lustre-iokit/obdfilter-survey/obdfilter-survey

   1 #!/bin/bash
   2 ######################################################################
   3 # customize per survey
   4
   5 # specify obd instances to exercise
   6 # these can be either...
   7 # obdfilter instances (set 'ost_names')
   8 # ...or...
   9 # echo_client instances (set 'client_names')
  10 # ... use 'host:name' for obd instances on other nodes.
  11 # allow these to be passed in via string...
  12 # OR
  13 # one can specify only case=disk or case=network or case=netdisk through
  14 # command line.
  15
  16 # Prerequisite: For "disk" case and "netdisk" case you need to have lustre setup
  17 #             with one or more ost's. For "network" case  you need to have all
  18 #             modules (those llmount.sh loades) loaded in kernel. And the
  19 #             'lctl dl' output must be blank.
  20
  21 # How to run test:
  22 # case 1 (local disk):
  23 #   $ nobjhi=2 thrhi=2 size=1024 case=disk sh obdfilter-survey
  24 #   one can also run test with user defined targets as follows,
  25 #   $ nobjhi=2 thrhi=2 size=1024 targets="lustre-OST0000 lustre-OST0001 ..." sh obdfilter-survey
  26 # case 2 (network):
  27 #   $ nobjhi=2 thrhi=2 size=1024 targets="<name/ip_of_server>" case=network sh obdfilter-survey
  28 #   where, targets is name or ip address of system, which you want to
  29 #   set as server.
  30 # case 3 (network and disk):
  31 #   $ nobjhi=2 thrhi=2 size=1024 case=netdisk sh obdfilter-survey
  32 #   one can also run test with user defined targets as follows,
  33 #   $ nobjhi=2 thrhi=2 size=1024 targets="<osc_name> ..." sh obdfilter-survey
  34 #[ NOTE: It is advised to have automated login (passwordless entry) between server and
  35 #  client systems on which this test runs.]
  36
  37 # include library
  38 source $(dirname $0)/iokit-libecho
  39
  40 # The following variables can be set in the environment, or on the
  41 # command line
  42 # result file prefix (date/time + hostname makes unique)
  43 # NB ensure path to it exists
  44 rslt_loc=${rslt_loc:-"/tmp"}
  45 rslt=${rslt:-"$rslt_loc/obdfilter_survey_$(date +%F@%R)_$(uname -n)"}
  46
  47 # Set this true to check file contents
  48 verify=${verify:-0}
  49
  50 # test targets
  51 targets=${targets:-""}
  52 # test case
  53 case=${case:-"disk"}
  54
  55 # total size (MBytes) per obd instance
  56 # large enough to avoid cache effects
  57 # and to make test startup/shutdown overhead insignificant
  58 size=${size:-16384}
  59
  60 # record size (KBytes) ( 7168 max)
  61 rszlo=${rszlo:-1024}
  62 rszhi=${rszhi:-1024}
  63 rszmax=${rszmax:-4096}
  64
  65 # number of objects per OST
  66 nobjlo=${nobjlo:-1}
  67 #was nobjhi=${nobjhi:-512}
  68 nobjhi=${nobjhi:-16}
  69
  70 # threads per OST (1024 max)
  71 thrlo=${thrlo:-1}
  72 thrhi=${thrhi:-16}
  73
  74 export LC_ALL=POSIX
  75
  76 # End of variables
  77
  78 # create a set of objects, check there are 'n' contiguous ones and
  79 # echo out the first or 'ERROR'
  80 # parameter: 1. hostname
  81 #            2. device number
  82 #            3. number of object to be created (specified by user)
  83 #            4. tempfile name
  84 create_objects () {
  85         local host=$1
  86         local devno=$2
  87         local nobj=$3
  88         local rfile=$4
  89
  90         remote_shell $host $lctl --device $devno create $nobj > $rfile 2>&1
  91         first=0
  92         prev=0
  93         count=0
  94         error=0
  95
  96         # Count number of objects (lines containing " is object id "), and
  97         # ensure that the objects numbers are sequential.
