[fio.git] / tools / genfio

#!/usr/bin/env bash
#
#  Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
#  Author: Erwan Velu  <erwan@enovance.com>
#
#  The license below covers all files distributed with fio unless otherwise
#  noted in the file itself.
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License version 2 as
#  published by the Free Software Foundation.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

BLK_SIZE=
BLOCK_SIZE=4k
SEQ=-1
TEMPLATE=/tmp/template.fio
OUTFILE=
DISKS=
PRINTABLE_DISKS=
RUNTIME=300
ETA=0
MODES="write,randwrite,read,randread"
SHORT_HOSTNAME=
CACHED_IO="FALSE"
PREFIX=""
PREFIX_FILENAME=""
IODEPTH=1

show_help() {
	PROG=$(basename $0)
	echo "usage of $PROG:"
	cat << EOF
-h				: Show this help & exit
-c				: Enable cached-based IOs
					Disabled by default
-a				: Run sequential test then parallel one
					Disabled by default
-s				: Run sequential test (default value)
					one test after another then one disk after another
					Disabled by default
-p				: Run parallel test
					one test after anoter but all disks at the same time
					Enabled by default
-D iodepth			: Run with the specified iodepth
					Default is $IODEPTH
-d disk1[,disk2,disk3,..]	: Run the tests on the selected disks
					Separated each disk with a comma
-z filesize                     : Specify the working file size, if you are passing filepaths to -d
                                        Disabled by default
-r seconds			: Time in seconds per benchmark
					0 means till the end of the device
					Default is $RUNTIME seconds
-b blocksize[,blocksize1, ...]  : The blocksizes to test under fio format (4k, 1m, ...)
					Separated each blocksize with a comma
					Default is $BLOCK_SIZE
-m mode1,[mode2,mode3, ...]     : Define the fio IO profile to use like read, write, randread, randwrite
					Default is "$MODES"
-x prefix			: Add a prefix to the fio filename
					Useful to let a context associated with the file
					If the prefix features a / (slash), prefix will be considered as a directory
-A cmd_to_run			: System command to run after each job (exec_postrun in fio)
-B cmd_to_run			: System command to run before each job (exec_prerun in fio)

Example:

$PROG -d /dev/sdb,/dev/sdc,/dev/sdd,/dev/sde -a -b 4k,128k,1m -r 100 -a -x dellr720-day2/

	Will generate an fio file that will run
		- a sequential bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 4k with write,randwrite,read,randread tests
			ETA ~ 4 tests * 4 disks * 100 seconds
		- a sequential bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 128k with write,randwrite,read,randread tests
			ETA ~ 4 tests * 4 disks * 100 seconds
		- a sequential bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 1m with write,randwrite,read,randread tests
			ETA ~ 4 tests * 4 disks * 100 seconds
		- a parallel bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 4k with write,randwrite,read,randread tests
			ETA ~ 4 tests * 100 seconds
		- a parallel bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 128k with write,randwrite,read,randread tests
			ETA ~ 4 tests * 100 seconds
		- a parallel bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 1m with write,randwrite,read,randread tests
			ETA ~ 4 tests * 100 seconds

Generating dellr720-day2/localhost-4k,128k,1m-all-write,randwrite,read,randread-sdb,sdc,sdd,sde.fio
Estimated Time = 6000 seconds : 1 hour 40 minutes
EOF
}

finish_template() {
echo "iodepth=$IODEPTH" >> $TEMPLATE

if [ "$RUNTIME" != "0" ]; then
	echo "runtime=$RUNTIME" >> $TEMPLATE
	echo "time_based" >> $TEMPLATE
fi

if [ "$CACHED_IO" = "FALSE" ]; then
	echo "direct=1" >> $TEMPLATE
fi
}


diskname_to_printable() {
COUNT=0
for disk in $(echo $@ | tr "," " "); do
	R=$(basename $disk | sed 's|/|_|g')
	COUNT=$(($COUNT + 1))
	if [ $COUNT -eq 1 ]; then
		P="$R"
	else
		P="$P,$R"
	fi
done
echo $P
}

gen_template() {
cat >$TEMPLATE << EOF
[global]
ioengine=libaio
invalidate=1
ramp_time=5
EOF
}

