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 $T
  36
  37 dur=30
  38 dryrun=""
  39 KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
  40 PATH=${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
  52 . functions.sh
  53
  54 usage () {
  55         echo "Usage: $scriptname optional arguments:"
  56         echo "       --bootargs kernel-boot-arguments"
  57         echo "       --bootimage relative-path-to-kernel-boot-image"
  58         echo "       --buildonly"
  59         echo "       --configs \"config-file list w/ repeat factor (3*TINY01)\""
  60         echo "       --cpus N"
  61         echo "       --datestamp string"
  62         echo "       --defconfig string"
  63         echo "       --dryrun sched|script"
  64         echo "       --duration minutes"
  65         echo "       --interactive"
  66         echo "       --kmake-arg kernel-make-arguments"
  67         echo "       --mac nn:nn:nn:nn:nn:nn"
  68         echo "       --no-initrd"
  69         echo "       --qemu-args qemu-system-..."
  70         echo "       --qemu-cmd qemu-system-..."
  71         echo "       --results absolute-pathname"
  72         echo "       --torture rcu"
  73         exit 1
  74 }
  75
  76 while test $# -gt 0
  77 do
  78         case "$1" in
  79         --bootargs|--bootarg)
  80                 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
  81                 TORTURE_BOOTARGS="$2"
  82                 shift
  83                 ;;
  84         --bootimage)
  85                 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
  86                 TORTURE_BOOT_IMAGE="$2"
  87                 shift
  88                 ;;
  89         --buildonly)
  90                 TORTURE_BUILDONLY=1
  91                 ;;
  92         --configs|--config)
  93                 checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
  94                 configs="$2"
  95                 shift
  96                 ;;
  97         --cpus)
  98                 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
  99                 cpus=$2
 100                 shift
 101                 ;;
 102         --datestamp)
 103                 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
 104                 ds=$2
 105                 shift
 106                 ;;
 107         --defconfig)
 108                 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
 109                 TORTURE_DEFCONFIG=$2
 110                 shift
 111                 ;;
 112         --dryrun)
 113                 checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
 114                 dryrun=$2
 115                 shift
 116                 ;;
 117         --duration)
 118                 checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
 119                 dur=$2
 120                 shift
 121                 ;;
 122         --interactive)
 123                 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
 124                 ;;
 125         --kmake-arg)
 126                 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
 127                 TORTURE_KMAKE_ARG="$2"
 128                 shift
 129                 ;;
 130         --mac)
 131                 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
 132                 TORTURE_QEMU_MAC=$2
 133                 shift
 134                 ;;
 135         --no-initrd)
 136                 TORTURE_INITRD=""; export TORTURE_INITRD
 137                 ;;
 138         --qemu-args|--qemu-arg)
 139                 checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error'
 140                 TORTURE_QEMU_ARG="$2"
 141                 shift
 142                 ;;
 143         --qemu-cmd)
 144                 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
 145                 TORTURE_QEMU_CMD="$2"
 146                 shift
 147                 ;;
 148         --results)
 149                 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 150                 resdir=$2
 151                 shift
 152                 ;;
 153         --shutdown-grace)
 154                 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
 155                 TORTURE_SHUTDOWN_GRACE=$2
 156                 shift
 157                 ;;
 158         --torture)
 159                 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\)$' '^--'
 160                 TORTURE_SUITE=$2
 161                 shift
 162                 ;;
 163         *)
 164                 echo Unknown argument $1
 165                 usage
 166                 ;;
 167         esac
 168         shift
 169 done
 170
 171 CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 172
 173 if test -z "$configs"
 174 then
 175         configs="`cat $CONFIGFRAG/CFLIST`"
 176 fi
 177
 178 if test -z "$resdir"
 179 then
 180         resdir=$KVM/res
 181 fi
 182
 183 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
 184 touch $T/cfgcpu
 185 for CF in $configs
 186 do
 187         case $CF in
 188         [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
 189                 config_reps=`echo $CF | sed -e 's/\*.*$//'`
 190                 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 191                 ;;
 192         *)
 193                 config_reps=1
 194                 CF1=$CF
 195                 ;;
 196         esac
 197         if test -f "$CONFIGFRAG/$CF1"
 198         then
 199                 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
 200                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 201                 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
 202                 do
 203                         echo $CF1 $cpu_count >> $T/cfgcpu
 204                 done
 205         else
 206                 echo "The --configs file $CF1 does not exist, terminating."
 207                 exit 1
 208         fi
 209 done
 210 sort -k2nr $T/cfgcpu > $T/cfgcpu.sort
 211
 212 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 213 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 214 BEGIN {
 215         njobs = 0;
 216 }
 217
 218 {
 219         # Read file of tests and corresponding required numbers of CPUs.
 220         cf[njobs] = $1;
 221         cpus[njobs] = $2;
 222         njobs++;
 223 }
 224
 225 END {
 226         alldone = 0;
 227         batch = 0;
 228         nc = -1;
 229
 230         # Each pass through the following loop creates on test batch
 231         # that can be executed concurrently given ncpus.  Note that a
 232         # given test that requires more than the available CPUs will run in
 233         # their own batch.  Such tests just have to make do with what
 234         # is available.
 235         while (nc != ncpus) {
 236                 batch++;
 237                 nc = ncpus;
 238
 239                 # Each pass through the following loop considers one
 240                 # test for inclusion in the current batch.
 241                 for (i = 0; i < njobs; i++) {
 242                         if (done[i])
 243                                 continue; # Already part of a batch.
 244                         if (nc >= cpus[i] || nc == ncpus) {
 245
 246                                 # This test fits into the current batch.
 247                                 done[i] = batch;
 248                                 nc -= cpus[i];
 249                                 if (nc <= 0)
 250                                         break; # Too-big test in its own batch.