  98         #
  99         exec 3< $rfile
 100         while read -u3 line; do
 101                 case "$line" in
 102                 ( *' is object id '* )
 103                 set -- $line
 104                 if test $(( count += 1 )) -gt 1 ; then
 105                         (( $6 != prev + 1 )) && error=1
 106                 else
 107                         first=$(( $6 + 0 ))
 108                 fi
 109                 prev=$6
 110                 ;;
 111                 esac
 112         done
 113         exec 3<&-
 114
 115         if [ $nobj -ne $count ]; then
 116                 echo "ERROR: $nobj != $count" >&2
 117                 cat $rfile >&2
 118                 echo "ERROR"
 119         elif [ $error -ne 0 ]; then
 120                 echo "ERROR: non contiguous objs found" >&2
 121                 echo ERROR
 122         else
 123                 echo $first
 124         fi
 125         return $error
 126 }
 127
 128 # destroys all objects created in create_objects routine
 129 # parameter: 3. start obj id.
 130 destroy_objects () {
 131         local host=$1
 132         local devno=$2
 133         local obj0=$3
 134         local nobj=$4
 135         local rfile=$5
 136
 137         remote_shell $host $lctl --device $devno destroy $obj0 $nobj > $rfile 2>&1
 138 }
 139
 140 get_stats () {
 141         local rfile=$1
 142
 143         gawk < $rfile                                                   \
 144         '/^Selected device [0-9]+$/ {                                   \
 145                 n = 0;                                                  \
 146                 next;                                                   \
 147         }                                                               \
 148         /error/ {                                                       \
 149                 n = -1;                                                 \
 150                 exit;                                                   \
 151         }                                                               \
 152         /^Total/ {                                                      \
 153                 next;                                                   \
 154         }                                                               \
 155         /^[0-9]+\/[0-9]+ Total: [0-9]+\.[0-9]+\/second$/ {              \
 156                 n++;                                                    \
 157                 v=strtonum($3);                                         \
 158                 if (n == 1 || v < min)                                  \
 159                         min = v;                                        \
 160                 if (n == 1 || v > max)                                  \
 161                         max = v;                                        \
 162                 next;                                                   \
 163         }                                                               \
 164         {                                                               \
 165                 if (n != 0) {                                           \
 166                         n = -1;                                         \
 167                         exit;                                           \
 168                 }                                                       \
 169         }                                                               \
 170         END {                                                           \
 171                 printf "%d %f %f\n", n, min, max                        \
 172         }'
 173 }
 174
 175 get_global_stats () {
 176         local rfile=$1
 177
 178         awk < $rfile                                                    \
 179         'BEGIN {                                                        \
 180                 n = 0;                                                  \
 181         }                                                               \
 182         {                                                               \
 183                 n++;                                                    \
 184                 if (n == 1) {                                           \
 185                         err = $1;                                       \
 186                         min = $2;                                       \
 187                         max = $3;                                       \
 188                 } else {                                                \
 189                         if ($1 < err)                                   \
 190                                 err = $1;                               \
 191                         if ($2 < min)                                   \
 192                                 min = $2;                               \
 193                         if ($3 > max)                                   \
 194                                 max = $3;                               \
 195                 }                                                       \
 196         }                                                               \
 197         END {                                                           \
 198                 if (n == 0)                                             \
 199                         err = 0;                                        \
 200                 printf "%d %f %f\n", err, min, max                      \
 201         }'
 202 }
 203
 204 # enable or disable data check.
 205 # parameter: 1. read/write
 206 testname2type () {
 207         # 'x' disables data check
 208         if ((verify)); then
 209                 x=""
 210         else
 211                 x="x"
 212         fi
 213         case $1 in
 214         *write*)  echo "w$x";;
 215         *)        echo "r$x";;
 216         esac
 217 }
 218
 219 # for "echo_client + obdfilter" case, "prep + commit" mode should be used
 220 # for "echo_client + osc" case, "BRW" mode should be used
 221 testcase2mode() {
 222         case $case in
 223         disk)   echo "p";;
 224         *)      echo "g";;
 225         esac
 226 }
 227
 228 print_summary () {
 229         if [ "$1" = "-n" ]; then
 230                 minusn=$1; shift
 231         else
 232                 minusn=""
 233         fi
 234         echo $minusn "$*" >> $rsltf
 235         echo $minusn "$*"
 236 }
 237
 238 # Return a numeric version code based on a version string.  The version
 239 # code is useful for comparison two version strings to see which is newer.
