Re: [PATCH RFC 15/16] rcutorture: Add scripts to run experiments

From: Paul E. McKenney
Date: Thu Jan 25 2018 - 01:31:08 EST

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On Tue, Jan 23, 2018 at 03:59:40PM +0800, lianglihao@xxxxxxxxxx wrote:
> From: Lihao Liang <lianglihao@xxxxxxxxxx>
>
> Signed-off-by: Lihao Liang <lianglihao@xxxxxxxxxx>
> ---
> kvm.sh | 452 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> run-rcuperf.sh | 26 ++++

The usual approach would be to add what you need to the existing kvm.sh...

Thanx, Paul

> 2 files changed, 478 insertions(+)
> create mode 100755 kvm.sh
> create mode 100755 run-rcuperf.sh
>
> diff --git a/kvm.sh b/kvm.sh
> new file mode 100755
> index 00000000..3b3c1b69
> --- /dev/null
> +++ b/kvm.sh
> @@ -0,0 +1,452 @@
> +#!/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: 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@xxxxxxxxxxxxxxxxxx>
> +
> +scriptname=$0
> +args="$*"
> +
> +T=/tmp/kvm.sh.$$
> +trap 'rm -rf $T' 0
> +mkdir $T
> +
> +dur=$((30*60))
> +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_SHUTDOWN_GRACE=180
> +TORTURE_SUITE=rcu
> +resdir=""
> +configs=""
> +cpus=0
> +ds=`date +%Y.%m.%d-%H:%M:%S`
> +jitter="-1"
> +
> +. 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 w/ repeat factor (3*TINY01)\""
> + echo " --cpus N"
> + echo " --datestamp string"
> + echo " --defconfig string"
> + echo " --dryrun sched|script"
> + echo " --duration minutes"
> + echo " --interactive"
> + echo " --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
> + echo " --kmake-arg kernel-make-arguments"
> + 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|--bootarg)
> + 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|--config)
> + 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*60))
> + shift
> + ;;
> + --interactive)
> + TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
> + ;;
> + --jitter)
> + checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+$ \+[0-9]\+$\{,2\} *$' '^error$'
> + jitter="$2"
> + shift
> + ;;
> + --kmake-arg)
> + checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
> + TORTURE_KMAKE_ARG="$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|--qemu-arg)
> + 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
> + ;;
> + --shutdown-grace)
> + checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
> + TORTURE_SHUTDOWN_GRACE=$2
> + shift
> + ;;
> + --torture)
> + checkarg --torture "(suite name)" "$#" "$2" '^$lock\|rcu\|rcuperf$$' '^--'
> + TORTURE_SUITE=$2
> + shift
> + ;;
> + *)
> + echo Unknown argument $1
> + usage
> + ;;
> + esac
> + shift
> +done
> +
> +CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
> +
> +if test -z "$configs"
> +then
> + configs="`cat $CONFIGFRAG/CFLIST`"
> +fi
> +
> +if test -z "$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
> + case $CF in
> + [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
> + config_reps=`echo $CF | sed -e 's/\*.*$//'`
> + CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
> + ;;
> + *)
> + config_reps=1
> + CF1=$CF
> + ;;
> + esac
> + if test -f "$CONFIGFRAG/$CF1"
> + then
> + cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
> + cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
> + for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
> + do
> + echo $CF1 $cpu_count >> $T/cfgcpu
> + done
> + else
> + echo "The --configs file $CF1 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="$KVM"; export KVM
> +PATH="$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_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
> +TORTURE_SUITE="$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 < $T/cfgcpu.pack \
> + -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
> + -v CONFIGDIR="$CONFIGFRAG/" \
> + -v KVM="$KVM" \
