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=${TMPDIR-/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_KCONFIG_ARG=""
  45 TORTURE_KMAKE_ARG=""
  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 "       --no-initrd"
  73         echo "       --qemu-args qemu-system-..."
  74         echo "       --qemu-cmd qemu-system-..."
  75         echo "       --results absolute-pathname"
  76         echo "       --torture rcu"
  77         exit 1
  78 }
  79
  80 while test $# -gt 0
  81 do
  82         case "$1" in
  83         --bootargs|--bootarg)
  84                 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
  85                 TORTURE_BOOTARGS="$2"
  86                 shift
  87                 ;;
  88         --bootimage)
  89                 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
  90                 TORTURE_BOOT_IMAGE="$2"
  91                 shift
  92                 ;;
  93         --buildonly)
  94                 TORTURE_BUILDONLY=1
  95                 ;;
  96         --configs|--config)
  97                 checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
  98                 configs="$2"
  99                 shift
 100                 ;;
 101         --cpus)
 102                 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
 103                 cpus=$2
 104                 shift
 105                 ;;
 106         --datestamp)
 107                 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
 108                 ds=$2
 109                 shift
 110                 ;;
 111         --defconfig)
 112                 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
 113                 TORTURE_DEFCONFIG=$2
 114                 shift
 115                 ;;
 116         --dryrun)
 117                 checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
 118                 dryrun=$2
 119                 shift
 120                 ;;
 121         --duration)
 122                 checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
 123                 dur=$(($2*60))
 124                 shift
 125                 ;;
 126         --interactive)
 127                 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
 128                 ;;
 129         --jitter)
 130                 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
 131                 jitter="$2"
 132                 shift
 133                 ;;
 134         --kconfig)
 135                 checkarg --kconfig "(Kconfig options)" $# "$2" '^CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\( CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\)*$' '^error$'
 136                 TORTURE_KCONFIG_ARG="$2"
 137                 shift
 138                 ;;
 139         --kmake-arg)
 140                 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
 141                 TORTURE_KMAKE_ARG="$2"
 142                 shift
 143                 ;;
 144         --mac)
 145                 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
 146                 TORTURE_QEMU_MAC=$2
 147                 shift
 148                 ;;
 149         --no-initrd)
 150                 TORTURE_INITRD=""; export TORTURE_INITRD
 151                 ;;
 152         --qemu-args|--qemu-arg)
 153                 checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error'
 154                 TORTURE_QEMU_ARG="$2"
 155                 shift
 156                 ;;
 157         --qemu-cmd)
 158                 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
 159                 TORTURE_QEMU_CMD="$2"
 160                 shift
 161                 ;;
 162         --results)
 163                 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 164                 resdir=$2
 165                 shift
 166                 ;;
 167         --shutdown-grace)
 168                 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
 169                 TORTURE_SHUTDOWN_GRACE=$2
 170                 shift
 171                 ;;
 172         --torture)
 173                 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuperf\)$' '^--'
 174                 TORTURE_SUITE=$2
 175                 shift
 176                 ;;
 177         *)
 178                 echo Unknown argument $1
 179                 usage
 180                 ;;
 181         esac
 182         shift
 183 done
 184
 185 CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 186
 187 if test -z "$configs"
 188 then
 189         configs="`cat $CONFIGFRAG/CFLIST`"
 190 fi
 191
 192 if test -z "$resdir"
 193 then
 194         resdir=$KVM/res
 195 fi
 196
 197 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
 198 touch $T/cfgcpu
 199 for CF in $configs
 200 do
 201         case $CF in
 202         [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
 203                 config_reps=`echo $CF | sed -e 's/\*.*$//'`
 204                 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 205                 ;;
 206         *)
 207                 config_reps=1
 208                 CF1=$CF
 209                 ;;
 210         esac
 211         if test -f "$CONFIGFRAG/$CF1"
 212         then
 213                 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
 214                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 215                 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$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 $T/cfgcpu -T="$T" > $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_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`";
 335         print "echo ----Start batch " batchnum ": `date` >> " rd "/log";
 336         print "needqemurun="
 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 -f \"" rd cfr[j] "/builtkernel\""
 373                 print "then"
 374                 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date`";
 375                 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` >> " rd "/log";
 376                 print "\tneedqemurun=1"
 377                 print "fi"
 378         }
 379         njitter = 0;
 380         split(jitter, ja);
 381         if (ja[1] == -1 && ncpus == 0)
 382                 njitter = 1;
 383         else if (ja[1] == -1)
 384                 njitter = ncpus;
 385         else
 386                 njitter = ja[1];
 387         if (TORTURE_BUILDONLY && njitter != 0) {
 388                 njitter = 0;
 389                 print "echo Build-only run, so suppressing jitter >> " rd "/log"
 390         }
 391         if (TORTURE_BUILDONLY) {
 392                 print "needqemurun="
 393         }
 394         print "if test -n \"$needqemurun\""
 395         print "then"
 396         print "\techo ---- Starting kernels. `date`";
 397         print "\techo ---- Starting kernels. `date` >> " rd "/log";
 398         for (j = 0; j < njitter; j++)
 399                 print "\tjitter.sh " j " " dur " " ja[2] " " ja[3] "&"
 400         print "\twait"
 401         print "\techo ---- All kernel runs complete. `date`";
 402         print "\techo ---- All kernel runs complete. `date` >> " rd "/log";
 403         print "else"
 404         print "\twait"
 405         print "\techo ---- No kernel runs. `date`";
 406         print "\techo ---- No kernel runs. `date` >> " rd "/log";
 407         print "fi"
 408         for (j = 1; j < jn; j++) {
 409                 builddir=KVM "/b" j
 410                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:";
 411                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log";
 412                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out";
 413                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out >> " rd "/log";
 414         }
 415 }
 416
 417 END {
 418         njobs = i;
 419         nc = ncpus;
 420         first = 0;
 421         batchnum = 1;
 422
 423         # Each pass through the following loop considers one test.
 424         for (i = 0; i < njobs; i++) {
 425                 if (ncpus == 0) {
 426                         # Sequential test specified, each test its own batch.
 427                         dump(i, i + 1, batchnum);
 428                         first = i;
 429                         batchnum++;
 430                 } else if (nc < cpus[i] && i != 0) {
 431                         # Out of CPUs, dump out a batch.
 432                         dump(first, i, batchnum);
 433                         first = i;
 434                         nc = ncpus;
 435                         batchnum++;
 436                 }
 437                 # Account for the CPUs needed by the current test.
 438                 nc -= cpus[i];
 439         }
 440         # Dump the last batch.
 441         if (ncpus != 0)
 442                 dump(first, i, batchnum);
 443 }' >> $T/script
 444
 445 cat << ___EOF___ >> $T/script
 446 echo
 447 echo
 448 echo " --- `date` Test summary:"
 449 echo Results directory: $resdir/$ds
 450 kvm-recheck.sh $resdir/$ds
 451 ___EOF___
 452
 453 if test "$dryrun" = script
 454 then
 455         cat $T/script
 456         exit 0
 457 elif test "$dryrun" = sched
 458 then
 459         # Extract the test run schedule from the script.
 460         egrep 'Start batch|Starting build\.' $T/script |
 461                 grep -v ">>" |
 462                 sed -e 's/:.*$//' -e 's/^echo //'
 463         exit 0
 464 else
 465         # Not a dryrun, so run the script.
 466         sh $T/script
 467 fi
 468
 469 # 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