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

   1 #!/bin/bash
   2 #
   3 # Run a series of tests under KVM.  By default, this series is specified
   4 # by the relevant CFLIST file, but can be overridden by the --configs
   5 # command-line argument.
   6 #
   7 # Usage: kvm.sh [ options ]
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, you can access it online at
  21 # http://www.gnu.org/licenses/gpl-2.0.html.
  22 #
  23 # Copyright (C) IBM Corporation, 2011
  24 #
  25 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
  26
  27 scriptname=$0
  28 args="$*"
  29
  30 T=${TMPDIR-/tmp}/kvm.sh.$$
  31 trap 'rm -rf $T' 0
  32 mkdir $T
  33
  34 cd `dirname $scriptname`/../../../../../
  35
  36 dur=$((30*60))
  37 dryrun=""
  38 KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
  39 PATH=${KVM}/bin:$PATH; export PATH
  40 TORTURE_DEFCONFIG=defconfig
  41 TORTURE_BOOT_IMAGE=""
  42 TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
  43 TORTURE_KCONFIG_ARG=""
  44 TORTURE_KMAKE_ARG=""
  45 TORTURE_QEMU_MEM=512
  46 TORTURE_SHUTDOWN_GRACE=180
  47 TORTURE_SUITE=rcu
  48 resdir=""
  49 configs=""
  50 cpus=0
  51 ds=`date +%Y.%m.%d-%H:%M:%S`
  52 jitter="-1"
  53
  54 . functions.sh
  55
  56 usage () {
  57         echo "Usage: $scriptname optional arguments:"
  58         echo "       --bootargs kernel-boot-arguments"
  59         echo "       --bootimage relative-path-to-kernel-boot-image"
  60         echo "       --buildonly"
  61         echo "       --configs \"config-file list w/ repeat factor (3*TINY01)\""
  62         echo "       --cpus N"
  63         echo "       --datestamp string"
  64         echo "       --defconfig string"
  65         echo "       --dryrun sched|script"
  66         echo "       --duration minutes"
  67         echo "       --interactive"
  68         echo "       --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
  69         echo "       --kconfig Kconfig-options"
  70         echo "       --kmake-arg kernel-make-arguments"
  71         echo "       --mac nn:nn:nn:nn:nn:nn"
  72         echo "       --memory megabytes | nnnG"
  73         echo "       --no-initrd"
  74         echo "       --qemu-args qemu-arguments"
  75         echo "       --qemu-cmd qemu-system-..."
  76         echo "       --results absolute-pathname"
  77         echo "       --torture rcu"
  78         exit 1
  79 }
  80
  81 while test $# -gt 0
  82 do
  83         case "$1" in
  84         --bootargs|--bootarg)
  85                 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
  86                 TORTURE_BOOTARGS="$2"
  87                 shift
  88                 ;;
  89         --bootimage)
  90                 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
  91                 TORTURE_BOOT_IMAGE="$2"
  92                 shift
  93                 ;;
  94         --buildonly)
  95                 TORTURE_BUILDONLY=1
  96                 ;;
  97         --configs|--config)
  98                 checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
  99                 configs="$2"
 100                 shift
 101                 ;;
 102         --cpus)
 103                 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
 104                 cpus=$2
 105                 shift
 106                 ;;
 107         --datestamp)
 108                 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
 109                 ds=$2
 110                 shift
 111                 ;;
 112         --defconfig)
 113                 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
 114                 TORTURE_DEFCONFIG=$2
 115                 shift
 116                 ;;
 117         --dryrun)
 118                 checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
 119                 dryrun=$2
 120                 shift
 121                 ;;
 122         --duration)
 123                 checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
 124                 dur=$(($2*60))
 125                 shift
 126                 ;;
 127         --interactive)
 128                 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
 129                 ;;
 130         --jitter)
 131                 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
 132                 jitter="$2"
 133                 shift
 134                 ;;
 135         --kconfig)
 136                 checkarg --kconfig "(Kconfig options)" $# "$2" '^CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\( CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\)*$' '^error$'
 137                 TORTURE_KCONFIG_ARG="$2"
 138                 shift
 139                 ;;
 140         --kmake-arg)
 141                 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
 142                 TORTURE_KMAKE_ARG="$2"
 143                 shift
 144                 ;;
 145         --mac)
 146                 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
 147                 TORTURE_QEMU_MAC=$2
 148                 shift
 149                 ;;
 150         --memory)
 151                 checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
 152                 TORTURE_QEMU_MEM=$2
 153                 shift
 154                 ;;
 155         --no-initrd)
 156                 TORTURE_INITRD=""; export TORTURE_INITRD
 157                 ;;
 158         --qemu-args|--qemu-arg)
 159                 checkarg --qemu-args "(qemu arguments)" $# "$2" '^-' '^error'
 160                 TORTURE_QEMU_ARG="$2"
 161                 shift
 162                 ;;
 163         --qemu-cmd)
 164                 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
 165                 TORTURE_QEMU_CMD="$2"
 166                 shift
 167                 ;;
 168         --results)
 169                 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 170                 resdir=$2
 171                 shift
 172                 ;;
 173         --shutdown-grace)
 174                 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
 175                 TORTURE_SHUTDOWN_GRACE=$2
 176                 shift
 177                 ;;
 178         --torture)
 179                 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuperf\)$' '^--'
 180                 TORTURE_SUITE=$2
 181                 shift
 182                 if test "$TORTURE_SUITE" = rcuperf
 183                 then
 184                         # If you really want jitter for rcuperf, specify
 185                         # it after specifying rcuperf.  (But why?)