gen_seq_suite() {
TYPE=$1
disk=$2
PRINTABLE_DISK=$(diskname_to_printable $disk)
cat >> $OUTFILE << EOF
[$TYPE-$PRINTABLE_DISK-$BLK_SIZE-seq]
stonewall
bs=$BLK_SIZE
filename=$disk
rw=$TYPE
write_bw_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-seq.results
write_iops_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-seq.results
EOF
ETA=$(($ETA + $RUNTIME))
}

gen_seq_fio() {
for disk in $(echo $DISKS | tr "," " "); do
	for mode in $(echo $MODES | tr "," " "); do
		gen_seq_suite "$mode" "$disk"
	done
done
}


gen_para_suite() {
TYPE=$1
NEED_WALL=$2
D=0
for disk in $(echo $DISKS | tr "," " "); do
    PRINTABLE_DISK=$(diskname_to_printable $disk)
    cat >> $OUTFILE << EOF
[$TYPE-$PRINTABLE_DISK-$BLK_SIZE-para]
bs=$BLK_SIZE
EOF

if [ "$D" = 0 ]; then
    echo "stonewall" >> $OUTFILE
    D=1
fi

cat >> $OUTFILE << EOF
filename=$disk
rw=$TYPE
write_bw_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-para.results
write_iops_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-para.results
EOF
done

ETA=$(($ETA + $RUNTIME))
echo >> $OUTFILE
}

gen_para_fio() {
for mode in $(echo $MODES | tr "," " "); do
	gen_para_suite "$mode"
done
}

gen_fio() {
case $SEQ in
	2)
		gen_seq_fio
		gen_para_fio
	;;
	1)
		gen_seq_fio
	;;
	0)
		gen_para_fio
	;;
esac
}

parse_cmdline() {
while getopts "hacpsd:b:r:m:x:z:D:A:B:" opt; do
  case $opt in
    h)
	show_help
	exit 0
	;;
    b)
	BLOCK_SIZE=$OPTARG
	;;
    c)
	CACHED_IO="TRUE"
	;;
    s)
	if [ "$SEQ" = "-1" ]; then
		SEQ=1
	fi
      ;;
    x)
	PREFIX=$OPTARG
	echo "$PREFIX" | grep -q "/"
	if [ "$?" -eq 0 ]; then
		mkdir -p $PREFIX
		# No need to keep the prefix for the log files
		# we do have a directory for that
		PREFIX_FILENAME=""
	else
		# We need to keep the prefix for the log files
		PREFIX_FILENAME=$PREFIX
	fi
	;;
    r)
	RUNTIME=$OPTARG
      ;;
    p)
	if [ "$SEQ" = "-1" ]; then
		SEQ=0
	fi
      ;;
    m)
        MODES=$OPTARG;
      ;;
    d)
 	DISKS=$OPTARG
	PRINTABLE_DISKS=$(diskname_to_printable "$DISKS")
      ;;
    D)
	IODEPTH=$OPTARG
      ;;
    a)
	SEQ=2
      ;;
    B)
	echo "exec_prerun=$OPTARG" >> $TEMPLATE
      ;;
    A)
	echo "exec_postrun=$OPTARG" >> $TEMPLATE
      ;;
    z)
	FSIZE=$OPTARG
	echo "size=$FSIZE" >> $TEMPLATE
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      ;;
  esac
done

if [ "$SEQ" = "-1" ]; then
	SEQ=0
fi

SHORT_HOSTNAME=$(hostname -s)
case $SEQ in
	2)
		OUTFILE=${PREFIX}$SHORT_HOSTNAME-$BLOCK_SIZE-all-$MODES-$PRINTABLE_DISKS.fio
	;;

	1)
		OUTFILE=${PREFIX}$SHORT_HOSTNAME-$BLOCK_SIZE-sequential-$MODES-$PRINTABLE_DISKS.fio
	;;
	0)
		OUTFILE=${PREFIX}$SHORT_HOSTNAME-$BLOCK_SIZE-parallel-$MODES-$PRINTABLE_DISKS.fio
	;;
esac

if [ -z "$DISKS" ]; then
	echo "Missing DISKS !"
	echo "Please read the help !"
	show_help
	exit 1
fi

