ddbench

ddbench

#!/bin/bash
  
if ! mountpoint -q /opt/armv7/scratch; then
  echo "nfs share not mounted"
  exit 1
fi

calc() {
  diff=$(echo "scale=6; $finish - $start" | bc)
  simpdiff=$(echo "scale=2; $finish - $start" | bc)
  runsleft=$(echo "scale=2; $limit-$x"| bc)
  secleft=$(echo "scale=2; $runsleft*$diff"|bc)
  minleft=$(echo "scale=2; $runsleft*$diff/60"|bc)
  eta=$(date -d "($date) $secleft sec" +%r)
  echo "Run $x/$limit took $simpdiff seconds. ETA: $eta or about $minleft min from now."
  echo "$diff" >> "$HOME/results.csv"
}

limit="32"

x=0
while [[ "$x" -lt "$limit" ]]; do
  x=$(( x + 1 ))
  RUNDATE=$(date "+%F %T")
  start=$(date +%s.%N)
  dd if=/dev/zero of=/opt/armv7/scratch/fill bs=4M count=250
  finish=$(date +%s.%N)
  calc
done