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# Copyright (C) 2009, Parrot Foundation.
=head1 NAME
examples/benchmarks/rand.pir - rand dynop benchmark
=head1 SYNOPSIS
% time ./parrot examples/benchmarks/rand.pir [count]
=head1 DESCRIPTION
Times the computation of C<count> (default 1e8) random numbers using
the C<rand> dynop.
=cut
.loadlib 'math_ops'
.sub _main
.param pmc argv
.local int count
count = 1e8
.local int argc
argc = argv
if argc <= 1 goto no_arg
$S0 = argv[1]
count = $S0
no_arg:
count /= 8
.local num t0, t1, t2, t3, t4, t5, t6
.local num r_num, min_num, max_num
.local int r_int, min_int, max_int
.local int i
min_num = 1.0
max_num = 20.0
min_int = 1
max_int = 20
.local num tn0, tn1, tnull
tn0 = time
i = count
null_loop_top:
dec i
if i > 0 goto null_loop_top
tn1 = time
tnull = tn1 - tn0
t0 = time
i = count
t0_top:
r_num = rand
r_num = rand
r_num = rand
r_num = rand
r_num = rand
r_num = rand
r_num = rand
r_num = rand
dec i
if i > 0 goto t0_top
t1 = time
i = count
t1_top:
r_int = rand
r_int = rand
r_int = rand
r_int = rand
r_int = rand
r_int = rand
r_int = rand
r_int = rand
dec i
if i > 0 goto t1_top
t2 = time
i = count
t2_top:
r_num = rand max_num
r_num = rand max_num
r_num = rand max_num
r_num = rand max_num
r_num = rand max_num
r_num = rand max_num
r_num = rand max_num
r_num = rand max_num
dec i
if i > 0 goto t2_top
t3 = time
i = count
t3_top:
r_int = rand max_int
r_int = rand max_int
r_int = rand max_int
r_int = rand max_int
r_int = rand max_int
r_int = rand max_int
r_int = rand max_int
r_int = rand max_int
dec i
if i > 0 goto t3_top
t4 = time
i = count
t4_top:
r_num = rand min_num, max_num
r_num = rand min_num, max_num
r_num = rand min_num, max_num
r_num = rand min_num, max_num
r_num = rand min_num, max_num
r_num = rand min_num, max_num
r_num = rand min_num, max_num
r_num = rand min_num, max_num
dec i
if i > 0 goto t4_top
t5 = time
i = count
t5_top:
r_int = rand min_int, max_int
r_int = rand min_int, max_int
r_int = rand min_int, max_int
r_int = rand min_int, max_int
r_int = rand min_int, max_int
r_int = rand min_int, max_int
r_int = rand min_int, max_int
r_int = rand min_int, max_int
dec i
if i > 0 goto t5_top
t6 = time
report('null loop ', tn0, tn1, 0, count)
count *= 8
report('num ', t0, t1, tnull, count)
report('int ', t1, t2, tnull, count)
report('num_max ', t2, t3, tnull, count)
report('int_max ', t3, t4, tnull, count)
report('num_min_max', t4, t5, tnull, count)
report('int_min_max', t5, t6, tnull, count)
.end
.sub report
.param string name
.param num start
.param num end
.param num null_time
.param int count
.local num run_time
run_time = end - start
run_time -= null_time
if run_time > 0 goto time_ok
run_time = .000001
time_ok:
.local num per_second
.local int ps
per_second = count / run_time
ps = per_second
print name
print ': '
print ps
print ' per second ('
print count
print ' / '
print run_time
print " seconds)\n"
.end
# Local Variables:
# mode: pir
# fill-column: 100
# End:
# vim: expandtab shiftwidth=4 ft=pir:
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