3 ######################################################################
6 # specify obd instances to exercise
7 # these can be either...
8 # obdfilter instances (set 'ost_names')
10 # echo_client instances (set 'client_names')
11 # ... use 'host:name' for obd instances on other nodes.
12 # allow these to be passed in via string...
14 # one can specify only case=disk or case=network or case=netdisk through
17 # Perquisite: For "disk" case and "netdisk" case you need to have lustre setup
18 # with one or more ost's. For "network" case you need to have all
19 # modules (those llmount.sh loades) loaded in kernel. And the
20 # 'lctl dl' output must be blank.
23 # case 1 (local disk):
24 # $ nobjhi=2 thrhi=2 size=1024 case=disk sh obdfilter-survey
25 # one can also run test with user defined targets as follows,
26 # $ nobjhi=2 thrhi=2 size=1024 targets="lustre-OST0000 lustre-OST0001 ..." sh obdfilter-survey
28 # $ nobjhi=2 thrhi=2 size=1024 targets="<name/ip_of_server>" case=network sh obdfilter-survey
29 # where, targets is name or ip address of system, which you want to
31 # case 3 (network and disk):
32 # $ nobjhi=2 thrhi=2 size=1024 case=netdisk sh obdfilter-survey
33 # one can also run test with user defined targets as follows,
34 # $ nobjhi=2 thrhi=2 size=1024 targets="<osc_name> ..." sh obdfilter-survey
35 #[ NOTE: It is advised to have automated login (passwordless entry) between server and
36 # client systems on which this test runs.]
41 # The following variables can be set in the environment, or on the
43 # result file prefix (date/time + hostname makes unique)
44 # NB ensure path to it exists
45 rslt_loc=${rslt_loc:-"/tmp"}
46 rslt=${rslt:-"$rslt_loc/obdfilter_survey_`date +%F@%R`_`uname -n`"}
48 # Set this true to check file contents
51 # total size (MBytes) per obd instance
52 # large enough to avoid cache effects
53 # and to make test startup/shutdown overhead insignificant
56 # record size (KBytes) ( 7168 max)
60 # number of objects per OST
62 #was nobjhi=${nobjhi:-512}
65 # threads per OST (1024 max)
71 # create a set of objects, check there are 'n' contiguous ones and
72 # return the first or 'ERROR'
73 # parameter: 1. hostname
75 # 3. number of object to be created (specified by user)
82 remote_shell $host $lctl --device $devno create $nobj > $rfile 2>&1
88 echo "$line" | grep -q 'is object id'
92 if [ $first -eq 0 ]; then
93 first=$(echo $line | awk '{print $6}')
94 first=$(printf "%d" $first)
98 obj=$(echo $line | awk '{print $6}')
99 obj=$(printf "%d" $obj)
100 diff=$((obj - (prev+1)))
101 if [ $diff -ne 0 ]; then
108 if [ $nobj -ne $count ]; then
109 echo "ERROR: $nobj != $count" >&2
112 elif [ $error -ne 0 ]; then
113 echo "ERROR: non contiguous objs found" >&2
119 # destroys all objects created in create_objects routine
120 # parameter: 3. start obj id.
127 remote_shell $host $lctl --device $devno destroy $obj0 $nobj > $rfile 2>&1
133 '/^Selected device [0-9]+$/ {n = 0; next}\
134 /error/ {n = -1; exit}\
135 /^[0-9]+\/[0-9]+ Total: [0-9]+\.[0-9]+\/second$/ {n++; v=strtonum($3); \
136 if (n == 1 || v < min) min = v;\
137 if (n == 1 || v > max) max = v;\
139 {if (n != 0) {n = -1; exit}}\
140 END {printf "%d %f %f\n", n, min, max}'
143 get_global_stats () {
145 awk < $rfile 'BEGIN {n = 0;}\
146 {n++; if (n == 1) {err = $1; min = $2; max = $3} else\
147 {if ($1 < err) err = $1;\
148 if ($2 < min) min = $2;\
149 if ($3 > max) max = $3}}\
150 END {if (n == 0) err = 0;\
151 printf "%d %f %f\n", err, min, max}'
154 # enable or disable data check.