}

check_mode_order() {
FOUND_WRITE="NO"
CAUSE="You are reading data before writing them          "

# If no write occurs, let's show a different message
echo $MODES | grep -q "write"
if [ "$?" -ne 0 ]; then
	CAUSE="You are reading data while never wrote them before"
fi

for mode in $(echo $MODES | tr "," " "); do
	echo $mode | grep -q write
	if [ "$?" -eq 0 ]; then
		FOUND_WRITE="YES"
	fi
	echo $mode | grep -q "read"
	if [ "$?" -eq 0 ]; then
		if [ "$FOUND_WRITE" = "NO" ]; then
			echo "###############################################################"
			echo "# Warning : $CAUSE#"
			echo "# On some storage devices, this could lead to invalid results #"
			echo "#                                                             #"
			echo "# Press Ctrl-C to adjust pattern order if you have doubts     #"
			echo "# Or Wait 5 seconds before the file will be created           #"
			echo "###############################################################"
			sleep 5
			# No need to try showing the message more than one time
			return
		fi
	fi
done
}


########## MAIN
gen_template
parse_cmdline "$@"
finish_template
check_mode_order

echo "Generating $OUTFILE"
cp -f $TEMPLATE $OUTFILE
echo >> $OUTFILE

for BLK_SIZE in $(echo $BLOCK_SIZE | tr "," " "); do
	gen_fio
done
ETA_H=$(($ETA / 3600))
ETA_M=$((($ETA - ($ETA_H*3600)) / 60))
if [ "$ETA" = "0" ]; then
	echo "Cannot estimate ETA as RUNTIME=0"
else
	echo "Estimated Time = $ETA seconds : $ETA_H hour $ETA_M minutes"
fi
Commit	Line	Data
c60587f6	1	#!/usr/bin/env bash
afbbd646 EV	2	#
	3	# Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
	4	# Author: Erwan Velu <erwan@enovance.com>
	5	#
	6	# The license below covers all files distributed with fio unless otherwise
	7	# noted in the file itself.
	8	#
	9	# This program is free software; you can redistribute it and/or modify
	10	# it under the terms of the GNU General Public License version 2 as
	11	# published by the Free Software Foundation.
	12	#
	13	# This program is distributed in the hope that it will be useful,
	14	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	# GNU General Public License for more details.
	17	#
	18	# You should have received a copy of the GNU General Public License
	19	# along with this program; if not, write to the Free Software
	20	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21
	22	BLK_SIZE=
	23	BLOCK_SIZE=4k
	24	SEQ=-1
	25	TEMPLATE=/tmp/template.fio
	26	OUTFILE=
	27	DISKS=
bed59bab	28	PRINTABLE_DISKS=
afbbd646 EV	29	RUNTIME=300
afbbd646 EV	30	ETA=0
60238f0e	31	MODES="write,randwrite,read,randread"
afbbd646	32	SHORT_HOSTNAME=
76c7c63e	33	CACHED_IO="FALSE"
a7419837 EV	34	PREFIX=""
a7419837 EV	35	PREFIX_FILENAME=""
7d1ca6cf	36	IODEPTH=1
afbbd646 EV	37
	38	show_help() {
	39	PROG=$(basename $0)
	40	echo "usage of $PROG:"
	41	cat << EOF
	42	-h : Show this help & exit
76c7c63e	43	-c : Enable cached-based IOs
e1c6f2e1	44	Disabled by default
afbbd646	45	-a : Run sequential test then parallel one
e1c6f2e1	46	Disabled by default
afbbd646 EV	47	-s : Run sequential test (default value)
