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 $1
 191                 usage
 192                 ;;
 193         esac
 194         shift
 195 done
 196
 197 if test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh
 198 then
 199         :
 200 else
 201         echo No initrd and unable to create one, aborting test >&2
 202         exit 1
 203 fi
 204
 205 CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 206
 207 if test -z "$configs"
 208 then
 209         configs="`cat $CONFIGFRAG/CFLIST`"
 210 fi
 211
 212 if test -z "$resdir"
 213 then
 214         resdir=$KVM/res
 215 fi
 216
 217 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
 218 touch $T/cfgcpu
 219 for CF in $configs
 220 do
 221         case $CF in
 222         [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
 223                 config_reps=`echo $CF | sed -e 's/\*.*$//'`
 224                 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 225                 ;;
 226         *)
 227                 config_reps=1
 228                 CF1=$CF
 229                 ;;
 230         esac
 231         if test -f "$CONFIGFRAG/$CF1"
 232         then
 233                 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
 234                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 235                 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 236                 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
 237                 do
 238                         echo $CF1 $cpu_count >> $T/cfgcpu
 239                 done
 240         else
 241                 echo "The --configs file $CF1 does not exist, terminating."
 242                 exit 1
 243         fi
 244 done
 245 sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
 246
 247 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 248 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 249 BEGIN {
 250         njobs = 0;
 251 }
 252
 253 {
 254         # Read file of tests and corresponding required numbers of CPUs.
 255         cf[njobs] = $1;
 256         cpus[njobs] = $2;
 257         njobs++;
 258 }
 259
 260 END {
 261         batch = 0;
 262         nc = -1;
 263
 264         # Each pass through the following loop creates on test batch
 265         # that can be executed concurrently given ncpus.  Note that a
 266         # given test that requires more than the available CPUs will run in
 267         # their own batch.  Such tests just have to make do with what
 268         # is available.
 269         while (nc != ncpus) {
 270                 batch++;
 271                 nc = ncpus;
 272
 273                 # Each pass through the following loop considers one
 274                 # test for inclusion in the current batch.
 275                 for (i = 0; i < njobs; i++) {
 276                         if (done[i])
 277                                 continue; # Already part of a batch.
 278                         if (nc >= cpus[i] || nc == ncpus) {
 279
 280                                 # This test fits into the current batch.
 281                                 done[i] = batch;
 282                                 nc -= cpus[i];
 283                                 if (nc <= 0)
 284                                         break; # Too-big test in its own batch.
 285                         }
 286                 }
 287         }
 288
 289         # Dump out the tests in batch order.
 290         for (b = 1; b <= batch; b++)
 291                 for (i = 0; i < njobs; i++)
 292                         if (done[i] == b)
 293                                 print cf[i], cpus[i];
 294 }'
 295
 296 # Generate a script to execute the tests in appropriate batches.
 297 cat << ___EOF___ > $T/script
 298 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
 299 KVM="$KVM"; export KVM
 300 PATH="$PATH"; export PATH
 301 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 302 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 303 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 304 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
 305 TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
 306 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 307 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 308 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 309 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 310 TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
 311 TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
 312 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 313 if ! test -e $resdir
 314 then
 315         mkdir -p "$resdir" || :
 316 fi
 317 mkdir $resdir/$ds
 318 echo Results directory: $resdir/$ds
 319 echo $scriptname $args
 320 touch $resdir/$ds/log
 321 echo $scriptname $args >> $resdir/$ds/log
 322 echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
 323 pwd > $resdir/$ds/testid.txt
 324 if test -d .git
 325 then
 326         git status >> $resdir/$ds/testid.txt
 327         git rev-parse HEAD >> $resdir/$ds/testid.txt
 328         git diff HEAD >> $resdir/$ds/testid.txt
 329 fi
 330 ___EOF___
 331 awk < $T/cfgcpu.pack \
 332         -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
 333         -v CONFIGDIR="$CONFIGFRAG/" \
 334         -v KVM="$KVM" \
 335         -v ncpus=$cpus \
 336         -v jitter="$jitter" \
 337         -v rd=$resdir/$ds/ \
 338         -v dur=$dur \
 339         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 340         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 341 'BEGIN {
 342         i = 0;
 343 }
 344
 345 {
 346         cf[i] = $1;
 347         cpus[i] = $2;
 348         i++;
 349 }
 350
 351 # Dump out the scripting required to run one test batch.
