tests/benchmark/run

   1 #!/bin/bash
   2 #
   3 # run ust benchmark
   4 #
   5
   6 echo "ust benchmark"
   7
   8 NR_EVENTS=4000000
   9 NR_CPUS=2
  10 echo "using $NR_CPUS processor(s)"
  11 echo "using $NR_EVENTS events per cpu"
  12
  13
  14 rm -f /tmp/bench.txt
  15 # without markers
  16 echo ">running without markers"
  17 #t1=$(/usr/bin/time -f%e usttrace ./bench1 $NR_CPUS $NR_EVENTS 2>&1 1> /dev/null)
  18 t1=$(/usr/bin/time -f%e ./bench1 $NR_CPUS $NR_EVENTS 2>&1 1> /dev/null)
  19 echo " time=$t1 sec"
  20
  21
  22 rm -f /tmp/bench.txt
  23 # with markers
  24 echo ">running with markers activated"
  25 t2=$(/usr/bin/time -f%e usttrace ./bench2 $NR_CPUS $NR_EVENTS 2>&1 1> /dev/null)
  26 echo " time=$t2 sec"
  27
  28
  29 #penalty = t2 - t1
  30 echo
  31 penalty=$(echo "$t2 - $t1;" | bc)
  32 echo "time penalty=$penalty sec"
  33
  34 #event = penalty / (nr_events * nr_cpus)
  35 event=$(echo "scale=10; ($penalty / ($NR_EVENTS * $NR_CPUS));" | bc)
  36 echo "time penalty per event=$event sec"
  37
  38 rm -f /tmp/bench.txt