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 w/ repeat factor (3*TINY01)\""
  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 "$1" in
  78         --bootargs|--bootarg)
  79                 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$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="$2"
  86                 shift
  87                 ;;
  88         --buildonly)
  89                 TORTURE_BUILDONLY=1
  90                 ;;
  91         --configs|--config)
  92                 checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
  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|--qemu-arg)
 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         case $CF in
 182         [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
 183                 config_reps=`echo $CF | sed -e 's/\*.*$//'`
 184                 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 185                 ;;
 186         *)
 187                 config_reps=1
 188                 CF1=$CF
 189                 ;;
 190         esac
 191         if test -f "$CONFIGFRAG/$CF1"
 192         then
 193                 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
 194                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 195                 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
 196                 do
 197                         echo $CF1 $cpu_count >> $T/cfgcpu
 198                 done
 199         else
 200                 echo "The --configs file $CF1 does not exist, terminating."
 201                 exit 1
 202         fi
 203 done
 204 sort -k2nr $T/cfgcpu > $T/cfgcpu.sort
 205
 206 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 207 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 208 BEGIN {
 209         njobs = 0;
 210 }
 211
 212 {
 213         # Read file of tests and corresponding required numbers of CPUs.
 214         cf[njobs] = $1;
 215         cpus[njobs] = $2;
 216         njobs++;
 217 }
 218
 219 END {
 220         alldone = 0;
 221         batch = 0;
 222         nc = -1;
 223
 224         # Each pass through the following loop creates on test batch
 225         # that can be executed concurrently given ncpus.  Note that a
 226         # given test that requires more than the available CPUs will run in
 227         # their own batch.  Such tests just have to make do with what
 228         # is available.
 229         while (nc != ncpus) {
 230                 batch++;
 231                 nc = ncpus;
 232
 233                 # Each pass through the following loop considers one
 234                 # test for inclusion in the current batch.
 235                 for (i = 0; i < njobs; i++) {
 236                         if (done[i])
 237                                 continue; # Already part of a batch.
 238                         if (nc >= cpus[i] || nc == ncpus) {
 239
 240                                 # This test fits into the current batch.
 241                                 done[i] = batch;
 242                                 nc -= cpus[i];
 243                                 if (nc <= 0)
 244                                         break; # Too-big test in its own batch.
 245                         }
 246                 }
 247         }
 248
 249         # Dump out the tests in batch order.
 250         for (b = 1; b <= batch; b++)
 251                 for (i = 0; i < njobs; i++)
 252                         if (done[i] == b)
 253                                 print cf[i], cpus[i];
 254 }'
 255
 256 # Generate a script to execute the tests in appropriate batches.
 257 cat << ___EOF___ > $T/script
 258 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
 259 KVM="$KVM"; export KVM
 260 PATH="$PATH"; export PATH
 261 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 262 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 263 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 264 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
 265 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 266 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 267 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 268 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 269 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 270 if ! test -e $resdir
 271 then
 272         mkdir -p "$resdir" || :
 273 fi
 274 mkdir $resdir/$ds
 275 echo Results directory: $resdir/$ds
 276 echo $scriptname $args
 277 touch $resdir/$ds/log
 278 echo $scriptname $args >> $resdir/$ds/log
 279 echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
 280 pwd > $resdir/$ds/testid.txt
 281 if test -d .git
 282 then
 283         git status >> $resdir/$ds/testid.txt
 284         git rev-parse HEAD >> $resdir/$ds/testid.txt
 285         if ! git diff HEAD > $T/git-diff 2>&1
 286         then
 287                 cp $T/git-diff $resdir/$ds
 288         fi
 289 fi
 290 ___EOF___
 291 awk < $T/cfgcpu.pack \
 292         -v CONFIGDIR="$CONFIGFRAG/" \
 293         -v KVM="$KVM" \
 294         -v ncpus=$cpus \
 295         -v rd=$resdir/$ds/ \
 296         -v dur=$dur \
 297         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 298         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 299 'BEGIN {
 300         i = 0;
 301 }
 302
 303 {
 304         cf[i] = $1;
 305         cpus[i] = $2;
 306         i++;
 307 }
 308
 309 # Dump out the scripting required to run one test batch.
