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