tools/testing/selftests/rcutorture/bin/kvm.sh

   1 #!/bin/bash
   2 #
   3 # Run a series of 14 tests under KVM.  These are not particularly
   4 # well-selected or well-tuned, but are the current set.  Run from the
   5 # top level of the source tree.
   6 #
   7 # Edit the definitions below to set the locations of the various directories,
   8 # as well as the test duration.
   9 #
  10 # Usage: kvm.sh [ options ]
  11 #
  12 # This program is free software; you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation; either version 2 of the License, or
  15 # (at your option) any later version.
  16 #
  17 # This program is distributed in the hope that it will be useful,
  18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 # GNU General Public License for more details.
  21 #
  22 # You should have received a copy of the GNU General Public License
  23 # along with this program; if not, you can access it online at
  24 # http://www.gnu.org/licenses/gpl-2.0.html.
  25 #
  26 # Copyright (C) IBM Corporation, 2011
  27 #
  28 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
  29
  30 scriptname=$0
  31 args="$*"
  32
  33 T=/tmp/kvm.sh.$$
  34 trap 'rm -rf $T' 0
  35 mkdir $T
  36
  37 dur=$((30*60))
  38 dryrun=""
  39 KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
  40 PATH=${KVM}/bin:$PATH; export PATH
  41 TORTURE_DEFCONFIG=defconfig
  42 TORTURE_BOOT_IMAGE=""
  43 TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
  44 TORTURE_KMAKE_ARG=""
  45 TORTURE_SHUTDOWN_GRACE=180
  46 TORTURE_SUITE=rcu
  47 resdir=""
  48 configs=""
  49 cpus=0
  50 ds=`date +%Y.%m.%d-%H:%M:%S`
  51 jitter="-1"
  52
  53 . functions.sh
  54
  55 usage () {
  56         echo "Usage: $scriptname optional arguments:"
  57         echo "       --bootargs kernel-boot-arguments"
  58         echo "       --bootimage relative-path-to-kernel-boot-image"
  59         echo "       --buildonly"
  60         echo "       --configs \"config-file list w/ repeat factor (3*TINY01)\""
  61         echo "       --cpus N"
  62         echo "       --datestamp string"
  63         echo "       --defconfig string"
  64         echo "       --dryrun sched|script"
  65         echo "       --duration minutes"
  66         echo "       --interactive"
  67         echo "       --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
  68         echo "       --kmake-arg kernel-make-arguments"
  69         echo "       --mac nn:nn:nn:nn:nn:nn"
  70         echo "       --no-initrd"
  71         echo "       --qemu-args qemu-system-..."
  72         echo "       --qemu-cmd qemu-system-..."
  73         echo "       --results absolute-pathname"
  74         echo "       --torture rcu"
  75         exit 1
  76 }
  77
  78 while test $# -gt 0
  79 do
  80         case "$1" in
  81         --bootargs|--bootarg)
  82                 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
  83                 TORTURE_BOOTARGS="$2"
  84                 shift
  85                 ;;
  86         --bootimage)
  87                 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
  88                 TORTURE_BOOT_IMAGE="$2"
  89                 shift
  90                 ;;
  91         --buildonly)
  92                 TORTURE_BUILDONLY=1
  93                 ;;
  94         --configs|--config)
  95                 checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
  96                 configs="$2"
  97                 shift
  98                 ;;
  99         --cpus)
 100                 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
 101                 cpus=$2
 102                 shift
 103                 ;;
 104         --datestamp)
 105                 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
 106                 ds=$2
 107                 shift
 108                 ;;
 109         --defconfig)
 110                 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
 111                 TORTURE_DEFCONFIG=$2
 112                 shift
 113                 ;;
 114         --dryrun)
 115                 checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
 116                 dryrun=$2
 117                 shift
 118                 ;;
 119         --duration)
 120                 checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
 121                 dur=$(($2*60))
 122                 shift
 123                 ;;
 124         --interactive)
 125                 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
 126                 ;;
 127         --jitter)
 128                 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
 129                 jitter="$2"
 130                 shift
 131                 ;;
 132         --kmake-arg)
 133                 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
 134                 TORTURE_KMAKE_ARG="$2"
 135                 shift
 136                 ;;
 137         --mac)
 138                 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
 139                 TORTURE_QEMU_MAC=$2
 140                 shift
 141                 ;;
 142         --no-initrd)
 143                 TORTURE_INITRD=""; export TORTURE_INITRD
 144                 ;;
 145         --qemu-args|--qemu-arg)
 146                 checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error'
 147                 TORTURE_QEMU_ARG="$2"
 148                 shift
 149                 ;;
 150         --qemu-cmd)
 151                 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
 152                 TORTURE_QEMU_CMD="$2"
 153                 shift
 154                 ;;
 155         --results)
 156                 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 157                 resdir=$2
 158                 shift
 159                 ;;
 160         --shutdown-grace)
 161                 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