 310 function dump(first, pastlast)
 311 {
 312         print "echo ----Start batch: `date`";
 313         print "echo ----Start batch: `date` >> " rd "/log";
 314         jn=1
 315         for (j = first; j < pastlast; j++) {
 316                 builddir=KVM "/b" jn
 317                 cpusr[jn] = cpus[j];
 318                 if (cfrep[cf[j]] == "") {
 319                         cfr[jn] = cf[j];
 320                         cfrep[cf[j]] = 1;
 321                 } else {
 322                         cfrep[cf[j]]++;
 323                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 324                 }
 325                 if (cpusr[jn] > ncpus && ncpus != 0)
 326                         ovf = "-ovf";
 327                 else
 328                         ovf = "";
 329                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";
 330                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log";
 331                 print "rm -f " builddir ".*";
 332                 print "touch " builddir ".wait";
 333                 print "mkdir " builddir " > /dev/null 2>&1 || :";
 334                 print "mkdir " rd cfr[jn] " || :";
 335                 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 &"
 336                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`";
 337                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log";
 338                 print "while test -f " builddir ".wait"
 339                 print "do"
 340                 print "\tsleep 1"
 341                 print "done"
 342                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`";
 343                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log";
 344                 jn++;
 345         }
 346         for (j = 1; j < jn; j++) {
 347                 builddir=KVM "/b" j
 348                 print "rm -f " builddir ".ready"
 349                 print "if test -z \"$TORTURE_BUILDONLY\""
 350                 print "then"
 351                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`";
 352                 print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date` >> " rd "/log";
 353                 print "fi"
 354         }
 355         print "wait"
 356         print "if test -z \"$TORTURE_BUILDONLY\""
 357         print "then"
 358         print "\techo ---- All kernel runs complete. `date`";
 359         print "\techo ---- All kernel runs complete. `date` >> " rd "/log";
 360         print "fi"
 361         for (j = 1; j < jn; j++) {
 362                 builddir=KVM "/b" j
 363                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:";
 364                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log";
 365                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out";
 366                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out >> " rd "/log";
 367         }
 368 }
 369
 370 END {
 371         njobs = i;
 372         nc = ncpus;
 373         first = 0;
 374
 375         # Each pass through the following loop considers one test.
 376         for (i = 0; i < njobs; i++) {
 377                 if (ncpus == 0) {
 378                         # Sequential test specified, each test its own batch.
 379                         dump(i, i + 1);
 380                         first = i;
 381                 } else if (nc < cpus[i] && i != 0) {
 382                         # Out of CPUs, dump out a batch.
 383                         dump(first, i);
 384                         first = i;
 385                         nc = ncpus;
 386                 }
 387                 # Account for the CPUs needed by the current test.
 388                 nc -= cpus[i];
 389         }
 390         # Dump the last batch.
 391         if (ncpus != 0)
 392                 dump(first, i);
 393 }' >> $T/script
 394
 395 cat << ___EOF___ >> $T/script
 396 echo
 397 echo
 398 echo " --- `date` Test summary:"
 399 echo Results directory: $resdir/$ds
 400 kvm-recheck.sh $resdir/$ds
 401 ___EOF___
 402
 403 if test "$dryrun" = script
 404 then
 405         cat $T/script
 406         exit 0
 407 elif test "$dryrun" = sched
 408 then
 409         # Extract the test run schedule from the script.
 410         egrep 'Start batch|Starting build\.' $T/script |
 411                 grep -v ">>" |
 412                 sed -e 's/:.*$//' -e 's/^echo //'
 413         exit 0
 414 else
 415         # Not a dryrun, so run the script.
 416         sh $T/script
 417 fi
 418
 419 # 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