benchmark

#!/bin/bash
#
# Simple benchmarking script. Creates a bunch of /tmp files.
# Places final output in .csv files in the current directory.

dict() {
 ./$1 < /usr/share/dict/words
}

seq2M() {
 seq 2000000 | ./$1
}

for cmd in dict seq2M; do
  first=1
  for bm in blt_bm cbt_bm critbit_bm map_bm umap_bm; do
    for n in `seq 10`; do
      if [[ $n -eq 1 ]]; then 
        echo heading, $bm > /tmp/output.col.$bm
        $cmd $bm | sed 's/^[^ ]* //;s/: / /;s/[^0-9]*$//' > /tmp/output.$bm
      else
        $cmd $bm | sed 's/.*: //;s/[^0-9]*$//' | paste -d' ' /tmp/output.$bm - > /tmp/output.paste.$bm
        mv /tmp/output.paste.$bm /tmp/output.$bm
      fi
    done
    awk '{
      sum=0
      for(i=2; i<=NF; i++) sum+=$i
      if ($1!="overhead") {
        printf "%s, %.6f\n", $1, sum/(NF-1)
      } else {
        printf "%s, %d\n", $1, sum/(NF-1)
      }
    }' /tmp/output.$bm >> /tmp/output.col.$bm
    if [[ $first -eq 1 ]]; then
      sort /tmp/output.col.$bm > /tmp/out.tab
      first=0
    else
      sort /tmp/output.col.$bm > /tmp/out.sort
      join -a1 -a2 -t, -o auto -e' ' /tmp/out.tab /tmp/out.sort > /tmp/out.join
      mv /tmp/out.join /tmp/out.tab
    fi
  done
  mv /tmp/out.tab "$cmd".csv
done