run_one

#!/bin/bash

set -e
#set -x

# check params
if [ ! -f "template/$1" -o -z "$3" ]; then
    echo "usage: $0 fio_job_template file size [numjobs]" 1>&2
    exit
fi

size="$3"
njobs=1

if [ -n "$4" ]; then
	njobs=$4
fi

# examine the fio tool
unset SP_FIO_DETECT_PRINT
. ./fio-detect

# prepare config
mkdir -p conf
cp "template/$1" conf/

printf "\n# file autogenerated from templates/$1, please do not edit\n\nfilename=$2\n" >>conf/$1
if [ -n "$size" ]; then
  printf "\nsize=$size\n" >>conf/$1
fi

# use the last available CPU in this process's task set
# 0-7 -> 7
# 0-1,4-6,22 -> 22
# 3,7 -> 7

# run test
echo Running test $1
mkdir -p res
cat /proc/stat >res/$1.cpu.pre
if [ $njobs -eq 1 ]; then
	cpu="$(taskset -c -p "$$" | sed -e 's/.*[,-]//')"
	taskset -c $cpu fio $SP_FIO_PARAMS conf/$1 >res/$1.fio.$SP_FIO_EXT 2>res/$1.fio.err
else
	fio $SP_FIO_PARAMS conf/$1 >res/$1.fio.$SP_FIO_EXT 2>res/$1.fio.err
fi
cat /proc/stat >res/$1.cpu.post