 240 version_code() {
 241         # split arguments like "2.3.61" into "2", "3", "61"
 242         eval set -- $(tr "[:punct:]" " " <<< $*)
 243         echo -n "$((($1 << 16) | ($2 << 8) | $3))"
 244 }
 245
 246 # inspired from the lustre_build_version routine in test-framework.sh
 247 get_lustre_version() {
 248         local host=${1:-${unique_hosts[0]}}
 249         local ver
 250
 251         ver=$(remote_shell $host "$lctl get_param -n version 2>/dev/null ||
 252                                 $lctl lustre_build_version 2>/dev/null ||
 253                                 $lctl --version 2>/dev/null | cut -d' ' -f2")
 254         local lver=$(egrep -i "lustre: |version: " <<<$ver | head -n 1)
 255         [ -n "$lver" ] && ver="$lver"
 256
 257         sed -e 's/.*: //' -e 's/^v//' -e 's/-.*//' -e 's/_/./g' <<<$ver |
 258                 cut -d. -f1-4
 259 }
 260
 261 # Check whether the record size (KBytes) exceeds the maximum bulk I/O RPC size
 262 # or not.
 263 check_record_size() {
 264         [ $(version_code $(get_lustre_version)) -lt $(version_code 2.3.61) ] &&
 265                 rszmax=1024
 266
 267         if [ "$rszhi" -gt "$rszmax" ]; then
 268                 echo "Test disk case support maximum ${rszmax}KB IO data" \
 269                      "(rszhi=$rszhi is too big), please use a smaller value."
 270                 return 1
 271         fi
 272         return 0
 273 }
 274
 275 # Customisation variables
 276 #####################################################################
 277 # One can change variable values in this section as per requirements
 278
 279 if [ -n "$targets" ]; then
 280         declare -a ost_names
 281         declare -a client_names
 282         count=0
 283         for name in $targets; do
 284                 if [ $case == "disk" ]; then
 285                 ost_names[$count]=$name
 286                 else
 287                 client_names[$count]=$name
 288                 fi
 289                 count=$((count + 1))
 290         done
 291 fi
 292
 293 # what tests to run (first must be write)
 294 tests_str=${tests_str:-""}
 295 if [ -n "$tests_str" ]; then
 296         declare -a tests
 297         count=0
 298         for name in $tests_str; do
 299                 tests[$count]=$name
 300                 count=$((count + 1))
 301         done
 302 else
 303         #tests=(write rewrite read reread rewrite_again)
 304         tests=(write rewrite read)
 305 fi
 306
 307 # restart from here iff all are defined
 308 restart_rsz=
 309 restart_thr=1
 310 restart_nobj=1
 311
 312 # machine's page size (KB)
 313 PAGE_SIZE=${PAGE_SIZE:-$(($(getconf PAGE_SIZE) / 1024))}
 314 PAGE_SIZE=${PAGE_SIZE:-4}
 315
 316 snap=1
 317 clean_srv_OSS=0
 318 # Customisation variables ends here.
 319 #####################################################################
 320 # leave the rest of this alone unless you know what you're doing...
 321
 322 # check and insert obdecho module
 323 if ! lsmod | grep obdecho > /dev/null; then
 324         modprobe obdecho
 325 fi
 326 if [ ${#tests[@]} -eq 0 -o "${tests[0]}" != "write" ]; then
 327         echo "tests: ${tests[@]}"
 328         echo "First test must be 'write'" 1>&2
 329         exit 1
 330 fi
 331
 332 rsltf="${rslt}.summary"
 333 workf="${rslt}.detail"
 334 cmdsf="${rslt}.script"
 335 vmstatf="${rslt}.vmstat"
 336 echo -n > $rsltf
 337 echo -n > $workf
 338
 339 # hide a little trick to unset this from the command line
 340 if [ "$lustre_root" == " " ]; then
 341         unset lustre_root
 342 fi
 343
 344 if [ -z "$lustre_root" ]; then
 345         lctl=lctl
 346 else
 347         lctl=${lustre_root}/utils/lctl
 348 fi
 349
 350 # split out hostnames from client/ost names
 351 ndevs=0
 352 for trgt in $targets; do
 353         str=($(split_hostname $trgt))
 354         host_names[$ndevs]=${str[0]}
 355         client_names[$ndevs]=${str[1]}
 356         ndevs=$((ndevs + 1))
 357 done
 358 if [ $case == "disk" ]; then
 359         for ((i = 0; i < $ndevs; i++)); do
 360                 ost_names[$i]=${client_names[$i]}
 361         done
 362 fi
 363 if [ $case == "netdisk" ]; then
 364         if [ "$targets" ]; then
 365                 for ((i = 0; i < $ndevs; i++)); do