 162                 TORTURE_SHUTDOWN_GRACE=$2
 163                 shift
 164                 ;;
 165         --torture)
 166                 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuperf\)$' '^--'
 167                 TORTURE_SUITE=$2
 168                 shift
 169                 ;;
 170         *)
 171                 echo Unknown argument $1
 172                 usage
 173                 ;;
 174         esac
 175         shift
 176 done
 177
 178 if test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh
 179 then
 180         :
 181 else
 182         echo No initrd and unable to create one, aborting test >&2
 183         exit 1
 184 fi
 185
 186 CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 187
 188 if test -z "$configs"
 189 then
 190         configs="`cat $CONFIGFRAG/CFLIST`"
 191 fi
 192
 193 if test -z "$resdir"
 194 then
 195         resdir=$KVM/res
 196 fi
 197
 198 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
 199 touch $T/cfgcpu
 200 for CF in $configs
 201 do
 202         case $CF in
 203         [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
 204                 config_reps=`echo $CF | sed -e 's/\*.*$//'`
 205                 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 206                 ;;
 207         *)
 208                 config_reps=1
 209                 CF1=$CF
 210                 ;;
 211         esac
 212         if test -f "$CONFIGFRAG/$CF1"
 213         then
 214                 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
 215                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 216                 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
 217                 do
 218                         echo $CF1 $cpu_count >> $T/cfgcpu
 219                 done
 220         else
 221                 echo "The --configs file $CF1 does not exist, terminating."
 222                 exit 1
 223         fi
 224 done
 225 sort -k2nr $T/cfgcpu > $T/cfgcpu.sort
 226
 227 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 228 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 229 BEGIN {
 230         njobs = 0;
 231 }
 232
 233 {
 234         # Read file of tests and corresponding required numbers of CPUs.
 235         cf[njobs] = $1;
 236         cpus[njobs] = $2;
 237         njobs++;
 238 }
 239
 240 END {
 241         alldone = 0;
 242         batch = 0;
 243         nc = -1;
 244
 245         # Each pass through the following loop creates on test batch
 246         # that can be executed concurrently given ncpus.  Note that a
 247         # given test that requires more than the available CPUs will run in
 248         # their own batch.  Such tests just have to make do with what
 249         # is available.
 250         while (nc != ncpus) {
 251                 batch++;
 252                 nc = ncpus;
 253
 254                 # Each pass through the following loop considers one
 255                 # test for inclusion in the current batch.
 256                 for (i = 0; i < njobs; i++) {
 257                         if (done[i])
 258                                 continue; # Already part of a batch.
 259                         if (nc >= cpus[i] || nc == ncpus) {
 260
 261                                 # This test fits into the current batch.
 262                                 done[i] = batch;
 263                                 nc -= cpus[i];
 264                                 if (nc <= 0)
 265                                         break; # Too-big test in its own batch.
 266                         }
 267                 }
 268         }
 269
 270         # Dump out the tests in batch order.
 271         for (b = 1; b <= batch; b++)
 272                 for (i = 0; i < njobs; i++)
 273                         if (done[i] == b)
 274                                 print cf[i], cpus[i];
 275 }'
 276
 277 # Generate a script to execute the tests in appropriate batches.
 278 cat << ___EOF___ > $T/script
 279 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
 280 KVM="$KVM"; export KVM
 281 PATH="$PATH"; export PATH
 282 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 283 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 284 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 285 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
 286 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 287 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 288 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 289 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 290 TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
 291 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 292 if ! test -e $resdir
 293 then
 294         mkdir -p "$resdir" || :
 295 fi
 296 mkdir $resdir/$ds
 297 echo Results directory: $resdir/$ds
 298 echo $scriptname $args
 299 touch $resdir/$ds/log
 300 echo $scriptname $args >> $resdir/$ds/log
 301 echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
 302 pwd > $resdir/$ds/testid.txt
 303 if test -d .git
 304 then
 305         git status >> $resdir/$ds/testid.txt
 306         git rev-parse HEAD >> $resdir/$ds/testid.txt
 307         if ! git diff HEAD > $T/git-diff 2>&1
 308         then
 309                 cp $T/git-diff $resdir/$ds
 310         fi
 311 fi
 312 ___EOF___
 313 awk < $T/cfgcpu.pack \
 314         -v CONFIGDIR="$CONFIGFRAG/" \
 315         -v KVM="$KVM" \
 316         -v ncpus=$cpus \
 317         -v jitter="$jitter" \
 318         -v rd=$resdir/$ds/ \
 319         -v dur=$dur \
 320         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 321         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 322 'BEGIN {
 323         i = 0;
 324 }
 325
 326 {
 327         cf[i] = $1;
 328         cpus[i] = $2;
 329         i++;
 330 }
 331
 332 # Dump out the scripting required to run one test batch.