afbbd646 EV	48	one test after another then one disk after another
e1c6f2e1	49	Disabled by default
afbbd646 EV	50	-p : Run parallel test
afbbd646 EV	51	one test after anoter but all disks at the same time
e1c6f2e1	52	Enabled by default
7d1ca6cf	53	-D iodepth : Run with the specified iodepth
80139d2d	54	Default is $IODEPTH
afbbd646 EV	55	-d disk1[,disk2,disk3,..] : Run the tests on the selected disks
afbbd646 EV	56	Separated each disk with a comma
f6facd21 LM	57	-z filesize : Specify the working file size, if you are passing filepaths to -d
f6facd21 LM	58	Disabled by default
e1c6f2e1	59	-r seconds : Time in seconds per benchmark
72fe3ef1	60	0 means till the end of the device
80139d2d	61	Default is $RUNTIME seconds
afbbd646 EV	62	-b blocksize[,blocksize1, ...] : The blocksizes to test under fio format (4k, 1m, ...)
afbbd646 EV	63	Separated each blocksize with a comma
80139d2d	64	Default is $BLOCK_SIZE
afbbd646	65	-m mode1,[mode2,mode3, ...] : Define the fio IO profile to use like read, write, randread, randwrite
80139d2d	66	Default is "$MODES"
a7419837 EV	67	-x prefix : Add a prefix to the fio filename
	68	Useful to let a context associated with the file
	69	If the prefix features a / (slash), prefix will be considered as a directory
ca143750 EV	70	-A cmd_to_run : System command to run after each job (exec_postrun in fio)
ca143750 EV	71	-B cmd_to_run : System command to run before each job (exec_prerun in fio)
afbbd646 EV	72
	73	Example:
	74
bed59bab	75	$PROG -d /dev/sdb,/dev/sdc,/dev/sdd,/dev/sde -a -b 4k,128k,1m -r 100 -a -x dellr720-day2/
afbbd646 EV	76
afbbd646 EV	77	Will generate an fio file that will run
60238f0e	78	- a sequential bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 4k with write,randwrite,read,randread tests
afbbd646	79	ETA ~ 4 tests * 4 disks * 100 seconds
60238f0e	80	- a sequential bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 128k with write,randwrite,read,randread tests
afbbd646	81	ETA ~ 4 tests * 4 disks * 100 seconds
60238f0e	82	- a sequential bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 1m with write,randwrite,read,randread tests
afbbd646	83	ETA ~ 4 tests * 4 disks * 100 seconds
60238f0e	84	- a parallel bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 4k with write,randwrite,read,randread tests
afbbd646	85	ETA ~ 4 tests * 100 seconds
60238f0e	86	- a parallel bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 128k with write,randwrite,read,randread tests
afbbd646	87	ETA ~ 4 tests * 100 seconds
60238f0e	88	- a parallel bench on /dev/sdb /dev/sdc /dev/sdd /dev/sde for block size = 1m with write,randwrite,read,randread tests
afbbd646 EV	89	ETA ~ 4 tests * 100 seconds
afbbd646 EV	90
60238f0e	91	Generating dellr720-day2/localhost-4k,128k,1m-all-write,randwrite,read,randread-sdb,sdc,sdd,sde.fio
afbbd646 EV	92	Estimated Time = 6000 seconds : 1 hour 40 minutes
	93	EOF
	94	}
	95
fdc0f3b6	96	finish_template() {
ea0542d9	97	echo "iodepth=$IODEPTH" >> $TEMPLATE
afbbd646	98
72fe3ef1	99	if [ "$RUNTIME" != "0" ]; then
ea0542d9 EV	100	echo "runtime=$RUNTIME" >> $TEMPLATE
ea0542d9 EV	101	echo "time_based" >> $TEMPLATE
