/usr/bin/ior-survey is in lustre-utils 1.8.5+dfsg-3ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 | #!/bin/bash
# the value of these can be set in the environment.
# This test assumes a typical pdsh naming scheme, where
# node names can be expressed as a string
# forllowed by a number
# cluster name (all node names are this followed by the node number)
cluster=${cluster:-""}
if [ -z "$cluster" ];then echo "cluster not defined"; exit 1; fi
# client node numbers (individual numbers or inclusive ranges)
clients=${clients:-""}
if [ -z "$clients" ]; then echo "clients not defined"; exit 1; fi
# numbers of clients to survey
clients_lo=${clients_lo:-1}
clients_hi=${clients_hi:-3}
clients_iterator=${clients_iterator:-"+=1"}
# numbers of tasks per client to survey
tasks_per_client_lo=${task_per_client_lo:-1}
tasks_per_client_hi=${tasks_per_client_hi:-8}
tasks_per_client_iterator=${tasks_per_client_iterator:-"*=2"}
# record sizes to survey
rsize_lo=${rsize_lo:-1M}
rsize_hi=${rsize_hi:-1M}
rsize_iterator=${rsize_iterator:-"*=2"}
## which tests to run (first must be write)
# clear_cache) not really a test; just uncache everything
# *write*) write
# *) read
tests=(write rewrite clear_cache read reread)
# total # bytes written/read by any client node
min_per_client_size=${min_per_client_size:-"1G"}
min_total_size=${min_total_size:-"2G"}
# should each task do I/O to its own file?
file_per_task=${file_per_task:-1}
# the binaries
IOR=${IOR:-"/usr/local/sbin/IOR"}
llmount=${llmount:-"llmount"}
# Select mpirun, yod, or pdsh
fanout_cmd=${fanout_cmd:-"pdsh"}
# mpirun still uses pdsh for cleanup
pdsh=${pdsh:-"pdsh"}
pdsh_args="-R ssh -S -b -w "
# the result file prefix (date/time + hostname makes unique)
rslt_loc=${rslt_loc:-"/tmp"}
rslt=${rslt:-"$rslt_loc/ior_survey_`date +%F@%R`_`uname -n`"}
# where lustre is mounted on the clients
lustre=${lustre:-"/mnt/lustre"}
# basename of the test file(s)
testfile=${testfile:-"${lustre}/ior/ior_survey_testfile"}
#don't spin for MPI completions
export LIBELAN_WAITTYPE=0
################################################################################
# dont change stuff below here unless you know what you're doing...
# This is to allow use of yod, pdsh, etc.
fanout() {
local clients=$1; shift
local tmpfile=$1; shift
local result
case $fanout_cmd in
'pdsh')
$fanout_cmd $pdsh_args "$clients" "$@" >> $tmpfile 2>&1
echo $?
return
;;
'mpirun')
# horrible misuse of globals
$fanout_cmd -np $((ntask*nclnt)) "$@" >> $tmpfile 2>&1
echo $?
return
;;
'yod')
# and another
$fanout_cmd -np $((ntask*nclnt)) "$@" >> $tmpfile 2>&1
echo $?
return
;;
*)
echo "255"
return
;;
esac
}
dump_cache() {
# we are assuming mpi uses will also have pdsh
local clients=$1;shift
local tmpfile=$1;shift
clear_cache='for LRU in /proc/fs/lustre/ldlm/namespaces/*/lru_size;
do sudo /bin/bash -c "echo clear > $LRU"; done'
echo "=> $clear_cache" >> $tmpfile
$pdsh $pdsh_args "$test_clients" "$clear_cache" >> $tmpfile 2>&1
status=$?
echo "Completion Status: $status" >> $tmpfile
if ((status)); then
echo "ERROR"
else
echo "OK"
fi
}
count_range() {
echo $1 | awk '{ nvals=split($1, vals, "-");\
if (nvals == 1) print 1;\
else if (nvals == 2) printf "%d\n", vals[2] - vals[1] + 1;}'
}
base_range() {
echo $1 | awk '{ split($1, vals, "-"); print vals[1]; }'
}
idx2nodenum() {
local n=$1; shift
while ((1)); do
local range=$1; shift
if [ -z "$range" ]; then
return
fi
chunk=`count_range $range`
if ((chunk > $n)); then
base=`base_range $range`
echo $((base + n))
return
fi
n=$((n-chunk))
done
}
n2noderange() {
local n=$1; shift
sep=""
nodes="["
while ((n > 0)); do
local range=$1; shift
if [ -z "$range" ]; then
return
fi
local base=`base_range $range`
local chunk=`count_range $range`
if ((chunk > $n)); then chunk=$n; fi
local nodes="${nodes}${sep}${base}"; sep=","
if ((chunk > 1)); then nodes="${nodes}-$((base+chunk-1))"; fi
n=$((n-chunk))
done
echo "${nodes}]"
}
countnodes() {
local radix=16384
local n=0
while ((radix > 0)); do
local nodes=`n2noderange $((n+radix)) $@`
if [ -n "$nodes" ]; then
n=$((n+radix))
fi
radix=$((radix/2))
done
echo $n
}
parse_number() {
local str=$1
case $str in
*G|*g) n=`echo $str | sed 's/[gG]//'`; echo $((n*1024*1024*1024));;
*M|*m) n=`echo $str | sed 's/[Mm]//'`; echo $((n*1024*1024));;
*K|*k) n=`echo $str | sed 's/[Kk]//'`; echo $((n*1024));;
*) echo $1;;
esac
}
pp_number() {
local n=$1
local G=$((1024*1024*1024))
local M=$((1024*1024))
local K=$((1024))
if ((n%G == 0 && n >= $G)); then
echo "$((n/G))G"
elif ((n%M == 0 && n >= $M)); then
echo "$((n/M))M"
elif ((n%K == 0 && n >= $K)); then
echo "$((n/K))K"
else
echo $n
fi
}
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"
echo -n > $rsltf
echo -n > $workf
print_summary () {
if [ "$1" = "-n" ]; then
minusn=$1; shift
else
minusn=""
fi
echo $minusn "$*" >> $rsltf
echo $minusn "$*"
}
check_mount() {
local lustre=$1; shift
local tmpb=$1; shift
local clients=$1; shift
local tmpfile=${tmpb}_tmp
# check lustre is mounted everywhere it's needed
cmd="grep $lustre /proc/mounts"
$pdsh $pdsh_args "$clients" "$cmd" >> $tmpfile
status=$?