 352 function dump(first, pastlast, batchnum)
 353 {
 354         print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
 355         print "needqemurun="
 356         jn=1
 357         for (j = first; j < pastlast; j++) {
 358                 builddir=KVM "/b1"
 359                 cpusr[jn] = cpus[j];
 360                 if (cfrep[cf[j]] == "") {
 361                         cfr[jn] = cf[j];
 362                         cfrep[cf[j]] = 1;
 363                 } else {
 364                         cfrep[cf[j]]++;
 365                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 366                 }
 367                 if (cpusr[jn] > ncpus && ncpus != 0)
 368                         ovf = "-ovf";
 369                 else
 370                         ovf = "";
 371                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
 372                 print "rm -f " builddir ".*";
 373                 print "touch " builddir ".wait";
 374                 print "mkdir " builddir " > /dev/null 2>&1 || :";
 375                 print "mkdir " rd cfr[jn] " || :";
 376                 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 &"
 377                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
 378                 print "while test -f " builddir ".wait"
 379                 print "do"
 380                 print "\tsleep 1"
 381                 print "done"
 382                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
 383                 jn++;
 384         }
 385         for (j = 1; j < jn; j++) {
 386                 builddir=KVM "/b" j
 387                 print "rm -f " builddir ".ready"
 388                 print "if test -f \"" rd cfr[j] "/builtkernel\""
 389                 print "then"
 390                 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
 391                 print "\tneedqemurun=1"
 392                 print "fi"
 393         }
 394         njitter = 0;
 395         split(jitter, ja);
 396         if (ja[1] == -1 && ncpus == 0)
 397                 njitter = 1;
 398         else if (ja[1] == -1)
 399                 njitter = ncpus;
 400         else
 401                 njitter = ja[1];
 402         if (TORTURE_BUILDONLY && njitter != 0) {
 403                 njitter = 0;
 404                 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
 405         }
 406         if (TORTURE_BUILDONLY) {
 407                 print "needqemurun="
 408         }
 409         print "if test -n \"$needqemurun\""
 410         print "then"
 411         print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
 412         for (j = 0; j < njitter; j++)
 413                 print "\tjitter.sh " j " " dur " " ja[2] " " ja[3] "&"
 414         print "\twait"
 415         print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
 416         print "else"
 417         print "\twait"
 418         print "\techo ---- No kernel runs. `date` | tee -a " rd "log";
 419         print "fi"
 420         for (j = 1; j < jn; j++) {
 421                 builddir=KVM "/b" j
 422                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";
 423                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out | tee -a " rd "log";
 424         }
 425 }
 426
 427 END {
 428         njobs = i;
 429         nc = ncpus;
 430         first = 0;
 431         batchnum = 1;
 432
 433         # Each pass through the following loop considers one test.
 434         for (i = 0; i < njobs; i++) {
 435                 if (ncpus == 0) {
 436                         # Sequential test specified, each test its own batch.
 437                         dump(i, i + 1, batchnum);
 438                         first = i;
 439                         batchnum++;
 440                 } else if (nc < cpus[i] && i != 0) {
 441                         # Out of CPUs, dump out a batch.
 442                         dump(first, i, batchnum);
 443                         first = i;
 444                         nc = ncpus;
 445                         batchnum++;
 446                 }
 447                 # Account for the CPUs needed by the current test.
 448                 nc -= cpus[i];
 449         }
 450         # Dump the last batch.
 451         if (ncpus != 0)
 452                 dump(first, i, batchnum);
 453 }' >> $T/script
 454
 455 cat << ___EOF___ >> $T/script
 456 echo
 457 echo
 458 echo " --- `date` Test summary:"
 459 echo Results directory: $resdir/$ds
 460 kvm-recheck.sh $resdir/$ds
 461 ___EOF___
 462
 463 if test "$dryrun" = script
 464 then
 465         cat $T/script
 466         exit 0
 467 elif test "$dryrun" = sched
 468 then
 469         # Extract the test run schedule from the script.
 470         egrep 'Start batch|Starting build\.' $T/script |
 471                 grep -v ">>" |
 472                 sed -e 's/:.*$//' -e 's/^echo //'
 473         exit 0
 474 else
 475         # Not a dryrun, so run the script.
 476         sh $T/script
 477 fi
 478
 479 # 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