155 # parameter: 1. read/write
157 # 'x' disables data check
164 *write*) echo "w$x";;
170 if [ "$1" = "-n" ]; then
175 echo $minusn "$*" >> $rsltf
179 # Customisation variables
180 #####################################################################
181 # One can change variable values in this section as per requirements
183 targets=${targets:-""}
185 if [ -n "$targets" ]; then
187 declare -a client_names
189 for name in $targets; do
190 if [ $case == "disk" ]; then
191 ost_names[$count]=$name
193 client_names[$count]=$name
199 # what tests to run (first must be write)
200 tests_str=${tests_str:-""}
201 if [ -n "$tests_str" ]; then
204 for name in $tests_str; do
209 #tests=(write rewrite read reread rewrite_again)
210 tests=(write rewrite read)
213 # restart from here iff all are defined
218 # machine's page size (K)
219 if [ -z "$PAGE_SIZE" ]; then
220 if which python >/dev/null; then
221 PAGE_SIZE=`echo 'import resource; print resource.getpagesize()/1024;' |python`
224 PAGE_SIZE=${PAGE_SIZE:-4}
226 # max buffer_mem (total_threads * buffer size)
227 # (to avoid lctl ENOMEM problems)
228 max_buffer_mem=$((1024 * 1024))
231 # Customisation variables ends here.
232 #####################################################################
233 # leave the rest of this alone unless you know what you're doing...
235 # check and insert obdecho module
236 if ! lsmod | grep obdecho > /dev/null; then
239 if [ ${#tests[@]} -eq 0 -o "${tests[0]}" != "write" ]; then
240 echo "tests: ${tests[@]}"
241 echo "First test must be 'write'" 1>&2
245 rsltf="${rslt}.summary"
246 workf="${rslt}.detail"
247 cmdsf="${rslt}.script"
248 vmstatf="${rslt}.vmstat"
252 # hide a little trick to unset this from the command line
253 if [ "$lustre_root" == " " ]; then
257 if [ -z "$lustre_root" ]; then
260 lctl=${lustre_root}/utils/lctl
263 # split out hostnames from client/ost names
265 for trgt in $targets; do
266 str=(`split_hostname $trgt`)
267 host_names[$ndevs]=${str[0]}
268 client_names[$ndevs]=${str[1]}
271 if [ $case == "disk" ]; then
272 for ((i = 0; i < $ndevs; i++)); do
273 ost_names[$i]=${client_names[$i]}
276 if [ $case == "netdisk" ]; then
277 if [ "$targets" ]; then
278 for ((i = 0; i < $ndevs; i++)); do
279 setup_osc_for_remote_ost ${host_names[$i]} \
280 ${client_names[$i]} $i
281 osc_name=${client_names[$i]}_osc
282 ec_using_osc $osc_name
283 cleanup_oscs="$cleanup_oscs $osc_name"
286 client_names_str=$($lctl dl | grep -v mdt | \
287 awk '{if ($2 == "UP" && $3 == "osc") {print $4} }')
289 for name in $client_names_str; do
290 client_names[$count]=`echo $name | sed 's/-osc-.*$//'`
294 host_names_str=$($lctl dl -t | grep -v mdt | \
295 awk '{if ($2 == "UP" && $3 == "osc") {print $7} }')
297 for name in $host_names_str; do
298 host_names[$count]=`echo $name | sed 's/@.*$//'`
302 for (( i = 0; i < $count; i++ )) do
303 setup_osc_for_remote_ost ${host_names[$i]} \
304 ${client_names[$i]} $i
305 osc_name=${client_names[$i]}_osc
306 ec_using_osc $osc_name
307 cleanup_oscs="$cleanup_oscs $osc_name"
311 echo_clients=$($lctl dl | grep echo_client | awk "{if (\$2 == \"UP\" && \$3 == \"echo_client\") {print \$4} }")
