#! /bin/sh -f

for i in 4 8 16 32 64 128 256
do
    awk "\$2 < 10000000 && \$4 == $i {print log(\$2)/log(2), \$6}" < data > data.stride.$i
done  

for i in 16 32 64 128 256 512
do
    awk "\$2 < 200000 && \$4 == $i {print log(\$2)/log(2), \$6}" < data > small.stride.$i
done  

for i in 131072 262144 524288 16777216 33554432
do
    awk "\$2 == $i {print log(\$4)/log(2), \$6}" < data > data.size.$i
done