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_SUITE=rcu
  46 resdir=""
  47 configs=""
  48 cpus=0
  49 ds=`date +%Y.%m.%d-%H:%M:%S`
  50
  51 . functions.sh
  52
  53 usage () {
  54         echo "Usage: $scriptname optional arguments:"
  55         echo "       --bootargs kernel-boot-arguments"
  56         echo "       --bootimage relative-path-to-kernel-boot-image"
  57         echo "       --buildonly"
  58         echo "       --configs \"config-file list\""
  59         echo "       --cpus N"
  60         echo "       --datestamp string"
  61         echo "       --defconfig string"
  62         echo "       --dryrun sched|script"
  63         echo "       --duration minutes"
  64         echo "       --interactive"
  65         echo "       --kmake-arg kernel-make-arguments"
  66         echo "       --mac nn:nn:nn:nn:nn:nn"
  67         echo "       --no-initrd"
  68         echo "       --qemu-args qemu-system-..."
  69         echo "       --qemu-cmd qemu-system-..."
  70         echo "       --results absolute-pathname"
  71         echo "       --torture rcu"
  72         exit 1
  73 }
  74
  75 while test $# -gt 0
  76 do
  77         case "$1" in
  78         --bootargs)
  79                 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
  80                 TORTURE_BOOTARGS="$2"
  81                 shift
  82                 ;;
  83         --bootimage)
  84                 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
  85                 TORTURE_BOOT_IMAGE="$2"
  86                 shift
  87                 ;;
  88         --buildonly)
  89                 TORTURE_BUILDONLY=1
  90                 ;;
  91         --configs)
  92                 checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
  93                 configs="$2"
  94                 shift
  95                 ;;
  96         --cpus)
  97                 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
  98                 cpus=$2
  99                 shift
 100                 ;;
 101         --datestamp)
 102                 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
 103                 ds=$2
 104                 shift
 105                 ;;
 106         --defconfig)
 107                 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
 108                 TORTURE_DEFCONFIG=$2
 109                 shift
 110                 ;;
 111         --dryrun)
 112                 checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
 113                 dryrun=$2
 114                 shift
 115                 ;;
 116         --duration)
 117                 checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
 118                 dur=$2
 119                 shift
 120                 ;;
 121         --interactive)
 122                 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
 123                 ;;
 124         --kmake-arg)
 125                 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
 126                 TORTURE_KMAKE_ARG="$2"
 127                 shift
 128                 ;;
 129         --mac)
 130                 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
 131                 TORTURE_QEMU_MAC=$2
 132                 shift
 133                 ;;
 134         --no-initrd)
 135                 TORTURE_INITRD=""; export TORTURE_INITRD
 136                 ;;
 137         --qemu-args)
 138                 checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error'
 139                 TORTURE_QEMU_ARG="$2"
 140                 shift
 141                 ;;
 142         --qemu-cmd)
 143                 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
 144                 TORTURE_QEMU_CMD="$2"
 145                 shift
 146                 ;;
 147         --results)
 148                 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 149                 resdir=$2
 150                 shift
 151                 ;;
 152         --torture)
 153                 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\)$' '^--'
 154                 TORTURE_SUITE=$2
 155                 shift
 156                 ;;
 157         *)
 158                 echo Unknown argument $1
 159                 usage
 160                 ;;
 161         esac
 162         shift
 163 done
 164
 165 CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 166
 167 if test -z "$configs"
 168 then
 169         configs="`cat $CONFIGFRAG/CFLIST`"
 170 fi
 171
 172 if test -z "$resdir"
 173 then
 174         resdir=$KVM/res
 175 fi
 176
 177 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
 178 touch $T/cfgcpu
 179 for CF in $configs
 180 do
 181         if test -f "$CONFIGFRAG/$CF"
 182         then
 183                 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF`
 184                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF" "$cpu_count"`
 185                 echo $CF $cpu_count >> $T/cfgcpu
 186         else
 187                 echo "The --configs file $CF does not exist, terminating."
 188                 exit 1
 189         fi
 190 done
 191 sort -k2nr $T/cfgcpu > $T/cfgcpu.sort
 192
 193 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 194 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 195 BEGIN {
 196         njobs = 0;
 197 }
 198
 199 {
 200         # Read file of tests and corresponding required numbers of CPUs.
 201         cf[njobs] = $1;
 202         cpus[njobs] = $2;
 203         njobs++;
 204 }
 205
 206 END {
 207         alldone = 0;
 208         batch = 0;
 209         nc = -1;
 210
 211         # Each pass through the following loop creates on test batch
 212         # that can be executed concurrently given ncpus.  Note that a
 213         # given test that requires more than the available CPUs will run in
 214         # their own batch.  Such tests just have to make do with what
 215         # is available.
 216         while (nc != ncpus) {
 217                 batch++;
 218                 nc = ncpus;
 219
 220                 # Each pass through the following loop considers one
 221                 # test for inclusion in the current batch.
 222                 for (i = 0; i < njobs; i++) {
 223                         if (done[i])
 224                                 continue; # Already part of a batch.
 225                         if (nc >= cpus[i] || nc == ncpus) {
 226
 227                                 # This test fits into the current batch.
 228                                 done[i] = batch;
 229                                 nc -= cpus[i];
 230                                 if (nc <= 0)
 231                                         break; # Too-big test in its own batch.
 232                         }
 233                 }
 234         }
 235
 236         # Dump out the tests in batch order.
