Richard Crane wrote:
>
> Can someone give an annotated example of the arguments to bonnie++ ?
>
I use the follwing script to generate some I/O-load on the raid device.
Don't comment on the style of the script :-)
#!/bin/sh
# for parameters see bonnie options:
# [-d scratch-dir] [-s size(Mb)[:chunk-size(b)]]
# [-n number-to-stat[:max-size[:min-size][:num-directories]]]
# [-m machine-name]
# [-r ram-size-in-Mb]
# [-x number-of-tests] [-u uid-to-use:gid-to-use] [-g gid-to-use]
# [-q] [-f] [-b] [-p processes | -y]
MACHINE="www-neu"
RAM="320"
DIR="/mnt"
USER="nobody"
#S="0"
#S="100"
S_1="1024"
S_2="768"
S_3="1024"
S_4="768"
S_5="2047"
#N="1:4096:512:1"
N_1="100:4096:512:1"
N_2="1:10240:4096:5"
N_3="1:6553600:1638400:1"
N_4="1:4096:512:10"
N_5="1:8192:4096:10"
#N="0"
P="5"
#P="1"
X="20000"
SYNC="no"
###########################
# nothing to config below #
###########################
if [ "$SYNC" = "yes" ]; then
B="-b"
else
B=""
fi
if [ $P -gt 1 ]; then
Y="-y"
# create semaphore
#bonnie++ -d $DIR -u $USER -s $S -n $N -m "$MACHINE" -r $RAM $B -x $X -p $P
bonnie++ -d $DIR -u $USER -p $P
fi
# clean up
echo -n cleaning up...
killall -q -KILL bonnie++
rm -f out-*-{1,2}
rm -fvR $DIR/Bonnie*
echo done.
# start real processes
I=1; while [ $I -le $P ]; do
echo spanning subprocess nr. $I
eval P_S=\$S_$I
eval P_N=\$N_$I
[ -n "$P_S" ] && S=$P_S
[ -n "$P_N" ] && N=$P_N
bonnie++ -d $DIR -u $USER -s $S -n $N -m "$MACHINE" -r $RAM $B -x $X $Y >
out-$I-1 2> out-$I-2 &
I=`expr $I + 1`
done
MfG / Regards
Friedrich Lobenstock
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