if (($status)); then
print_summary "Lustre NOT mounted on $lustre somewhere"
exit 1
fi
}
# convert params to actual numbers
min_per_client_size=`parse_number $min_per_client_size`
min_total_size=`parse_number $min_total_size`
rsize_lo=`parse_number $rsize_lo`
rsize_hi=`parse_number $rsize_hi`
# check on actual numbers of client nodes
nclients=`countnodes ${clients[@]}`
if ((clients_hi > $nclients)); then clients_hi=$nclients; fi
cur_date=`date`
machine=`uname -n`
script_name=`echo $0 | cut -d "/" -f2`
echo "$cur_date $script_name on $lustre from $machine" >> $workf
for ((rsize=$rsize_lo; rsize<=$rsize_hi; rsize$rsize_iterator)); do
pp_rsize=`pp_number $rsize`
for ((nclnt=$clients_lo; nclnt<=$clients_hi; nclnt$clients_iterator)); do
test_clients="${cluster}`n2noderange $nclnt ${clients[@]}`"
echo $test_clients
if [ "$fanout_cmd" = "pdsh" ] || [ "$fanout_cmd" = "mpirun" ];then
check_mount $lustre $workf $test_clients
fi
per_client_size=$((min_total_size/nclnt))
if ((per_client_size < $min_per_client_size)); then
per_client_size=$min_per_client_size
fi
for ((ntask=$tasks_per_client_lo; ntask <= $tasks_per_client_hi; \
ntask$tasks_per_client_iterator)); do
per_task_size=$((per_client_size/ntask))
if ((per_task_size%rsize != 0)); then
per_task_size=$(((per_task_size/rsize + 1)*rsize))
fi
total_size=`pp_number $((per_task_size*nclnt*ntask))`
hdrstr=`printf "Total: %5sB rsize: %4sB clients: %4d tasks: %3d: " \
$total_size $pp_rsize $nclnt $ntask`
print_summary -n "$hdrstr"
for ((test_idx=0; test_idx < ${#tests[@]}; test_idx++)); do
test=${tests[$test_idx]}
print_summary -n "$test "
echo "===========> ${hdrstr} on $test_clients doing $test" >> $workf
tmpf=${workf}_tmp
echo -n > $tmpf
if [ "$test" = "clear_cache" ]; then
if [ "$fanout_cmd" = "pdsh" ] || [ "$fanout_cmd" = "mpirun" ]; then
result=`dump_cache $test_clients $tmpf`
else
echo "Haven't figured out how to clear cache" >> $tmpf
result="N/A"
fi
else
cmdline=(
$IOR # the command
-o${testfile} # test file prefix
-b${per_task_size} # bytes per task
-t${rsize} # record size
-e # fsync before close
-q # quit on error
)
idx=${#cmdline[@]}
# keep the test file(s) unless this is the last test
#((test_idx < ${#tests[@]}-1)) && cmdline[$((idx++))]="-k"
cmdline[$((idx++))]="-k"
# use the existing test file(s) unless this is the first test
((test_idx > 0)) && cmdline[$((idx++))]="-E"
# file-per-task
(($file_per_task)) && cmdline[$((idx++))]="-F"
case "$test" in
*write*) cmdline[$((idx++))]="-w"
awkstr="Max Write";;
*) cmdline[$((idx++))]="-r"
awkstr="Max Read";;
esac
echo "=> ${cmdline[@]}" >> $tmpf
status=`fanout $test_clients $tmpf ${cmdline[@]}`
echo "Completion Status: $status" >> $tmpf
if (($status)); then
result="ERROR"
else
# pdsh adds an extra field
if [ "$fanout_cmd" = "pdsh" ]; then
result=`awk < $tmpf "/$awkstr/ {print $ 4; found=1; exit}\
END {if (!found) print \"ERROR\"}"`
else
result=`awk < $tmpf "/$awkstr/ {print $ 3; found=1; exit}\
END {if (!found) print \"ERROR\"}"`
fi
fi
fi
cat $tmpf >> $workf
rm $tmpf
str=`printf "%8s" "$result"`
print_summary -n "$str "
done
print_summary ""
done
done
done
|