de FL
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| 8 | .TP
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| 9 | \\fB\\$1\\fR
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| 10 | \\$2
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| 11 | ..
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| 12 | .de EX
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| 13 | .TP 20
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| 14 | \\fB\\$1\\fR
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| 15 | # \\$2
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| 16 | ..
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| 17 | .SH EXAMPLES
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| 18 | .EX "dhrystone" "Run the dhrystone benchmark"
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| 19 | .SH DESCRIPTION
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| 20 | .PP
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| 21 | Many years ago, a floating-point benchmark called \fIwhetstone\fR was
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| 22 | popular for benchmarking FORTRAN programs.
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| 23 | Nowadays, an integer benchmark called \fIdhrystone\fR is widely used
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| 24 | for benchmarking UNIX systems.
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| 25 | This is it.
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| 26 | Be warned, however, that \fIdhrystone\fR is entirely CPU bound, and
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| 27 | goes blindingly fast on machines with high-speed caches.
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| 28 | Although this is a good measure for programs that spend most of their
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| 29 | time in some inner loop, it is a poor benchmark for I/O bound applications.
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