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# time_tool.sh - Shell script to test various timings.
# This is a rough tester -- its job is to work quickly rather than precisely.
# (Jim Plank)
#!/bin/sh
if [ $# -lt 3 ]; then
echo 'usage sh time_tool.sh M|D|R|B w method' >&2
exit 1
fi
op=$1
w=$2
shift ; shift
method="$*"
if [ $op != M -a $op != D -a $op != R -a $op != B ]; then
echo 'usage sh time_tool.sh M|D|R|B w method' >&2
echo 'You have to specify a test: ' >&2
echo ' M=Multiplication' >&2
echo ' D=Division' >&2
echo ' R=Regions' >&2
echo ' B=Best-Region' >&2
exit 1
fi
# First, use a 16K buffer to test the performance of single multiplies.
fac=`echo $w | awk '{ n = $1; while (n != 0 && n%2==0) n /= 2; print n }'`
if [ $fac -eq 0 ]; then
echo 'usage sh time_tool.sh M|D|R|B w method' >&2
echo 'Bad w' >&2
exit 1
fi
bsize=16384
bsize=`echo $bsize $fac | awk '{ print $1 * $2 }'`
if [ `./gf_time $w M -1 $bsize 1 $method 2>&1 | wc | awk '{ print $1 }'` -gt 2 ]; then
echo 'usage sh time_tool.sh w method' >&2
echo "Bad method"
exit 1
fi
if [ $op = M -o $op = D ]; then
iter=1
c1=`./gf_time $w $op -1 $bsize $iter $method`
t=`echo $c1 | awk '{ printf "%d\n", $4*1000 }'`
s=`echo $c1 | awk '{ print $8 }'`
bs=$s
while [ $t -lt 1 ]; do
bs=$s
iter=`echo $iter | awk '{ print $1*2 }'`
c1=`./gf_time $w $op -1 $bsize $iter $method`
t=`echo $c1 | awk '{ printf "%d\n", $4*1000 }'`
s=`echo $c1 | awk '{ print $8 }'`
done
echo "$op speed (MB/s): " $bs " W-Method:" $w $method
exit 0
fi
bsize=16384
bsize=`echo $bsize $fac | awk '{ print $1 * $2 }'`
best=0
while [ $bsize -le 4194304 ]; do
iter=1
c1=`./gf_time $w G -1 $bsize $iter $method`
t=`echo $c1 | awk '{ printf "%d\n", $6*1000 }'`
s=`echo $c1 | awk '{ print $10 }'`
bs=$s
while [ $t -lt 1 ]; do
bs=$s
iter=`echo $iter | awk '{ print $1*2 }'`
c1=`./gf_time $w G -1 $bsize $iter $method`
t=`echo $c1 | awk '{ printf "%d\n", $6*1000 }'`
s=`echo $c1 | awk '{ print $10 }'`
done
if [ $bsize -lt 1048576 ]; then
str=`echo $bsize | awk '{ printf "%3dK\n", $1/1024 }'`
else
str=`echo $bsize | awk '{ printf "%3dM\n", $1/1024/1024 }'`
fi
if [ $op = R ]; then
echo "Region Buffer-Size: $str (MB/s): " $bs " W-Method:" $w $method
fi
best=`echo $best $bs | awk '{ print ($1 > $2) ? $1 : $2 }'`
bsize=`echo $bsize | awk '{ print $1 * 2 }'`
done
echo "Region Best (MB/s): "$best " W-Method:" $w $method
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