313 for name in $echo_clients; do
314 client_names[$cnt]=$name
315 host_names[$cnt]=localhost
318 ndevs=${#client_names[@]}
320 if [ $case == "network" ]; then
322 if [ -z "$server_nid" ]; then
323 echo "Specify hostname or ip-address of server"
326 # check for obdecho module on server
327 if ! dsh $server_nid root "lsmod | grep obdecho > /dev/null"; then
328 dsh $server_nid root "modprobe obdecho"
330 # Now do the server setup
331 setup_srv_obd $server_nid "echo_srv"
332 oss_on_srv=`dsh $server_nid root "$lctl dl | grep OSS" | awk '{ print $4 }'`
333 if [ -z $oss_on_srv ]; then
334 setup_OSS $server_nid
337 if ! dsh $server_nid root "$lctl dl | grep obdecho > /dev/null 2>&1"; then
338 echo "obdecho not setup on server"
341 if ! dsh $server_nid root "$lctl dl | grep ost > /dev/null 2>&1"; then
342 echo "ost not setup on server"
345 # Now start client setup
346 osc_names_str=$($lctl dl| grep osc | grep -v mdt | grep UP)
347 if [ -n "$osc_names_str" ]; then
348 echo "The existing setup must be cleaned";
351 ec_using_srv_nid $server_nid "echotmp" "echotmp_UUID"
352 client_names[0]="echotmp_ecc"
354 if [ -z "$targets" ]; then
355 if [ $case == "disk" ]; then
357 ndevs=${#ost_names[@]}
361 # disable portals debug and get obdecho loaded on all relevant hosts
362 unique_hosts=(`unique ${host_names[@]}`)
365 for host in ${unique_hosts[@]}; do
366 host_vmstatf=${vmstatf}_${host}
367 echo -n > $host_vmstatf
368 remote_shell $host "vmstat 5 >> $host_vmstatf" &> /dev/null &
370 vmstatpids[$pidcount]=$pid
371 pidcount=$((pidcount+1))
373 # get all the echo_client device numbers and names
374 for ((i=0; i < $ndevs; i++)); do
375 host=${host_names[$i]}
376 devno=(`get_ec_devno $host "${client_names[$i]}" "${ost_names[$i]}"`)
377 if ((${#devno[@]} != 3)); then
380 devnos[$i]=${devno[0]}
381 client_names[$i]=${devno[1]}
382 do_teardown_ec[$i]=${devno[2]}
384 if (($ndevs <= 0 || ${#host_names[@]} <= 0)); then
385 echo "no devices or hosts specified"
386 cleanup 0 $clean_srv_OSS $cleanup_oscs
388 # Buffers will be spread out among all hosts, so allow for that
389 max_buffer_mem=$(( ${max_buffer_mem} * ${#unique_hosts[@]} ))
390 print_summary "$(date) Obdfilter-survey for case=$case from $(hostname)"
391 for ((rsz = $rszlo; rsz <= $rszhi; rsz*=2)); do
392 for ((nobj = $nobjlo; nobj <= $nobjhi; nobj*=2)); do
393 for ((thr = $thrlo; thr <= $thrhi; thr*=2)); do
394 if ((thr % nobj)); then
398 if [ -n "$restart_rsz" -a\
399 -n "$restart_nobj" -a\
400 -n "$restart_thr" ]; then
401 if ((rsz < restart_rsz ||\
402 (rsz == restart_rsz &&\
403 (nobj < restart_nobj ||\
404 (nobj == restart_nobj &&\
405 thr < restart_thr))))); then
410 total_thr=$((ndevs*thr))
411 total_nobj=$((ndevs*nobj))
412 pages=$((rsz/PAGE_SIZE))
413 actual_rsz=$((pages*PAGE_SIZE))
414 count=$((size*1024/(actual_rsz*thr)))
415 actual_size=$((actual_rsz*count*thr))
416 total_size=$((actual_size*ndevs))
417 # show computed parameters
418 str=`printf 'ost %2d sz %8dK rsz %4dK obj %4d thr %4d ' \
419 $ndevs $total_size $actual_rsz $total_nobj $total_thr`