 237         for (b = 1; b <= batch; b++)
 238                 for (i = 0; i < njobs; i++)
 239                         if (done[i] == b)
 240                                 print cf[i], cpus[i];
 241 }'
 242
 243 # Generate a script to execute the tests in appropriate batches.
 244 cat << ___EOF___ > $T/script
 245 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
 246 KVM="$KVM"; export KVM
 247 PATH="$PATH"; export PATH
 248 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 249 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 250 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 251 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
 252 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 253 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 254 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 255 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 256 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 257 if ! test -e $resdir
 258 then
 259         mkdir -p "$resdir" || :
 260 fi
 261 mkdir $resdir/$ds
 262 echo Results directory: $resdir/$ds
 263 echo $scriptname $args
 264 touch $resdir/$ds/log
 265 echo $scriptname $args >> $resdir/$ds/log
 266 echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
 267 pwd > $resdir/$ds/testid.txt
 268 if test -d .git
 269 then
 270         git status >> $resdir/$ds/testid.txt
 271         git rev-parse HEAD >> $resdir/$ds/testid.txt
 272         if ! git diff HEAD > $T/git-diff 2>&1
 273         then
 274                 cp $T/git-diff $resdir/$ds
 275         fi
 276 fi
 277 ___EOF___
 278 awk < $T/cfgcpu.pack \
 279         -v CONFIGDIR="$CONFIGFRAG/" \
 280         -v KVM="$KVM" \
 281         -v ncpus=$cpus \
 282         -v rd=$resdir/$ds/ \
 283         -v dur=$dur \
 284         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 285         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 286 'BEGIN {
 287         i = 0;
 288 }
 289
 290 {
 291         cf[i] = $1;
 292         cpus[i] = $2;
 293         i++;
 294 }
 295
 296 # Dump out the scripting required to run one test batch.
 297 function dump(first, pastlast)
 298 {
 299         print "echo ----Start batch: `date`";
 300         print "echo ----Start batch: `date` >> " rd "/log";
 301         jn=1
 302         for (j = first; j < pastlast; j++) {
 303                 builddir=KVM "/b" jn
 304                 cpusr[jn] = cpus[j];
 305                 if (cfrep[cf[j]] == "") {
 306                         cfr[jn] = cf[j];
 307                         cfrep[cf[j]] = 1;
 308                 } else {
 309                         cfrep[cf[j]]++;
 310                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 311                 }
 312                 if (cpusr[jn] > ncpus && ncpus != 0)
 313                         ovf = "(!)";
 314                 else
 315                         ovf = "";
 316                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";
 317                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log";
 318                 print "rm -f " builddir ".*";
 319                 print "touch " builddir ".wait";
 320                 print "mkdir " builddir " > /dev/null 2>&1 || :";
 321                 print "mkdir " rd cfr[jn] " || :";
 322                 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 &"
 323                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`";
 324                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log";
 325                 print "while test -f " builddir ".wait"
 326                 print "do"
 327                 print "\tsleep 1"
 328                 print "done"
 329                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`";
 330                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log";
 331                 jn++;
 332         }
 333         for (j = 1; j < jn; j++) {
 334                 builddir=KVM "/b" j
 335                 print "rm -f " builddir ".ready"
 336                 print "if test -z \"$TORTURE_BUILDONLY\""
 337                 print "then"
 338                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`";
 339                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date` >> " rd "/log";
 340                 print "fi"
 341         }
 342         print "wait"
 343         print "if test -z \"$TORTURE_BUILDONLY\""
 344         print "then"
 345         print "\techo ---- All kernel runs complete. `date`";
 346         print "\techo ---- All kernel runs complete. `date` >> " rd "/log";
 347         print "fi"
 348         for (j = 1; j < jn; j++) {
 349                 builddir=KVM "/b" j
 350                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:";
 351                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log";
 352                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out";
 353                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out >> " rd "/log";
 354         }
 355 }
 356
 357 END {
 358         njobs = i;
 359         nc = ncpus;
 360         first = 0;
 361
 362         # Each pass through the following loop considers one test.
 363         for (i = 0; i < njobs; i++) {
 364                 if (ncpus == 0) {
 365                         # Sequential test specified, each test its own batch.
 366                         dump(i, i + 1);
 367                         first = i;
 368                 } else if (nc < cpus[i] && i != 0) {
 369                         # Out of CPUs, dump out a batch.
 370                         dump(first, i);
 371                         first = i;
 372                         nc = ncpus;
 373                 }
 374                 # Account for the CPUs needed by the current test.
 375                 nc -= cpus[i];
 376         }
 377         # Dump the last batch.
 378         if (ncpus != 0)
 379                 dump(first, i);
 380 }' >> $T/script
 381
 382 cat << ___EOF___ >> $T/script
 383 echo
 384 echo
 385 echo " --- `date` Test summary:"
 386 echo Results directory: $resdir/$ds
 387 kvm-recheck.sh $resdir/$ds
 388 ___EOF___
 389
 390 if test "$dryrun" = script
 391 then
 392         cat $T/script
 393         exit 0
 394 elif test "$dryrun" = sched
 395 then
 396         # Extract the test run schedule from the script.
 397         egrep 'Start batch|Starting build\.' $T/script |
 398                 grep -v ">>" |
 399                 sed -e 's/:.*$//' -e 's/^echo //'
 400         exit 0
 401 else
 402         # Not a dryrun, so run the script.
 403         sh $T/script
 404 fi
 405
 406 # 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