72fe3ef1 EV	102	fi
72fe3ef1 EV	103
76c7c63e	104	if [ "$CACHED_IO" = "FALSE" ]; then
ea0542d9	105	echo "direct=1" >> $TEMPLATE
76c7c63e	106	fi
fdc0f3b6	107	}
76c7c63e	108
bed59bab EV	109
	110	diskname_to_printable() {
	111	COUNT=0
	112	for disk in $(echo $@ \| tr "," " "); do
	113	R=$(basename $disk \| sed 's\|/\|_\|g')
	114	COUNT=$(($COUNT + 1))
	115	if [ $COUNT -eq 1 ]; then
	116	P="$R"
	117	else
	118	P="$P,$R"
	119	fi
	120	done
	121	echo $P
	122	}
	123
fdc0f3b6 EV	124	gen_template() {
	125	cat >$TEMPLATE << EOF
	126	[global]
	127	ioengine=libaio
	128	invalidate=1
	129	ramp_time=5
	130	EOF
afbbd646 EV	131	}
	132
	133	gen_seq_suite() {
	134	TYPE=$1
bed59bab EV	135	disk=$2
bed59bab EV	136	PRINTABLE_DISK=$(diskname_to_printable $disk)
afbbd646	137	cat >> $OUTFILE << EOF
bed59bab	138	[$TYPE-$PRINTABLE_DISK-$BLK_SIZE-seq]
afbbd646 EV	139	stonewall
afbbd646 EV	140	bs=$BLK_SIZE
bed59bab	141	filename=$disk
afbbd646	142	rw=$TYPE
bed59bab EV	143	write_bw_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-seq.results
bed59bab EV	144	write_iops_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-seq.results
afbbd646 EV	145	EOF
	146	ETA=$(($ETA + $RUNTIME))
	147	}
	148
	149	gen_seq_fio() {
	150	for disk in $(echo $DISKS \| tr "," " "); do
	151	for mode in $(echo $MODES \| tr "," " "); do
bed59bab	152	gen_seq_suite "$mode" "$disk"
afbbd646 EV	153	done
	154	done
	155	}
	156
	157
	158	gen_para_suite() {
	159	TYPE=$1
	160	NEED_WALL=$2
	161	D=0
	162	for disk in $(echo $DISKS \| tr "," " "); do
bed59bab	163	PRINTABLE_DISK=$(diskname_to_printable $disk)
afbbd646	164	cat >> $OUTFILE << EOF
bed59bab	165	[$TYPE-$PRINTABLE_DISK-$BLK_SIZE-para]
afbbd646 EV	166	bs=$BLK_SIZE
	167	EOF
	168
	169	if [ "$D" = 0 ]; then
	170	echo "stonewall" >> $OUTFILE
	171	D=1
	172	fi
	173
	174	cat >> $OUTFILE << EOF
bed59bab	175	filename=$disk
afbbd646	176	rw=$TYPE
bed59bab EV	177	write_bw_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-para.results
bed59bab EV	178	write_iops_log=${PREFIX_FILENAME}$SHORT_HOSTNAME-$BLK_SIZE-$PRINTABLE_DISK-$TYPE-para.results
afbbd646 EV	179	EOF
	180	done
	181
	182	ETA=$(($ETA + $RUNTIME))
	183	echo >> $OUTFILE
	184	}
	185
	186	gen_para_fio() {
	187	for mode in $(echo $MODES \| tr "," " "); do
	188	gen_para_suite "$mode"
	189	done
	190	}
	191
	192	gen_fio() {
	193	case $SEQ in
	194	2)
	195	gen_seq_fio
	196	gen_para_fio
	197	;;
	198	1)
	199	gen_seq_fio
	200	;;
	201	0)
	202	gen_para_fio
	203	;;
	204	esac
	205	}
	206
	207	parse_cmdline() {
f6facd21	208	while getopts "hacpsd:b:r:m:x:z:D:A:B:" opt; do
afbbd646 EV	209	case $opt in
	210	h)
	211	show_help
	212	exit 0
	213	;;
	214	b)
	215	BLOCK_SIZE=$OPTARG
	216	;;
76c7c63e EV	217	c)
	218	CACHED_IO="TRUE"
	219	;;
afbbd646 EV	220	s)
	221	if [ "$SEQ" = "-1" ]; then
	222	SEQ=1
	223	fi
	224	;;
a7419837 EV	225	x)
	226	PREFIX=$OPTARG
	227	echo "$PREFIX" \| grep -q "/"
	228	if [ "$?" -eq 0 ]; then
	229	mkdir -p $PREFIX
	230	# No need to keep the prefix for the log files
	231	# we do have a directory for that
	232	PREFIX_FILENAME=""
	233	else
	234	# We need to keep the prefix for the log files
