gistfile1.txt

#!/usr/bin/env bash

# Simple cpu test in bash

# Number of threads
numthreads=64 #Changing this will affect results


#Addition
function count() {
i=0; 
while (( i < $1 )); 
  do (( i ++ )); 
done
}

#Multiplication
function multiply() {
i=2; 
for j in `seq 0 300000`; 
  do i=$((i*2)); 
  if [ $i -gt 35184372088832 ]; 
    then i=$((i/23)); 
  fi; 
done;
}

#Single Thread Test
start=`date "+%s"`;
count 10000000
end=`date "+%s"`;
singleresult=$((end-start))


#Mutli Thread Combo Test
start=`date "+%s"`;
numtests=2
threads=$((numthreads/numtests))

for j in `seq 1 $threads`; do 
  count 30000 &
  multiply &
done;

wait
end=`date "+%s"`; 
multiresult=$((end-start))


p4baselinesingle=167
p4baselinemulti=228
diffs=`echo "scale=2; ( $p4baselinesingle / $singleresult ) * 100" | bc -l`
diffm=`echo "scale=2; ( $p4baselinemulti / $multiresult ) * 100" | bc -l`

echo "Threading"
echo Single: $singleresult
echo "Single: This cpu at $diffs% the speed of a Pentium D 935 @ 3.2Ghz"
echo Multi:: $multiresult
echo "Multi: This cpu at $diffm% the speed of a Pentium D 935 @ 3.2Ghz"

# Results (lower is better):
# Intel Pentium D 935 @ 3.2Ghz }{    S: 167 M: 228
# Intel T7300 @ 2.0Ghz }{            S: 84  M: 129
# AMD Athlon II X3 445 @ 3.1Ghz }{   S: 67  M: 63
# AMD Opteron 2300 8core @ 2.1Ghz }{ S: 101 M: 37
# Intel i5-3570K CPU @ 3.4GHz }{     S: 40  M: 28