Date:   Tue, 23 Jan 2018 15:59:40 +0800
From:   <lianglihao@...wei.com>
To:     <paulmck@...ux.vnet.ibm.com>
CC:     <guohanjun@...wei.com>, <heng.z@...wei.com>, <hb.chen@...wei.com>,
        <lihao.liang@...il.com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH RFC 15/16] rcutorture: Add scripts to run experiments

From: Lihao Liang <lianglihao@...wei.com>

Signed-off-by: Lihao Liang <lianglihao@...wei.com>
---
 kvm.sh         | 452 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 run-rcuperf.sh |  26 ++++
 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@...ux.vnet.ibm.com>
+
+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

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