 366                         setup_osc_for_remote_ost ${host_names[$i]} \
 367                                                  ${client_names[$i]} $i
 368                         osc_name=${client_names[$i]}_osc
 369                         ec_using_osc $osc_name
 370                         cleanup_oscs="$cleanup_oscs $osc_name"
 371                 done
 372         else
 373                 client_names_str=$($lctl dl | grep -v mdt |
 374                         awk '{if ($2 == "UP" && $3 == "osc") {print $4} }')
 375                 count=0;
 376                 for name in $client_names_str; do
 377                         client_names[$count]=$(echo $name | sed 's/-osc-.*$//')
 378                         count=$((count + 1))
 379                 done
 380
 381                 host_names_str=$($lctl dl -t | grep -v mdt |
 382                         awk '{if ($2 == "UP" && $3 == "osc") {print $7} }')
 383                 count=0;
 384                 for name in $host_names_str; do
 385                         host_names[$count]=$(echo $name | sed 's/@.*$//')
 386                         count=$((count + 1))
 387                 done
 388
 389                 for (( i = 0; i < $count; i++ )) do
 390                         setup_osc_for_remote_ost ${host_names[$i]} \
 391                                                  ${client_names[$i]} $i
 392                         osc_name=${client_names[$i]}_osc
 393                         ec_using_osc $osc_name
 394                         cleanup_oscs="$cleanup_oscs $osc_name"
 395                 done
 396         fi
 397
 398         echo_clients=$($lctl dl | grep echo_client |
 399                        awk "{if (\$2 == \"UP\" && \$3 == \"echo_client\") { \
 400                                 print \$4} }")
 401         cnt=0;
 402         for name in $echo_clients; do
 403                 client_names[$cnt]=$name
 404                 host_names[$cnt]=localhost
 405                 cnt=$((cnt + 1))
 406         done
 407         ndevs=${#client_names[@]}
 408 fi
 409 if [ $case == "network" ]; then
 410         server_nid=$targets
 411         if [ -z "$server_nid" ]; then
 412                 echo "Specify hostname or ip-address of server"
 413                 exit 1;
 414         fi
 415         # check for obdecho module on server
 416         if ! dsh $server_nid root "lsmod | grep obdecho > /dev/null"; then
 417                 dsh $server_nid root "modprobe obdecho"
 418         fi
 419         # Now do the server setup
 420         setup_srv_obd $server_nid "echo_srv"
 421         oss_on_srv=$(dsh $server_nid root "$lctl dl | grep OSS" |
 422                      awk '{ print $4 }')
 423         if [ -z $oss_on_srv ]; then
 424                 setup_OSS $server_nid
 425                 clean_srv_OSS=1
 426         fi
 427         if ! dsh $server_nid root "$lctl dl | grep obdecho > /dev/null 2>&1"; then
 428                 echo "obdecho not setup on server"
 429                 exit 1
 430         fi
 431         if ! dsh $server_nid root "$lctl dl | grep ost > /dev/null 2>&1"; then
 432                 echo "ost not setup on server"
 433                 exit 1
 434         fi
 435         # Now start client setup
 436         osc_names_str=$($lctl dl| grep osc | grep -v mdt | grep UP || true)
 437         if [ -n "$osc_names_str" ]; then
 438                 echo "The existing setup must be cleaned";
 439                 exit 0;
 440         fi
 441         ec_using_srv_nid $server_nid "echotmp" "echotmp_UUID"
 442         client_names[0]="echotmp_ecc"
 443 fi
 444 if [ -z "$targets" ]; then
 445         if [ $case == "disk" ]; then
 446                 get_targets
 447                 ndevs=${#ost_names[@]}
 448         fi
 449 fi
 450 # get vmstat started
 451 # disable portals debug and get obdecho loaded on all relevant hosts
 452 unique_hosts=($(unique ${host_names[@]}))
 453 load_obdechos
 454
 455 if [ $case == "disk" ]; then
 456         check_record_size || cleanup ${PIPESTATUS[0]}
 457 fi
 458
 459 pidcount=0
 460 for host in ${unique_hosts[@]}; do
 461         host_vmstatf=${vmstatf}_${host}
 462         echo -n > $host_vmstatf
 463         remote_shell $host "vmstat 5 >> $host_vmstatf" &> /dev/null &
 464         pid=$!