 186                         jitter=0
 187                 fi
 188                 ;;
 189         *)
 190                 echo Unknown argument $1
 191                 usage
 192                 ;;
 193         esac
 194         shift
 195 done
 196
 197 CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 198
 199 if test -z "$configs"
 200 then
 201         configs="`cat $CONFIGFRAG/CFLIST`"
 202 fi
 203
 204 if test -z "$resdir"
 205 then
 206         resdir=$KVM/res
 207 fi
 208
 209 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
 210 touch $T/cfgcpu
 211 for CF in $configs
 212 do
 213         case $CF in
 214         [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
 215                 config_reps=`echo $CF | sed -e 's/\*.*$//'`
 216                 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 217                 ;;
 218         *)
 219                 config_reps=1
 220                 CF1=$CF
 221                 ;;
 222         esac
 223         if test -f "$CONFIGFRAG/$CF1"
 224         then
 225                 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
 226                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 227                 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 228                 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
 229                 do
 230                         echo $CF1 $cpu_count >> $T/cfgcpu
 231                 done
 232         else
 233                 echo "The --configs file $CF1 does not exist, terminating."
 234                 exit 1
 235         fi
 236 done
 237 sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
 238
 239 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 240 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 241 BEGIN {
 242         njobs = 0;
 243 }
 244
 245 {
 246         # Read file of tests and corresponding required numbers of CPUs.
 247         cf[njobs] = $1;
 248         cpus[njobs] = $2;
 249         njobs++;
 250 }
 251
 252 END {
 253         batch = 0;
 254         nc = -1;
 255
 256         # Each pass through the following loop creates on test batch
 257         # that can be executed concurrently given ncpus.  Note that a
 258         # given test that requires more than the available CPUs will run in
 259         # their own batch.  Such tests just have to make do with what
 260         # is available.
 261         while (nc != ncpus) {
 262                 batch++;
 263                 nc = ncpus;
 264
 265                 # Each pass through the following loop considers one
 266                 # test for inclusion in the current batch.
 267                 for (i = 0; i < njobs; i++) {
 268                         if (done[i])
 269                                 continue; # Already part of a batch.
 270                         if (nc >= cpus[i] || nc == ncpus) {
 271
 272                                 # This test fits into the current batch.
 273                                 done[i] = batch;
 274                                 nc -= cpus[i];
 275                                 if (nc <= 0)
 276                                         break; # Too-big test in its own batch.
 277                         }
 278                 }
 279         }
 280
 281         # Dump out the tests in batch order.
 282         for (b = 1; b <= batch; b++)
 283                 for (i = 0; i < njobs; i++)
 284                         if (done[i] == b)
 285                                 print cf[i], cpus[i];
 286 }'
 287
 288 # Generate a script to execute the tests in appropriate batches.
 289 cat << ___EOF___ > $T/script
 290 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
 291 KVM="$KVM"; export KVM
 292 PATH="$PATH"; export PATH
 293 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 294 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 295 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 296 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
 297 TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
 298 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 299 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 300 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 301 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 302 TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
 303 TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
 304 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 305 if ! test -e $resdir
 306 then
 307         mkdir -p "$resdir" || :
 308 fi
 309 mkdir $resdir/$ds
 310 echo Results directory: $resdir/$ds
 311 echo $scriptname $args
 312 touch $resdir/$ds/log
 313 echo $scriptname $args >> $resdir/$ds/log
 314 echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
 315 pwd > $resdir/$ds/testid.txt
 316 if test -d .git
 317 then
 318         git status >> $resdir/$ds/testid.txt
 319         git rev-parse HEAD >> $resdir/$ds/testid.txt
 320         git diff HEAD >> $resdir/$ds/testid.txt
 321 fi
 322 ___EOF___
 323 awk < $T/cfgcpu.pack \
 324         -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
 325         -v CONFIGDIR="$CONFIGFRAG/" \
 326         -v KVM="$KVM" \
 327         -v ncpus=$cpus \
 328         -v jitter="$jitter" \
 329         -v rd=$resdir/$ds/ \
 330         -v dur=$dur \
 331         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 332         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 333 'BEGIN {
 334         i = 0;
 335 }
 336
 337 {
 338         cf[i] = $1;
 339         cpus[i] = $2;
 340         i++;
 341 }
 342
 343 # Dump out the scripting required to run one test batch.