 333 function dump(first, pastlast, batchnum)
 334 {
 335         print "echo ----Start batch " batchnum ": `date`";
 336         print "echo ----Start batch " batchnum ": `date` >> " rd "/log";
 337         jn=1
 338         for (j = first; j < pastlast; j++) {
 339                 builddir=KVM "/b" jn
 340                 cpusr[jn] = cpus[j];
 341                 if (cfrep[cf[j]] == "") {
 342                         cfr[jn] = cf[j];
 343                         cfrep[cf[j]] = 1;
 344                 } else {
 345                         cfrep[cf[j]]++;
 346                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 347                 }
 348                 if (cpusr[jn] > ncpus && ncpus != 0)
 349                         ovf = "-ovf";
 350                 else
 351                         ovf = "";
 352                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";
 353                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log";
 354                 print "rm -f " builddir ".*";
 355                 print "touch " builddir ".wait";
 356                 print "mkdir " builddir " > /dev/null 2>&1 || :";
 357                 print "mkdir " rd cfr[jn] " || :";
 358                 print "kvm-test-1-run.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn]  "/kvm-test-1-run.sh.out 2>&1 &"
 359                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`";
 360                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log";
 361                 print "while test -f " builddir ".wait"
 362                 print "do"
 363                 print "\tsleep 1"
 364                 print "done"
 365                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`";
 366                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log";
 367                 jn++;
 368         }
 369         for (j = 1; j < jn; j++) {
 370                 builddir=KVM "/b" j
 371                 print "rm -f " builddir ".ready"
 372                 print "if test -z \"$TORTURE_BUILDONLY\""
 373                 print "then"
 374                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`";
 375                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date` >> " rd "/log";
 376                 print "fi"
 377         }
 378         njitter = 0;
 379         split(jitter, ja);
 380         if (ja[1] == -1 && ncpus == 0)
 381                 njitter = 1;
 382         else if (ja[1] == -1)
 383                 njitter = ncpus;
 384         else
 385                 njitter = ja[1];
 386         for (j = 0; j < njitter; j++)
 387                 print "jitter.sh " j " " dur " " ja[2] " " ja[3] "&"
 388         print "wait"
 389         print "if test -z \"$TORTURE_BUILDONLY\""
 390         print "then"
 391         print "\techo ---- All kernel runs complete. `date`";
 392         print "\techo ---- All kernel runs complete. `date` >> " rd "/log";
 393         print "fi"
 394         for (j = 1; j < jn; j++) {
 395                 builddir=KVM "/b" j
 396                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:";
 397                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log";
 398                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out";
 399                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out >> " rd "/log";
 400         }
 401 }
 402
 403 END {
 404         njobs = i;
 405         nc = ncpus;
 406         first = 0;
 407         batchnum = 1;
 408
 409         # Each pass through the following loop considers one test.
 410         for (i = 0; i < njobs; i++) {
 411                 if (ncpus == 0) {
 412                         # Sequential test specified, each test its own batch.
 413                         dump(i, i + 1, batchnum);
 414                         first = i;
 415                         batchnum++;
 416                 } else if (nc < cpus[i] && i != 0) {
 417                         # Out of CPUs, dump out a batch.
 418                         dump(first, i, batchnum);
 419                         first = i;
 420                         nc = ncpus;
 421                         batchnum++;
 422                 }
 423                 # Account for the CPUs needed by the current test.
 424                 nc -= cpus[i];
 425         }
 426         # Dump the last batch.
 427         if (ncpus != 0)
 428                 dump(first, i, batchnum);
 429 }' >> $T/script
 430
 431 cat << ___EOF___ >> $T/script
 432 echo
 433 echo
 434 echo " --- `date` Test summary:"
 435 echo Results directory: $resdir/$ds
 436 kvm-recheck.sh $resdir/$ds
 437 ___EOF___
 438
 439 if test "$dryrun" = script
 440 then
 441         cat $T/script
 442         exit 0
 443 elif test "$dryrun" = sched
 444 then
 445         # Extract the test run schedule from the script.
 446         egrep 'Start batch|Starting build\.' $T/script |
 447                 grep -v ">>" |
 448                 sed -e 's/:.*$//' -e 's/^echo //'
 449         exit 0
 450 else
 451         # Not a dryrun, so run the script.
 452         sh $T/script
 453 fi
 454
 455 # Tracing: trace_event=rcu:rcu_grace_period,rcu:rcu_future_grace_period,rcu:rcu_grace_period_init,rcu:rcu_nocb_wake,rcu:rcu_preempt_task,rcu:rcu_unlock_preempted_task,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_kfree_callback,rcu:rcu_batch_start,rcu:rcu_invoke_callback,rcu:rcu_invoke_kfree_callback,rcu:rcu_batch_end,rcu:rcu_torture_read,rcu:rcu_barrier