 465         vmstatpids[$pidcount]=$pid
 466         pidcount=$((pidcount + 1))
 467 done
 468 # get all the echo_client device numbers and names
 469 for ((i=0; i < $ndevs; i++)); do
 470         host=${host_names[$i]}
 471         devno=($(get_ec_devno $host "${client_names[$i]}" "${ost_names[$i]}"))
 472         if ((${#devno[@]} != 3)); then
 473                 cleanup 2
 474         fi
 475         devnos[$i]=${devno[0]}
 476         client_names[$i]=${devno[1]}
 477         do_teardown_ec[$i]=${devno[2]}
 478 done
 479 if (($ndevs <= 0 || ${#host_names[@]} <= 0)); then
 480         echo "no devices or hosts specified"
 481         cleanup 0 $clean_srv_OSS $cleanup_oscs
 482 fi
 483
 484 print_summary "$(date) Obdfilter-survey for case=$case from $(hostname)"
 485 for ((rsz = $rszlo; rsz <= $rszhi; rsz*=2)); do
 486         for ((nobj = $nobjlo; nobj <= $nobjhi; nobj*=2)); do
 487                 for ((thr = $thrlo; thr <= $thrhi; thr*=2)); do
 488                         if ((thr % nobj)); then
 489                                 continue
 490                         fi
 491                         # restart?
 492                         if [ -n "$restart_rsz" -a \
 493                              -n "$restart_nobj" -a \
 494                              -n "$restart_thr" ]; then
 495                                 if ((rsz < restart_rsz ||
 496                                      (rsz == restart_rsz &&
 497                                       (nobj < restart_nobj ||
 498                                        (nobj == restart_nobj &&
 499                                         thr < restart_thr))))); then
 500                                         continue;
 501                                 fi
 502                         fi
 503
 504                         # compute parameters
 505                         total_thr=$((ndevs * thr))
 506                         total_nobj=$((ndevs * nobj))
 507                         pages=$((rsz / PAGE_SIZE))
 508                         actual_rsz=$((pages * PAGE_SIZE))
 509                         count=$((size * 1024 / (actual_rsz * thr)))
 510                         actual_size=$((actual_rsz * count * thr))
 511                         total_size=$((actual_size * ndevs))
 512
 513                         # show computed parameters
 514                         str=$(printf 'ost %2d sz %8dK rsz %4dK obj %4d thr %4d ' \
 515                               $ndevs $total_size $actual_rsz $total_nobj $total_thr)
 516                         echo "=======================> $str" >> $workf
 517                         print_summary -n "$str"
 518
 519                         # create the objects
 520                         tmpf="${workf}_tmp"
 521                         for ((idx = 0; idx < $ndevs; idx++)); do
 522                                 host=${host_names[$idx]}
 523                                 devno=${devnos[$idx]}
 524                                 client_name="${host}:${client_names[$idx]}"
 525                                 echo "=============> Create $nobj on $client_name" >> $workf
 526                                 first_obj=$(create_objects $host $devno $nobj $tmpf)
 527                                 cat $tmpf >> $workf
 528                                 rm $tmpf
 529                                 if [ $first_obj = "ERROR" ]; then
 530                                         print_summary "created object #s on $client_name not contiguous"
 531                                         cleanup 3
 532                                 fi
 533                                 first_objs[$idx]=$first_obj
 534                         done # $ndevs
 535
 536                         # run tests
 537                         for test in ${tests[@]}; do
 538                                 declare -a pidarray
 539                                 for host in ${unique_hosts[@]}; do
 540                                         remote_shell $host \
 541                                             "lctl set_param -n osd*.*.force_sync 1 &>/dev/null || true"
 542                                         echo "starting run for test: $test rsz: $rsz " \
 543                                         "threads: $thr objects: $nobj" >> ${vmstatf}_${host}
 544                                 done
 545                                 print_summary -n "$test "
 546
 547                                 # create per-host script files
 548                                 for host in ${unique_hosts[@]}; do
 549                                         echo -n > ${cmdsf}_${host}
 550                                 done
 551                                 for ((idx = 0; idx < $ndevs; idx++)); do
 552                                         host=${host_names[$idx]}
 553                                         devno=${devnos[$idx]}
 554                                         tmpfi="${tmpf}_$idx"
 555                                         first_obj=${first_objs[$idx]}
 556                                         thr_per_obj=$((${thr}/${nobj}))
 557                                         echo >> ${cmdsf}_${host} \
 558                                         "$lctl > $tmpfi 2>&1 \\
 559                                         --threads $thr -$snap $devno \\
 560                                         test_brw $count $(testname2type $test) q $pages \\
 561                                         ${thr_per_obj}t${first_obj} $(testcase2mode)$pages &"
 562                                 done # $ndevs
 563                                 pidcount=0
 564                                 for host in ${unique_hosts[@]}; do
 565                                         echo "wait" >> ${cmdsf}_${host}
 566                                         pidarray[$pidcount]=0
 567                                         pidcount=$((pidcount + 1))
 568                                 done
 569                                 # timed run of all the per-host script files
 570                                 t0=$(date +%s.%N)
 571                                 pidcount=0
 572                                 for host in ${unique_hosts[@]}; do
 573                                         remote_shell $host bash < ${cmdsf}_${host} &
 574                                         pidarray[$pidcount]=$!
