######################################################################
# 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
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
#####################################################################
# 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="${rslt}.summary"
-cmdsf="${rslt}.script"
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
}
local nobj=$3
local rfile=$4
remote_shell $host $lctl --device $devno create $nobj > $rfile 2>&1
- n=(`awk < $rfile \
- '/is object id/ {obj=strtonum($6);\
- first=!not_first; not_first=1;\
- if (first) first_obj=obj;
- else if (obj != prev + 1) exit;\
- prev=obj; n++}\
- END {printf "%d %d\n", first_obj, n}'`)
- if ((n[1] != nobj)); then
- echo "ERROR"
- else
- echo ${n[0]}
+ first=0
+ prev=0
+ count=0
+ error=0
+ while read line; do
+ echo "$line" | grep -q 'is object id'
+ if [ $? -ne 0 ]; then
+ continue
+ fi
+ if [ $first -eq 0 ]; then
+ first=$(echo $line | awk '{print $6}')
+ first=$(printf "%d" $first)
+ prev=$first
+ count=1
+ else
+ obj=$(echo $line | awk '{print $6}')
+ obj=$(printf "%d" $obj)
+ diff=$((obj - (prev+1)))
+ if [ $diff -ne 0 ]; then
+ error=1
+ fi
+ prev=$obj
+ count=$((count+1))
+ fi
+ done < $rfile
+ if [ $nobj -ne $count ]; then
+ echo "ERROR: $nobj != $count" >&2
+ cat $rfile >&2
+ echo "ERROR"
+ elif [ $error -ne 0 ]; then
+ echo "ERROR: non contiguous objs found" >&2
+ echo "ERROR"
+ else
+ echo $first
fi
}
}
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
+ if obdecho_loaded $host; then
do_unload_obdecho[$host]=1
continue
fi
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 > ${cmdsf}_${host}
done
for host in ${unique_hosts[@]}; do
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 ${cmdsf}_${host}&
done
wait
t1=`date +%s.%N`
+ # clean up per-host script files
for host in ${unique_hosts[@]}; do
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 $tmpf`)
print_summary -n "$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