 251                         }
 252                 }
 253         }
 254
 255         # Dump out the tests in batch order.
 256         for (b = 1; b <= batch; b++)
 257                 for (i = 0; i < njobs; i++)
 258                         if (done[i] == b)
 259                                 print cf[i], cpus[i];
 260 }'
 261
 262 # Generate a script to execute the tests in appropriate batches.
 263 cat << ___EOF___ > $T/script
 264 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
 265 KVM="$KVM"; export KVM
 266 PATH="$PATH"; export PATH
 267 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 268 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 269 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 270 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
 271 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 272 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 273 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 274 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 275 TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
 276 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 277 if ! test -e $resdir
 278 then
 279         mkdir -p "$resdir" || :
 280 fi
 281 mkdir $resdir/$ds
 282 echo Results directory: $resdir/$ds
 283 echo $scriptname $args
 284 touch $resdir/$ds/log
 285 echo $scriptname $args >> $resdir/$ds/log
 286 echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
 287 pwd > $resdir/$ds/testid.txt
 288 if test -d .git
 289 then
 290         git status >> $resdir/$ds/testid.txt
 291         git rev-parse HEAD >> $resdir/$ds/testid.txt
 292         if ! git diff HEAD > $T/git-diff 2>&1
 293         then
 294                 cp $T/git-diff $resdir/$ds
 295         fi
 296 fi
 297 ___EOF___
 298 awk < $T/cfgcpu.pack \
 299         -v CONFIGDIR="$CONFIGFRAG/" \
 300         -v KVM="$KVM" \
 301         -v ncpus=$cpus \
 302         -v rd=$resdir/$ds/ \
 303         -v dur=$dur \
 304         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 305         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 306 'BEGIN {
 307         i = 0;
 308 }
 309
 310 {
 311         cf[i] = $1;
 312         cpus[i] = $2;
 313         i++;
 314 }
 315
 316 # Dump out the scripting required to run one test batch.
 317 function dump(first, pastlast, batchnum)
 318 {
 319         print "echo ----Start batch " batchnum ": `date`";
 320         print "echo ----Start batch " batchnum ": `date` >> " rd "/log";
 321         jn=1
 322         for (j = first; j < pastlast; j++) {
 323                 builddir=KVM "/b" jn
 324                 cpusr[jn] = cpus[j];
 325                 if (cfrep[cf[j]] == "") {
 326                         cfr[jn] = cf[j];
 327                         cfrep[cf[j]] = 1;
 328                 } else {
 329                         cfrep[cf[j]]++;
 330                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 331                 }
 332                 if (cpusr[jn] > ncpus && ncpus != 0)
 333                         ovf = "-ovf";
 334                 else
 335                         ovf = "";
 336                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";
 337                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log";
 338                 print "rm -f " builddir ".*";
 339                 print "touch " builddir ".wait";
 340                 print "mkdir " builddir " > /dev/null 2>&1 || :";
 341                 print "mkdir " rd cfr[jn] " || :";
 342                 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 &"
 343                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`";
 344                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log";
 345                 print "while test -f " builddir ".wait"
 346                 print "do"
 347                 print "\tsleep 1"
 348                 print "done"
 349                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`";
 350                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log";
 351                 jn++;
 352         }
 353         for (j = 1; j < jn; j++) {
 354                 builddir=KVM "/b" j
 355                 print "rm -f " builddir ".ready"
 356                 print "if test -z \"$TORTURE_BUILDONLY\""
 357                 print "then"
 358                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`";
 359                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date` >> " rd "/log";
 360                 print "fi"
 361         }
 362         print "wait"
 363         print "if test -z \"$TORTURE_BUILDONLY\""
 364         print "then"
 365         print "\techo ---- All kernel runs complete. `date`";
 366         print "\techo ---- All kernel runs complete. `date` >> " rd "/log";
 367         print "fi"
 368         for (j = 1; j < jn; j++) {
 369                 builddir=KVM "/b" j
 370                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:";
 371                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log";
 372                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out";
 373                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out >> " rd "/log";
 374         }
 375 }
 376
 377 END {
 378         njobs = i;
 379         nc = ncpus;
 380         first = 0;
 381         batchnum = 1;
 382
 383         # Each pass through the following loop considers one test.
 384         for (i = 0; i < njobs; i++) {
 385                 if (ncpus == 0) {
 386                         # Sequential test specified, each test its own batch.
 387                         dump(i, i + 1, batchnum);
 388                         first = i;
 389                         batchnum++;
 390                 } else if (nc < cpus[i] && i != 0) {
 391                         # Out of CPUs, dump out a batch.
 392                         dump(first, i, batchnum);
 393                         first = i;
 394                         nc = ncpus;
 395                         batchnum++;
 396                 }
 397                 # Account for the CPUs needed by the current test.
 398                 nc -= cpus[i];
 399         }
 400         # Dump the last batch.
 401         if (ncpus != 0)
 402                 dump(first, i, batchnum);
 403 }' >> $T/script
 404
 405 cat << ___EOF___ >> $T/script
 406 echo
 407 echo
 408 echo " --- `date` Test summary:"
 409 echo Results directory: $resdir/$ds
 410 kvm-recheck.sh $resdir/$ds
 411 ___EOF___
 412
 413 if test "$dryrun" = script
 414 then
 415         cat $T/script
 416         exit 0
 417 elif test "$dryrun" = sched
 418 then
 419         # Extract the test run schedule from the script.
 420         egrep 'Start batch|Starting build\.' $T/script |
 421                 grep -v ">>" |
 422                 sed -e 's/:.*$//' -e 's/^echo //'
 423         exit 0
 424 else
 425         # Not a dryrun, so run the script.
 426         sh $T/script
 427 fi
 428
 429 # 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