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.
   5 #
   6 # Edit the definitions below to set the locations of the various directories,
   7 # as well as the test duration.
   8 #
   9 # Usage: kvm.sh [ options ]
  10 #
  11 # This program is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 2 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # This program is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program; if not, you can access it online at
  23 # http://www.gnu.org/licenses/gpl-2.0.html.
  24 #
  25 # Copyright (C) IBM Corporation, 2011
  26 #
  27 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
  28
  29 scriptname=$0
  30 args="$*"
  31
  32 T=${TMPDIR-/tmp}/kvm.sh.$$
  33 trap 'rm -rf $T' 0
  34 mkdir $T
  35
  36 cd `dirname $scriptname`/../../../../../
  37
  38 dur=$((30*60))
  39 dryrun=""
  40 KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
  41 PATH=${KVM}/bin:$PATH; export PATH
  42 TORTURE_DEFCONFIG=defconfig
  43 TORTURE_BOOT_IMAGE=""
  44 TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
  45 TORTURE_KCONFIG_ARG=""
  46 TORTURE_KMAKE_ARG=""
  47 TORTURE_SHUTDOWN_GRACE=180
  48 TORTURE_SUITE=rcu
  49 resdir=""
  50 configs=""
  51 cpus=0
  52 ds=`date +%Y.%m.%d-%H:%M:%S`
  53 jitter="-1"
  54
  55 . functions.sh
  56
  57 usage () {
  58         echo "Usage: $scriptname optional arguments:"
  59         echo "       --bootargs kernel-boot-arguments"
  60         echo "       --bootimage relative-path-to-kernel-boot-image"
  61         echo "       --buildonly"
  62         echo "       --configs \"config-file list w/ repeat factor (3*TINY01)\""
  63         echo "       --cpus N"
  64         echo "       --datestamp string"
  65         echo "       --defconfig string"
  66         echo "       --dryrun sched|script"
  67         echo "       --duration minutes"
  68         echo "       --interactive"
  69         echo "       --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
  70         echo "       --kconfig Kconfig-options"
  71         echo "       --kmake-arg kernel-make-arguments"
  72         echo "       --mac nn:nn:nn:nn:nn:nn"
  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         --no-initrd)
 151                 TORTURE_INITRD=""; export TORTURE_INITRD
 152                 ;;
 153         --qemu-args|--qemu-arg)
 154                 checkarg --qemu-args "(qemu arguments)" $# "$2" '^-' '^error'
 155                 TORTURE_QEMU_ARG="$2"
 156                 shift
 157                 ;;
 158         --qemu-cmd)
 159                 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
 160                 TORTURE_QEMU_CMD="$2"
 161                 shift
 162                 ;;
 163         --results)
 164                 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 165                 resdir=$2
 166                 shift
 167                 ;;
 168         --shutdown-grace)
 169                 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
 170                 TORTURE_SHUTDOWN_GRACE=$2
 171                 shift
 172                 ;;
 173         --torture)
 174                 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuperf\)$' '^--'
 175                 TORTURE_SUITE=$2
 176                 shift
 177                 ;;
 178         *)
 179                 echo Unknown argument $1
 180                 usage
 181                 ;;
 182         esac
 183         shift
 184 done
 185
 186 CONFIGFRAG=${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                 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 217                 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
 218                 do
 219                         echo $CF1 $cpu_count >> $T/cfgcpu
 220                 done
 221         else
 222                 echo "The --configs file $CF1 does not exist, terminating."
 223                 exit 1
 224         fi
 225 done
 226 sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
 227
 228 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 229 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 230 BEGIN {
 231         njobs = 0;
 232 }
 233
 234 {
 235         # Read file of tests and corresponding required numbers of CPUs.
 236         cf[njobs] = $1;
 237         cpus[njobs] = $2;
 238         njobs++;
 239 }
 240
 241 END {
 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_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
 287 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 288 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 289 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 290 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 291 TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
 292 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 293 if ! test -e $resdir
 294 then
 295         mkdir -p "$resdir" || :
 296 fi
 297 mkdir $resdir/$ds
 298 echo Results directory: $resdir/$ds
 299 echo $scriptname $args
 300 touch $resdir/$ds/log
 301 echo $scriptname $args >> $resdir/$ds/log
 302 echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
 303 pwd > $resdir/$ds/testid.txt
 304 if test -d .git
 305 then
 306         git status >> $resdir/$ds/testid.txt
 307         git rev-parse HEAD >> $resdir/$ds/testid.txt
 308         git diff HEAD >> $resdir/$ds/testid.txt
 309 fi
 310 ___EOF___
 311 awk < $T/cfgcpu.pack \
 312         -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
 313         -v CONFIGDIR="$CONFIGFRAG/" \
 314         -v KVM="$KVM" \
 315         -v ncpus=$cpus \
 316         -v jitter="$jitter" \
 317         -v rd=$resdir/$ds/ \
 318         -v dur=$dur \
 319         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 320         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 321 'BEGIN {
 322         i = 0;
 323 }
 324
 325 {
 326         cf[i] = $1;
 327         cpus[i] = $2;
 328         i++;
 329 }
 330
 331 # Dump out the scripting required to run one test batch.
