#!/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: sh 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:$PATH; export PATH
builddir="${KVM}/b1"
RCU_INITRD="$KVM/initrd"; export RCU_INITRD
RCU_KMAKE_ARG=""; export RCU_KMAKE_ARG
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 " --builddir absolute-pathname"
echo " --buildonly"
echo " --configs \"config-file list\""
echo " --cpus N"
echo " --datestamp 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 " --relbuilddir relative-pathname"
exit 1
}
while test $# -gt 0
do
case "$1" in
--bootargs)
checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
RCU_BOOTARGS="$2"
shift
;;
--builddir)
checkarg --builddir "(absolute pathname)" "$#" "$2" '^/' '^error'
builddir=$2
gotbuilddir=1
shift
;;
--buildonly)
RCU_BUILDONLY=1; export RCU_BUILDONLY
;;
--configs)
checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
configs="$2"
shift
;;
--cpus)
checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
cpus=$2
shift
;;
--datestamp)
checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
ds=$2
shift
;;
--dryrun)
checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
dryrun=$2
shift
;;
--duration)
checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
dur=$2
shift
;;
--interactive)
RCU_QEMU_INTERACTIVE=1; export RCU_QEMU_INTERACTIVE
;;
--kmake-arg)
checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
RCU_KMAKE_ARG="$2"; export RCU_KMAKE_ARG
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
RCU_QEMU_MAC=$2; export RCU_QEMU_MAC
shift
;;
--no-initrd)
RCU_INITRD=""; export RCU_INITRD
;;
--qemu-args)
checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error'
RCU_QEMU_ARG="$2"
shift
;;
--qemu-cmd)
checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
RCU_QEMU_CMD="$2"; export RCU_QEMU_CMD
shift
;;
--relbuilddir)
checkarg --relbuilddir "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
relbuilddir=$2
gotrelbuilddir=1
builddir=${KVM}/${relbuilddir}
shift
;;
--results)
checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
resdir=$2
shift
;;
*)
echo Unknown argument $1
usage
;;
esac
shift
done
CONFIGFRAG=${KVM}/configs; 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
if ! test -e $resdir
then
mkdir $resdir || :
fi
else
if ! test -e $resdir
then
mkdir -p "$resdir" || :
fi
fi
mkdir $resdir/$ds
if test "$dryrun" = ""
then
echo Results directory: $resdir/$ds
echo $scriptname $args
fi
touch $resdir/$ds/log
echo $scriptname $args >> $resdir/$ds/log
pwd > $resdir/$ds/testid.txt
if test -d .git
then
git status >> $resdir/$ds/testid.txt
git rev-parse HEAD >> $resdir/$ds/testid.txt
fi
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
awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
BEGIN {
njobs = 0;
}
{
cf[njobs] = $1;
cpus[njobs] = $2;
njobs++;
}
END {
alldone = 0;
batch = 0;
nc = -1;
while (nc != ncpus) {
batch++;
nc = ncpus;
for (i = 0; i < njobs; i++) {
if (done[i])
continue;
if (nc >= cpus[i] || nc == ncpus) {
done[i] = batch;
nc -= cpus[i];
if (nc <= 0)
break;
}
}
}
for (b = 1; b <= batch; b++)
for (i = 0; i < njobs; i++)
if (done[i] == b)
print cf[i], cpus[i];
}'
awk < $T/cfgcpu.pack \
-v CONFIGDIR="$CONFIGFRAG/$kversion/" \
-v KVM="$KVM" \
-v ncpus=$cpus \
-v rd=$resdir/$ds/ \
-v dur=$dur \
-v RCU_QEMU_ARG=$RCU_QEMU_ARG \
-v RCU_BOOTARGS=$RCU_BOOTARGS \
'BEGIN {
i = 0;
}
{
cf[i] = $1;
cpus[i] = $2;
i++;
}
function dump(first, pastlast)
{
print "echo ----start batch----"
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]];
}
print "echo ", cfr[jn], cpusr[jn] ": Starting build.";
print "rm -f " builddir ".*";
print "touch " builddir ".wait";
print "mkdir " builddir " > /dev/null 2>&1 || :";
print "mkdir " rd cfr[jn] " || :";
print "kvm-test-1-rcu.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" RCU_QEMU_ARG "\" \"" RCU_BOOTARGS "\" > " builddir ".out 2>&1 &"
print "echo ", cfr[jn], cpusr[jn] ": Waiting for build to complete."
print "while test -f " builddir ".wait"
print "do"
print "\tsleep 1"
print "done"
print "echo ", cfr[jn], cpusr[jn] ": Build complete."
jn++;
}
for (j = 1; j < jn; j++) {
builddir=KVM "/b" j
print "rm -f " builddir ".ready"
print "echo ----", cfr[j], cpusr[j] ": Starting kernel"
}
print "wait"
print "echo ---- All kernel runs complete"
for (j = 1; j < jn; j++) {
builddir=KVM "/b" j
print "echo ----", cfr[j], cpusr[j] ": Build/run results:"
print "cat " builddir ".out"
}
}
END {
njobs = i;
nc = ncpus;
first = 0;
for (i = 0; i < njobs; i++) {
if (ncpus == 0) {
dump(i, i + 1);
first = i;
} else if (nc < cpus[i] && i != 0) {
dump(first, i);
first = i;
nc = ncpus;
}
nc -= cpus[i];
}
if (ncpus != 0)
dump(first, i);
}' > $T/script
if test "$dryrun" = script
then
echo CONFIGFRAG="$CONFIGFRAG; export CONFIGFRAG"
echo KVM="$KVM; export KVM"
echo KVPATH="$KVPATH; export KVPATH"
echo PATH="$PATH; export PATH"
echo RCU_BUILDONLY="$RCU_BUILDONLY; export RCU_BUILDONLY"
echo RCU_INITRD="$RCU_INITRD; export RCU_INITRD"
echo RCU_KMAKE_ARG="$RCU_KMAKE_ARG; export RCU_KMAKE_ARG"
echo RCU_QEMU_CMD="$RCU_QEMU_CMD; export RCU_QEMU_CMD"
echo RCU_QEMU_INTERACTIVE="$RCU_QEMU_INTERACTIVE; export RCU_QEMU_INTERACTIVE"
echo RCU_QEMU_MAC="$RCU_QEMU_MAC; export RCU_QEMU_MAC"
cat $T/script
exit 0
elif test "$dryrun" = sched
then
egrep 'start batch|Starting build\.' $T/script |
sed -e 's/:.*$//' -e 's/^echo //'
exit 0
else
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
echo " --- `date` Test summary:"
kvm-recheck.sh $resdir/$ds