	235	PREFIX_FILENAME=$PREFIX
	236	fi
	237	;;
afbbd646 EV	238	r)
	239	RUNTIME=$OPTARG
	240	;;
	241	p)
	242	if [ "$SEQ" = "-1" ]; then
	243	SEQ=0
	244	fi
	245	;;
	246	m)
	247	MODES=$OPTARG;
	248	;;
	249	d)
	250	DISKS=$OPTARG
bed59bab	251	PRINTABLE_DISKS=$(diskname_to_printable "$DISKS")
afbbd646	252	;;
7d1ca6cf EV	253	D)
	254	IODEPTH=$OPTARG
	255	;;
afbbd646 EV	256	a)
	257	SEQ=2
	258	;;
ca143750 EV	259	B)
	260	echo "exec_prerun=$OPTARG" >> $TEMPLATE
	261	;;
	262	A)
	263	echo "exec_postrun=$OPTARG" >> $TEMPLATE
	264	;;
f6facd21 LM	265	z)
	266	FSIZE=$OPTARG
	267	echo "size=$FSIZE" >> $TEMPLATE
	268	;;
afbbd646 EV	269	\?)
	270	echo "Invalid option: -$OPTARG" >&2
	271	;;
	272	esac
	273	done
	274
	275	if [ "$SEQ" = "-1" ]; then
	276	SEQ=0
	277	fi
	278
	279	SHORT_HOSTNAME=$(hostname -s)
	280	case $SEQ in
	281	2)
bed59bab	282	OUTFILE=${PREFIX}$SHORT_HOSTNAME-$BLOCK_SIZE-all-$MODES-$PRINTABLE_DISKS.fio
afbbd646 EV	283	;;
	284
	285	1)
bed59bab	286	OUTFILE=${PREFIX}$SHORT_HOSTNAME-$BLOCK_SIZE-sequential-$MODES-$PRINTABLE_DISKS.fio
afbbd646 EV	287	;;
afbbd646 EV	288	0)
bed59bab	289	OUTFILE=${PREFIX}$SHORT_HOSTNAME-$BLOCK_SIZE-parallel-$MODES-$PRINTABLE_DISKS.fio
afbbd646 EV	290	;;
	291	esac
	292
	293	if [ -z "$DISKS" ]; then
	294	echo "Missing DISKS !"
e1c6f2e1 EV	295	echo "Please read the help !"
e1c6f2e1 EV	296	show_help
afbbd646 EV	297	exit 1
	298	fi
	299
	300	}
	301
60238f0e EV	302	check_mode_order() {
	303	FOUND_WRITE="NO"
	304	CAUSE="You are reading data before writing them "
	305
	306	# If no write occurs, let's show a different message
	307	echo $MODES \| grep -q "write"
	308	if [ "$?" -ne 0 ]; then
	309	CAUSE="You are reading data while never wrote them before"
	310	fi
	311
	312	for mode in $(echo $MODES \| tr "," " "); do
	313	echo $mode \| grep -q write
	314	if [ "$?" -eq 0 ]; then
	315	FOUND_WRITE="YES"
	316	fi
	317	echo $mode \| grep -q "read"
	318	if [ "$?" -eq 0 ]; then
	319	if [ "$FOUND_WRITE" = "NO" ]; then
	320	echo "###############################################################"
	321	echo "# Warning : $CAUSE#"
	322	echo "# On some storage devices, this could lead to invalid results #"
	323	echo "# #"
	324	echo "# Press Ctrl-C to adjust pattern order if you have doubts #"
	325	echo "# Or Wait 5 seconds before the file will be created #"
	326	echo "###############################################################"
	327	sleep 5
	328	# No need to try showing the message more than one time
	329	return
	330	fi
	331	fi
	332	done
	333	}
	334
afbbd646 EV	335
afbbd646 EV	336	########## MAIN
fdc0f3b6	337	gen_template
3b73c537	338	parse_cmdline "$@"
fdc0f3b6	339	finish_template
60238f0e	340	check_mode_order
afbbd646 EV	341
	342	echo "Generating $OUTFILE"
	343	cp -f $TEMPLATE $OUTFILE
	344	echo >> $OUTFILE
	345
	346	for BLK_SIZE in $(echo $BLOCK_SIZE \| tr "," " "); do
	347	gen_fio
	348	done
	349	ETA_H=$(($ETA / 3600))
	350	ETA_M=$((($ETA - ($ETA_H*3600)) / 60))
af360e39	351	if [ "$ETA" = "0" ]; then
72fe3ef1 EV	352	echo "Cannot estimate ETA as RUNTIME=0"
	353	else
	354	echo "Estimated Time = $ETA seconds : $ETA_H hour $ETA_M minutes"
	355	fi