 332 function dump(first, pastlast, batchnum)
 333 {
 334         print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
 335         print "needqemurun="
 336         jn=1
 337         for (j = first; j < pastlast; j++) {
 338                 builddir=KVM "/b" jn
 339                 cpusr[jn] = cpus[j];
 340                 if (cfrep[cf[j]] == "") {
 341                         cfr[jn] = cf[j];
 342                         cfrep[cf[j]] = 1;
 343                 } else {
 344                         cfrep[cf[j]]++;
 345                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 346                 }
 347                 if (cpusr[jn] > ncpus && ncpus != 0)
 348                         ovf = "-ovf";
 349                 else
 350                         ovf = "";
 351                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
 352                 print "rm -f " builddir ".*";
 353                 print "touch " builddir ".wait";
 354                 print "mkdir " builddir " > /dev/null 2>&1 || :";
 355                 print "mkdir " rd cfr[jn] " || :";
 356                 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 &"
 357                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
 358                 print "while test -f " builddir ".wait"
 359                 print "do"
 360                 print "\tsleep 1"
 361                 print "done"
 362                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
 363                 jn++;
 364         }
 365         for (j = 1; j < jn; j++) {
 366                 builddir=KVM "/b" j
 367                 print "rm -f " builddir ".ready"
 368                 print "if test -f \"" rd cfr[j] "/builtkernel\""
 369                 print "then"
 370                 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
 371                 print "\tneedqemurun=1"
 372                 print "fi"
 373         }
 374         njitter = 0;
 375         split(jitter, ja);
 376         if (ja[1] == -1 && ncpus == 0)
 377                 njitter = 1;
 378         else if (ja[1] == -1)
 379                 njitter = ncpus;
 380         else
 381                 njitter = ja[1];
 382         if (TORTURE_BUILDONLY && njitter != 0) {
 383                 njitter = 0;
 384                 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
 385         }
 386         if (TORTURE_BUILDONLY) {
 387                 print "needqemurun="
 388         }
 389         print "if test -n \"$needqemurun\""
 390         print "then"
 391         print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
 392         for (j = 0; j < njitter; j++)
 393                 print "\tjitter.sh " j " " dur " " ja[2] " " ja[3] "&"
 394         print "\twait"
 395         print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
 396         print "else"
 397         print "\twait"
 398         print "\techo ---- No kernel runs. `date` | tee -a " rd "log";
 399         print "fi"
 400         for (j = 1; j < jn; j++) {
 401                 builddir=KVM "/b" j
 402                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";
 403                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out | tee -a " rd "log";
 404         }
 405 }
 406
 407 END {
 408         njobs = i;
 409         nc = ncpus;
 410         first = 0;
 411         batchnum = 1;
 412
 413         # Each pass through the following loop considers one test.
 414         for (i = 0; i < njobs; i++) {
 415                 if (ncpus == 0) {
 416                         # Sequential test specified, each test its own batch.
 417                         dump(i, i + 1, batchnum);
 418                         first = i;
 419                         batchnum++;
 420                 } else if (nc < cpus[i] && i != 0) {
 421                         # Out of CPUs, dump out a batch.
 422                         dump(first, i, batchnum);
 423                         first = i;
 424                         nc = ncpus;
 425                         batchnum++;
 426                 }
 427                 # Account for the CPUs needed by the current test.
 428                 nc -= cpus[i];
 429         }
 430         # Dump the last batch.
 431         if (ncpus != 0)
 432                 dump(first, i, batchnum);
 433 }' >> $T/script
 434
 435 cat << ___EOF___ >> $T/script
 436 echo
 437 echo
 438 echo " --- `date` Test summary:"
 439 echo Results directory: $resdir/$ds
 440 kvm-recheck.sh $resdir/$ds
 441 ___EOF___
 442
 443 if test "$dryrun" = script
 444 then
 445         cat $T/script
 446         exit 0
 447 elif test "$dryrun" = sched
 448 then
 449         # Extract the test run schedule from the script.
 450         egrep 'Start batch|Starting build\.' $T/script |
 451                 grep -v ">>" |
 452                 sed -e 's/:.*$//' -e 's/^echo //'
 453         exit 0
 454 else
 455         # Not a dryrun, so run the script.
 456         sh $T/script
 457 fi
 458
 459 # 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