> + -v ncpus=$cpus \
> + -v jitter="$jitter" \
> + -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] = $2;
> + i++;
> +}
> +
> +# Dump out the scripting required to run one test batch.
> +function dump(first, pastlast, batchnum)
> +{
> + print "echo ----Start batch " batchnum ": `date`";
> + print "echo ----Start batch " batchnum ": `date` >> " rd "/log";
> + jn=1
> + for (j = first; j < pastlast; j++) {
> + builddir=KVM "/b" jn
> + cpusr[jn] = cpus[j];
> + if (cfrep[cf[j]] == "") {
> + cfr[jn] = cf[j];
> + cfrep[cf[j]] = 1;
> + } else {
> + cfrep[cf[j]]++;
> + cfr[jn] = cf[j] "." cfrep[cf[j]];
> + }
> + if (cpusr[jn] > ncpus && ncpus != 0)
> + ovf = "-ovf";
> + else
> + ovf = "";
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log";
> + print "rm -f " builddir ".*";
> + print "touch " builddir ".wait";
> + print "mkdir " builddir " > /dev/null 2>&1 || :";
> + print "mkdir " rd cfr[jn] " || :";
> + print "kvm-test-1-run.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn] "/kvm-test-1-run.sh.out 2>&1 &"
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`";
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log";
> + print "while test -f " builddir ".wait"
> + print "do"
> + print "\tsleep 1"
> + print "done"
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`";
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log";
> + jn++;
> + }
> + for (j = 1; j < jn; j++) {
> + builddir=KVM "/b" j
> + print "rm -f " builddir ".ready"
> + print "if test -z \"$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"
> + }
> + njitter = 0;
> + split(jitter, ja);
> + if (ja[1] == -1 && ncpus == 0)
> + njitter = 1;
> + else if (ja[1] == -1)
> + njitter = ncpus;
> + else
> + njitter = ja[1];
> + if (TORTURE_BUILDONLY && njitter != 0) {
> + njitter = 0;
> + print "echo Build-only run, so suppressing jitter >> " rd "/log"
> + }
> + for (j = 0; j < njitter; j++)
> + print "jitter.sh " j " " dur " " ja[2] " " ja[3] "&"
> + 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;
> + batchnum = 1;
> +
> + # 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, batchnum);
> + first = i;
> + batchnum++;
> + } else if (nc < cpus[i] && i != 0) {
> + # Out of CPUs, dump out a batch.
> + dump(first, i, batchnum);
> + first = i;
> + nc = ncpus;
> + batchnum++;
> + }
> + # Account for the CPUs needed by the current test.
> + nc -= cpus[i];
> + }
> + # Dump the last batch.
> + if (ncpus != 0)
> + dump(first, i, batchnum);
> +}' >> $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 $T/script
> +fi
> +
> +# Tracing: trace_event=rcu:rcu_grace_period,rcu:rcu_future_grace_period,rcu:rcu_grace_period_init,rcu:rcu_nocb_wake,rcu:rcu_preempt_task,rcu:rcu_unlock_preempted_task,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_kfree_callback,rcu:rcu_batch_start,rcu:rcu_invoke_callback,rcu:rcu_invoke_kfree_callback,rcu:rcu_batch_end,rcu:rcu_torture_read,rcu:rcu_barrier
> diff --git a/run-rcuperf.sh b/run-rcuperf.sh
> new file mode 100755
> index 00000000..0526fff1
> --- /dev/null
> +++ b/run-rcuperf.sh
> @@ -0,0 +1,26 @@
> +#!/bin/bash
> +
> +dur=10
> +run=10
> +torture="rcuperf"
> +rest="1m"
> +path=`pwd`
> +
> +for cpu in 4 8 16
> +do
> + for type in PRCU TREE
> + do
> + folder="$path/res/rcuperf/cpu-$cpu/$type"
> + if ! test -d $folder
> + then
> + echo "$folder does not exist..."
> + exit
> + fi
> +
> + echo "Running rcuperf-$type-${cpu}cpus..."
> + `./kvm.sh --torture $torture --duration $dur --configs ${run}*${type}-${cpu} --results $folder &> $folder/$type-cpu${cpu}-${dur}min.out`
> +
> + echo "Sleep $rest..."
> + `sleep $rest`
> + done
> +done
> --
> 2.14.1.729.g59c0ea183
>

Next message: Paul E. McKenney: "Re: [PATCH RFC 06/16] rcuperf: Set gp_exp to true for tests to run"
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