 344 function dump(first, pastlast, batchnum)
 345 {
 346         print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
 347         print "needqemurun="
 348         jn=1
 349         for (j = first; j < pastlast; j++) {
 350                 builddir=KVM "/b1"
 351                 cpusr[jn] = cpus[j];
 352                 if (cfrep[cf[j]] == "") {
 353                         cfr[jn] = cf[j];
 354                         cfrep[cf[j]] = 1;
 355                 } else {
 356                         cfrep[cf[j]]++;
 357                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 358                 }
 359                 if (cpusr[jn] > ncpus && ncpus != 0)
 360                         ovf = "-ovf";
 361                 else
 362                         ovf = "";
 363                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
 364                 print "rm -f " builddir ".*";
 365                 print "touch " builddir ".wait";
 366                 print "mkdir " builddir " > /dev/null 2>&1 || :";
 367                 print "mkdir " rd cfr[jn] " || :";
 368                 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 &"
 369                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
 370                 print "while test -f " builddir ".wait"
 371                 print "do"
 372                 print "\tsleep 1"
 373                 print "done"
 374                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
 375                 jn++;
 376         }
 377         for (j = 1; j < jn; j++) {
 378                 builddir=KVM "/b" j
 379                 print "rm -f " builddir ".ready"
 380                 print "if test -f \"" rd cfr[j] "/builtkernel\""
 381                 print "then"
 382                 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
 383                 print "\tneedqemurun=1"
 384                 print "fi"
 385         }
 386         njitter = 0;
 387         split(jitter, ja);
 388         if (ja[1] == -1 && ncpus == 0)
 389                 njitter = 1;
 390         else if (ja[1] == -1)
 391                 njitter = ncpus;
 392         else
 393                 njitter = ja[1];
 394         if (TORTURE_BUILDONLY && njitter != 0) {
 395                 njitter = 0;
 396                 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
 397         }
 398         if (TORTURE_BUILDONLY) {
 399                 print "needqemurun="
 400         }
 401         print "if test -n \"$needqemurun\""
 402         print "then"
 403         print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
 404         for (j = 0; j < njitter; j++)
 405                 print "\tjitter.sh " j " " dur " " ja[2] " " ja[3] "&"
 406         print "\twait"
 407         print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
 408         print "else"
 409         print "\twait"
 410         print "\techo ---- No kernel runs. `date` | tee -a " rd "log";
 411         print "fi"
 412         for (j = 1; j < jn; j++) {
 413                 builddir=KVM "/b" j
 414                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";
 415                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out | tee -a " rd "log";
 416         }
 417 }
 418
 419 END {
 420         njobs = i;
 421         nc = ncpus;
 422         first = 0;
 423         batchnum = 1;
 424
 425         # Each pass through the following loop considers one test.
 426         for (i = 0; i < njobs; i++) {
 427                 if (ncpus == 0) {
 428                         # Sequential test specified, each test its own batch.
 429                         dump(i, i + 1, batchnum);
 430                         first = i;
 431                         batchnum++;
 432                 } else if (nc < cpus[i] && i != 0) {
 433                         # Out of CPUs, dump out a batch.
 434                         dump(first, i, batchnum);
 435                         first = i;
 436                         nc = ncpus;
 437                         batchnum++;
 438                 }
 439                 # Account for the CPUs needed by the current test.
 440                 nc -= cpus[i];
 441         }
 442         # Dump the last batch.
 443         if (ncpus != 0)
 444                 dump(first, i, batchnum);
 445 }' >> $T/script
 446
 447 cat << ___EOF___ >> $T/script
 448 echo
 449 echo
 450 echo " --- `date` Test summary:"
 451 echo Results directory: $resdir/$ds
 452 kvm-recheck.sh $resdir/$ds
 453 ___EOF___
 454
 455 if test "$dryrun" = script
 456 then
 457         cat $T/script
 458         exit 0
 459 elif test "$dryrun" = sched
 460 then
 461         # Extract the test run schedule from the script.
 462         egrep 'Start batch|Starting build\.' $T/script |
 463                 grep -v ">>" |
 464                 sed -e 's/:.*$//' -e 's/^echo //'
 465         exit 0
 466 else
 467         # Not a dryrun, so run the script.
 468         sh $T/script
 469 fi
 470
 471 # 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