420 echo "=======================> $str" >> $workf
421 print_summary -n "$str"
422 if ((total_thr * actual_rsz > max_buffer_mem)); then
423 print_summary "Too much buffer space"
428 for ((idx = 0; idx < $ndevs; idx++)); do
429 host=${host_names[$idx]}
430 devno=${devnos[$idx]}
431 client_name="${host}:${client_names[$idx]}"
432 echo "=============> Create $nobj on $client_name" >> $workf
433 first_obj=`create_objects $host $devno $nobj $tmpf`
436 if [ $first_obj = "ERROR" ]; then
437 print_summary "created object #s on $client_name not contiguous"
440 first_objs[$idx]=$first_obj
443 for test in ${tests[@]}; do
445 for host in ${unique_hosts[@]}; do
446 echo "starting run for test: $test rsz: $rsz threads: $thr objects: $nobj" >> ${vmstatf}_${host}
448 print_summary -n "$test "
449 # create per-host script files
450 for host in ${unique_hosts[@]}; do
451 echo -n > ${cmdsf}_${host}
453 for ((idx = 0; idx < $ndevs; idx++)); do
454 host=${host_names[$idx]}
455 devno=${devnos[$idx]}
457 first_obj=${first_objs[$idx]}
458 thr_per_obj=$((${thr}/${nobj}))
459 echo >> ${cmdsf}_${host} \
460 "$lctl > $tmpfi 2>&1 \\
461 --threads $thr -$snap $devno \\
462 test_brw $count `testname2type $test` q $pages ${thr_per_obj}t${first_obj} &"
465 for host in ${unique_hosts[@]}; do
466 echo "wait" >> ${cmdsf}_${host}
467 pidarray[$pidcount]=0
468 pidcount=$((pidcount+1))
470 # timed run of all the per-host script files
473 for host in ${unique_hosts[@]}; do
474 remote_shell $host bash < ${cmdsf}_${host} &
475 pidarray[$pidcount]=$!
476 pidcount=$((pidcount+1))
479 for host in ${unique_hosts[@]}; do
480 wait ${pidarray[$pidcount]}
481 pidcount=$((pidcount+1))
485 # clean up per-host script files
486 for host in ${unique_hosts[@]}; do
490 # compute bandwidth from total data / elapsed time
491 str=`awk "BEGIN {printf \"%7.2f \",\
492 $total_size / (( $t1 - $t0 ) * 1024)}"`
493 print_summary -n "$str"
494 # collect/check individual OST stats
496 for ((idx = 0; idx < $ndevs; idx++)); do
497 client_name="${host_names[$idx]}:${client_names[$idx]}"
499 echo "=============> $test $client_name" >> $workf
500 host="${host_names[$idx]}"
501 remote_shell $host cat $tmpfi > ${tmpfi}_local
502 cat ${tmpfi}_local >> $workf
503 get_stats ${tmpfi}_local >> $tmpf
504 rm -f $tmpfi ${tmpfi}_local
506 # compute/display global min/max stats
507 echo "=============> $test global" >> $workf
509 stats=(`get_global_stats $tmpf`)
511 if ((stats[0] <= 0)); then
512 if ((stats[0] < 0)); then
513 str=`printf "%17s " ERROR`
515 str=`printf "%17s " SHORT`
518 str=`awk "BEGIN {printf \"[%7.2f,%7.2f] \",\
519 (${stats[1]} * $actual_rsz)/1024,\
520 (${stats[2]} * $actual_rsz)/1024; exit}"`
522 print_summary -n "$str"
525 # destroy objects we created
526 for ((idx = 0; idx < $ndevs; idx++)); do
527 host=${host_names[$idx]}
528 devno=${devnos[$idx]}
529 client_name="${host}:${client_names[$idx]}"
530 first_obj=${first_objs[$idx]}
531 echo "=============> Destroy $nobj on $client_name" >> $workf
532 destroy_objects $host $devno $first_obj $nobj $tmpf
539 cleanup 0 $clean_srv_OSS $cleanup_oscs