| #!/bin/bash |
| # |
| # Run a series of 14 tests under KVM. These are not particularly |
| # well-selected or well-tuned, but are the current set. Run from the |
| # top level of the source tree. |
| # |
| # Edit the definitions below to set the locations of the various directories, |
| # as well as the test duration. |
| # |
| # Usage: bash kvm.sh [ options ] |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, you can access it online at |
| # http://www.gnu.org/licenses/gpl-2.0.html. |
| # |
| # Copyright (C) IBM Corporation, 2011 |
| # |
| # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
| |
| scriptname=$0 |
| args="$*" |
| |
| T=/tmp/kvm.sh.$$ |
| trap 'rm -rf $T' 0 |
| mkdir $T |
| |
| dur=30 |
| dryrun="" |
| KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM |
| PATH=${KVM}/bin:$PATH; export PATH |
| TORTURE_DEFCONFIG=defconfig |
| TORTURE_BOOT_IMAGE="" |
| TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD |
| TORTURE_KMAKE_ARG="" |
| TORTURE_SUITE=rcu |
| resdir="" |
| configs="" |
| cpus=0 |
| ds=`date +%Y.%m.%d-%H:%M:%S` |
| kversion="" |
| |
| . functions.sh |
| |
| usage () { |
| echo "Usage: $scriptname optional arguments:" |
| echo " --bootargs kernel-boot-arguments" |
| echo " --bootimage relative-path-to-kernel-boot-image" |
| echo " --buildonly" |
| echo " --configs \"config-file list\"" |
| echo " --cpus N" |
| echo " --datestamp string" |
| echo " --defconfig string" |
| echo " --dryrun sched|script" |
| echo " --duration minutes" |
| echo " --interactive" |
| echo " --kmake-arg kernel-make-arguments" |
| echo " --kversion vN.NN" |
| echo " --mac nn:nn:nn:nn:nn:nn" |
| echo " --no-initrd" |
| echo " --qemu-args qemu-system-..." |
| echo " --qemu-cmd qemu-system-..." |
| echo " --results absolute-pathname" |
| echo " --torture rcu" |
| exit 1 |
| } |
| |
| while test $# -gt 0 |
| do |
| case "$1" in |
| --bootargs) |
| checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--' |
| TORTURE_BOOTARGS="$2" |
| shift |
| ;; |
| --bootimage) |
| checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--' |
| TORTURE_BOOT_IMAGE="$2" |
| shift |
| ;; |
| --buildonly) |
| TORTURE_BUILDONLY=1 |
| ;; |
| --configs) |
| checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--' |
| configs="$2" |
| shift |
| ;; |
| --cpus) |
| checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--' |
| cpus=$2 |
| shift |
| ;; |
| --datestamp) |
| checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--' |
| ds=$2 |
| shift |
| ;; |
| --defconfig) |
| checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--' |
| TORTURE_DEFCONFIG=$2 |
| shift |
| ;; |
| --dryrun) |
| checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--' |
| dryrun=$2 |
| shift |
| ;; |
| --duration) |
| checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error' |
| dur=$2 |
| shift |
| ;; |
| --interactive) |
| TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE |
| ;; |
| --kmake-arg) |
| checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$' |
| TORTURE_KMAKE_ARG="$2" |
| shift |
| ;; |
| --kversion) |
| checkarg --kversion "(kernel version)" $# "$2" '^v[0-9.]*$' '^error' |
| kversion=$2 |
| shift |
| ;; |
| --mac) |
| checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error |
| TORTURE_QEMU_MAC=$2 |
| shift |
| ;; |
| --no-initrd) |
| TORTURE_INITRD=""; export TORTURE_INITRD |
| ;; |
| --qemu-args) |
| checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error' |
| TORTURE_QEMU_ARG="$2" |
| shift |
| ;; |
| --qemu-cmd) |
| checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--' |
| TORTURE_QEMU_CMD="$2" |
| shift |
| ;; |
| --results) |
| checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error' |
| resdir=$2 |
| shift |
| ;; |
| --torture) |
| checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\)$' '^--' |
| TORTURE_SUITE=$2 |
| shift |
| ;; |
| *) |
| echo Unknown argument $1 |
| usage |
| ;; |
| esac |
| shift |
| done |
| |
| CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG |
| KVPATH=${CONFIGFRAG}/$kversion; export KVPATH |
| |
| if test -z "$configs" |
| then |
| configs="`cat $CONFIGFRAG/$kversion/CFLIST`" |
| fi |
| |
| if test -z "$resdir" |
| then |
| resdir=$KVM/res |
| fi |
| |
| # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus. |
| touch $T/cfgcpu |
| for CF in $configs |
| do |
| if test -f "$CONFIGFRAG/$kversion/$CF" |
| then |
| echo $CF `configNR_CPUS.sh $CONFIGFRAG/$kversion/$CF` >> $T/cfgcpu |
| else |
| echo "The --configs file $CF does not exist, terminating." |
| exit 1 |
| fi |
| done |
| sort -k2nr $T/cfgcpu > $T/cfgcpu.sort |
| |
| # Use a greedy bin-packing algorithm, sorting the list accordingly. |
| awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus ' |
| BEGIN { |
| njobs = 0; |
| } |
| |
| { |
| # Read file of tests and corresponding required numbers of CPUs. |
| cf[njobs] = $1; |
| cpus[njobs] = $2; |
| njobs++; |
| } |
| |
| END { |
| alldone = 0; |
| batch = 0; |
| nc = -1; |
| |
| # Each pass through the following loop creates on test batch |
| # that can be executed concurrently given ncpus. Note that a |
| # given test that requires more than the available CPUs will run in |
| # their own batch. Such tests just have to make do with what |
| # is available. |
| while (nc != ncpus) { |
| batch++; |
| nc = ncpus; |
| |
| # Each pass through the following loop considers one |
| # test for inclusion in the current batch. |
| for (i = 0; i < njobs; i++) { |
| if (done[i]) |
| continue; # Already part of a batch. |
| if (nc >= cpus[i] || nc == ncpus) { |
| |
| # This test fits into the current batch. |
| done[i] = batch; |
| nc -= cpus[i]; |
| if (nc <= 0) |
| break; # Too-big test in its own batch. |
| } |
| } |
| } |
| |
| # Dump out the tests in batch order. |
| for (b = 1; b <= batch; b++) |
| for (i = 0; i < njobs; i++) |
| if (done[i] == b) |
| print cf[i], cpus[i]; |
| }' |
| |
| # Generate a script to execute the tests in appropriate batches. |
| cat << ___EOF___ > $T/script |
| CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG |
| KVM="$KVM"; export KVM |
| KVPATH="$KVPATH"; export KVPATH |
| PATH="$PATH"; export PATH |
| TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE |
| TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY |
| TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG |
| TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD |
| TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG |
| TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD |
| TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE |
| TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC |
| TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE |
| if ! test -e $resdir |
| then |
| mkdir -p "$resdir" || : |
| fi |
| mkdir $resdir/$ds |
| echo Results directory: $resdir/$ds |
| echo $scriptname $args |
| touch $resdir/$ds/log |
| echo $scriptname $args >> $resdir/$ds/log |
| echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE |
| pwd > $resdir/$ds/testid.txt |
| if test -d .git |
| then |
| git status >> $resdir/$ds/testid.txt |
| git rev-parse HEAD >> $resdir/$ds/testid.txt |
| if ! git diff HEAD > $T/git-diff 2>&1 |
| then |
| cp $T/git-diff $resdir/$ds |
| fi |
| fi |
| ___EOF___ |
| awk < $T/cfgcpu.pack \ |
| -v CONFIGDIR="$CONFIGFRAG/$kversion/" \ |
| -v KVM="$KVM" \ |
