######################################################################
# customize per survey
-# specify obd names (host:name if remote)
-# these can either be the echo_client names (client_names)
-# or the ost names (ost_names)
+# specify obd instances to exercise
+# these can be either...
+# obdfilter instances (set 'ost_names')
+# ...or...
+# echo_client instances (set 'client_names')
+# ... use 'host:name' for obd instances on other nodes.
+ost_names=(ost{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16})
#client_names=(ns8:ECHO_ns8 ns9:ECHO_ns9)
-ost_names=(ns9:ost{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16})
# result file prefix (date/time + hostname makes unique)
+# NB ensure path to it exists
rslt=/home_nfs/eeb/obdfilter_survey_`date +%F@%R`_`uname -n`
# lustre root (if running with own source tree)
lustre_root=/home_nfs/eeb/lustre
-# what to do (we always do an initial write)
-#tests="rewrite read reread rewrite_again"
-tests="rewrite read"
+# what tests to run (first must be write)
+#tests=(write rewrite read reread rewrite_again)
+tests=(write rewrite read)
-# total size (MBytes) per OST
+# total size (MBytes) per obd instance
# large enough to avoid cache effects
# and to make test startup/shutdown overhead insignificant
-size=8192
+size=16384
# record size (KBytes)
rszlo=1024
restart_thr=1
restart_nobj=1
-# machine's page size
+# machine's page size (K)
PAGE_SIZE=64
# max buffer_mem (total_threads * buffer size)
max_buffer_mem=$((1024*1024))
# how to run commands on other nodes
+# You need to make this work on your cluster if you have specified
+# non-local obd instances above
custom_remote_shell () {
host=$1
shift
# commands. One of the following will probably work.
ssh $host "cd $here; $cmds"
#rsh $host "cd $here; $cmds"
- #pdsh -w $host "cd $here; $cmds"
+ # we have to remove the leading `uname -n`: from pdsh output lines
+ #pdsh -w $host "cd $here; $cmds" | sed 's/^[^:]*://'
}
#####################################################################
# leave the rest of this alone unless you know what you're doing...
+# binaries
+lsmod="/sbin/lsmod"
+modprobe="/sbin/modprobe"
+insmod="/sbin/insmod"
+rmmod="/sbin/rmmod"
+
+# lctl::test_brw bandwidth snapshot interval (seconds)
snap=1
+# check file contents?
verify=1
+if [ ${#tests[@]} -eq 0 -o "${tests[0]}" != "write" ]; then
+ echo "First test must be 'write'" 1>&2
+ exit 1
+fi
+
rsltf="${rslt}.summary"
workf="${rslt}.detail"
+cmdsf="${rslt}.script"
echo -n > $rsltf
echo -n > $workf
fi
}
-check_obdecho() {
+obdecho_loaded() {
local host=$1
- remote_shell $host lsmod | grep obdecho > /dev/null 2>&1
+ remote_shell $host $lsmod | grep obdecho > /dev/null 2>&1
}
load_obdecho () {
local host=$1
if [ -z "$lustre_root" ]; then
- remote_shell $host modprobe obdecho
+ remote_shell $host $modprobe obdecho
elif [ -f ${lustre_root}/obdecho/obdecho.ko ]; then
- remote_shell $host insmod ${lustre_root}/obdecho/obdecho.ko
+ remote_shell $host $insmod ${lustre_root}/obdecho/obdecho.ko
else
- remote_shell $host insmod ${lustre_root}/obdecho/obdecho.o
+ remote_shell $host $insmod ${lustre_root}/obdecho/obdecho.o
fi
}
unload_obdecho () {
local host=$1
- remote_shell $host rmmod obdecho
+ remote_shell $host $rmmod obdecho
}
get_devno () {
}
