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