| -v ncpus=$cpus \ |
| -v rd=$resdir/$ds/ \ |
| -v dur=$dur \ |
| -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \ |
| -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \ |
| 'BEGIN { |
| i = 0; |
| } |
| |
| { |
| cf[i] = $1; |
| cpus[i] = $2; |
| i++; |
| } |
| |
| # Dump out the scripting required to run one test batch. |
| function dump(first, pastlast) |
| { |
| print "echo ----Start batch: `date`"; |
| print "echo ----Start batch: `date` >> " rd "/log"; |
| jn=1 |
| for (j = first; j < pastlast; j++) { |
| builddir=KVM "/b" jn |
| cpusr[jn] = cpus[j]; |
| if (cfrep[cf[j]] == "") { |
| cfr[jn] = cf[j]; |
| cfrep[cf[j]] = 1; |
| } else { |
| cfrep[cf[j]]++; |
| cfr[jn] = cf[j] "." cfrep[cf[j]]; |
| } |
| if (cpusr[jn] > ncpus && ncpus != 0) |
| ovf = "(!)"; |
| else |
| ovf = ""; |
| print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`"; |
| print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log"; |
| print "rm -f " builddir ".*"; |
| print "touch " builddir ".wait"; |
| print "mkdir " builddir " > /dev/null 2>&1 || :"; |
| print "mkdir " rd cfr[jn] " || :"; |
| print "kvm-test-1-run.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn] "/kvm-test-1-run.sh.out 2>&1 &" |
| print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`"; |
| print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log"; |
| print "while test -f " builddir ".wait" |
| print "do" |
| print "\tsleep 1" |
| print "done" |
| print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`"; |
| print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log"; |
| jn++; |
| } |
| for (j = 1; j < jn; j++) { |
| builddir=KVM "/b" j |
| print "rm -f " builddir ".ready" |
| print "if test -z \"$TORTURE_BUILDONLY\"" |
| print "then" |
| print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`"; |
| print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date` >> " rd "/log"; |
| print "fi" |
| } |
| print "wait" |
| print "if test -z \"$TORTURE_BUILDONLY\"" |
| print "then" |
| print "\techo ---- All kernel runs complete. `date`"; |
| print "\techo ---- All kernel runs complete. `date` >> " rd "/log"; |
| print "fi" |
| for (j = 1; j < jn; j++) { |
| builddir=KVM "/b" j |
| print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:"; |
| print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log"; |
| print "cat " rd cfr[j] "/kvm-test-1-run.sh.out"; |
| print "cat " rd cfr[j] "/kvm-test-1-run.sh.out >> " rd "/log"; |
| } |
| } |
| |
| END { |
| njobs = i; |
| nc = ncpus; |
| first = 0; |
| |
| # Each pass through the following loop considers one test. |
| for (i = 0; i < njobs; i++) { |
| if (ncpus == 0) { |
| # Sequential test specified, each test its own batch. |
| dump(i, i + 1); |
| first = i; |
| } else if (nc < cpus[i] && i != 0) { |
| # Out of CPUs, dump out a batch. |
| dump(first, i); |
| first = i; |
| nc = ncpus; |
| } |
| # Account for the CPUs needed by the current test. |
| nc -= cpus[i]; |
| } |
| # Dump the last batch. |
| if (ncpus != 0) |
| dump(first, i); |
| }' >> $T/script |
| |
| cat << ___EOF___ >> $T/script |
| echo |
| echo |
| echo " --- `date` Test summary:" |
| echo Results directory: $resdir/$ds |
| kvm-recheck.sh $resdir/$ds |
| ___EOF___ |
| |
| if test "$dryrun" = script |
| then |
| cat $T/script |
| exit 0 |
| elif test "$dryrun" = sched |
| then |
| # Extract the test run schedule from the script. |
| egrep 'Start batch|Starting build\.' $T/script | |
| grep -v ">>" | |
| sed -e 's/:.*$//' -e 's/^echo //' |
| exit 0 |
| else |
| # Not a dryrun, so run the script. |
| sh $T/script |
| fi |
| |
| # 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 |