split_hostname () {
- name=$1
+ local name=$1
case $name in
*:*) host=`echo $name | sed 's/:.*$//'`
name=`echo $name | sed 's/[^:]*://'`
echo "$host $name"
}
+# split out hostnames from client/ost names
ndevs=${#client_names[@]}
if ((ndevs != 0)); then
if ((${#ost_names[@]} != 0)); then
done
fi
+# disable portals debug and get obdecho loaded on all relevant hosts
unique_hosts=(`unique ${host_names[@]}`)
-
for host in ${unique_hosts[@]}; do
remote_shell $host "echo 0 > /proc/sys/portals/debug"
do_unload_obdecho[$host]=0
- if check_obdecho $host; then
+ if obdecho_loaded $host; then
continue
fi
load_obdecho $host
- if check_obdecho $host; then
- do_unload_obdecho[$host]=0
+ if obdecho_loaded $host; then
+ do_unload_obdecho[$host]=1
continue
fi
echo "Can't load obdecho on $host" 1>&2
exit 1
done
+# get all the echo_client device numbers and names
for ((i=0; i<ndevs; i++)); do
host=${host_names[$i]}
devno=(`get_ec_devno $host "${client_names[$i]}" "${ost_names[$i]}"`)
fi
first_objs[$idx]=$first_obj
done
- for test in write $tests; do
+ # run tests
+ for test in ${tests[@]}; do
print_summary -n "$test "
+ # create per-host script files
for host in ${unique_hosts[@]}; do
- echo -n > ${workf}_${host}_script
+ echo -n > ${cmdsf}_${host}
done
for ((idx=0; idx < ndevs; idx++)); do
host=${host_names[$idx]}
devno=${devnos[$idx]}
tmpfi="${tmpf}_$idx"
first_obj=${first_objs[$idx]}
- echo >> ${workf}_${host}_script \
+ echo >> ${cmdsf}_${host} \
"$lctl > $tmpfi 2>&1 \\
--threads $thr -$snap $devno \\
test_brw $count `testname2type $test` q $pages ${thr}t${first_obj} &"
done
for host in ${unique_hosts[@]}; do
- echo "wait" >> ${workf}_${host}_script
+ echo "wait" >> ${cmdsf}_${host}
done
+ # timed run of all the per-host script files
t0=`date +%s.%N`
for host in ${unique_hosts[@]}; do
- remote_shell $host bash ${workf}_${host}_script&
+ remote_shell $host bash ${cmdsf}_${host}&
done
wait
t1=`date +%s.%N`
+ # clean up per-host script files
for host in ${unique_hosts[@]}; do
- rm ${workf}_${host}_script
+ rm ${cmdsf}_${host}
done
+ # compute bandwidth from total data / elapsed time
str=`awk "BEGIN {printf \"%7.2f \",\
$total_size / (( $t1 - $t0 ) * 1024)}"`
print_summary -n "$str"
+ # collect/check individual OST stats
echo -n > $tmpf
for ((idx=0; idx < ndevs; idx++)); do
client_name="${host_names[$idx]}:${client_names[$idx]}"
get_stats $tmpfi >> $tmpf
rm $tmpfi
done
+ # compute/display global min/max stats
echo "=============> $test global" >> $workf
cat $tmpf >> $workf
stats=(`get_global_stats $tmpf`)
rm $tmpf
if ((stats[0] <= 0)); then
if ((stats[0] < 0)); then
- str=`printf "%15s " ERROR`
+ str=`printf "%17s " ERROR`
else
- str=`printf "%15s " SHORT`
+ str=`printf "%17s " SHORT`
fi
else
str=`awk "BEGIN {printf \"[%7.2f,%7.2f] \",\
print_summary -n "$str"
done
print_summary ""
+ # destroy objects we created
for ((idx=0; idx < ndevs; idx++)); do
host=${host_names[$idx]}
devno=${devnos[$idx]}
done
done
+# tear down any echo clients we created
for ((i=0; i<ndevs; i++)); do
host=${host_names[$i]}
if ((${do_teardown_ec[$i]})); then
fi
done
+# unload any obdecho modules we loaded
for host in ${unique_hosts[@]}; do
if ((${do_unload_obdecho[$host]})); then
unload_obdecho $host
git://git.whamcloud.com / fs / lustre-release.git / blobdiff