 575                                         pidcount=$((pidcount + 1))
 576                                 done
 577                                 pidcount=0
 578                                 for host in ${unique_hosts[@]}; do
 579                                         wait ${pidarray[$pidcount]}
 580                                         pidcount=$((pidcount + 1))
 581                                 done
 582                                 #wait
 583                                 t1=$(date +%s.%N)
 584                                 # clean up per-host script files
 585                                 for host in ${unique_hosts[@]}; do
 586                                         rm ${cmdsf}_${host}
 587                                 done
 588
 589                                 # compute bandwidth from total data / elapsed time
 590                                 str=$(awk "BEGIN {printf \"%7.2f \",\
 591                                 $total_size / (( $t1 - $t0 ) * 1024)}")
 592                                 print_summary -n "$str"
 593                                 # collect/check individual OST stats
 594                                 echo -n > $tmpf
 595                                 for ((idx = 0; idx < $ndevs; idx++)); do
 596                                         client_name="${host_names[$idx]}:${client_names[$idx]}"
 597                                         tmpfi="${tmpf}_$idx"
 598                                         echo "=============> $test $client_name" >> $workf
 599                                         host="${host_names[$idx]}"
 600                                         remote_shell $host cat $tmpfi > ${tmpfi}_local
 601                                         cat ${tmpfi}_local >> $workf
 602                                         get_stats ${tmpfi}_local >> $tmpf
 603                                         rm -f $tmpfi ${tmpfi}_local
 604                                 done # $ndevs
 605
 606                                 # compute/display global min/max stats
 607                                 echo "=============> $test global" >> $workf
 608                                 cat $tmpf >> $workf
 609                                 stats=($(get_global_stats $tmpf))
 610                                 rm $tmpf
 611                                 if ((stats[0] <= 0)); then
 612                                         if ((stats[0] < 0)); then
 613                                                 str=$(printf "%17s " ERROR)
 614                                         else
 615                                                 str=$(printf "%17s " SHORT)
 616                                         fi
 617                                 else
 618                                         str=$(awk "BEGIN {printf \"[%7.2f, %7.2f] \",\
 619                                         (${stats[1]} * $actual_rsz)/1024,\
 620                                         (${stats[2]} * $actual_rsz)/1024; exit}")
 621                                 fi
 622                                 print_summary -n "$str"
 623                         done # $tests[]
 624                         print_summary ""
 625
 626                         # destroy objects we created
 627                         for ((idx = 0; idx < $ndevs; idx++)); do
 628                                 host=${host_names[$idx]}
 629                                 devno=${devnos[$idx]}
 630                                 client_name="${host}:${client_names[$idx]}"
 631                                 first_obj=${first_objs[$idx]}
 632                                 echo "=============> Destroy $nobj on $client_name" >> $workf
 633                                 destroy_objects $host $devno $first_obj $nobj $tmpf
 634                                 cat $tmpf >> $workf
 635                                 rm $tmpf
 636                         done # $ndevs
 637                 done # $thr
 638         done # $nobj
 639 done # $rsz
 640 cleanup 0 $clean_srv_OSS $cleanup_oscs
 641 exit 0