tools/tmux - third_party/perfetto - Git at Google

 #!/bin/bash
 # Copyright (C) 2018 The Android Open Source Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 set -e
 SCRIPT_DIR="$(realpath "$(dirname "${BASH_SOURCE[0]}")")"

 if [ "$TMPDIR" == "" ]; then
   TMPDIR=/tmp
 fi

 function get_gn_value() {
   local out=$1
   local key=$2
   "$SCRIPT_DIR/gn" args "$out" --list=$key --short | awk '{print $3}' \
     | tr -d '"'
 }

 function is_monolithic() {
   local out=$1
   value=$(get_gn_value "$out" "monolithic_binaries")
   test "$value" == "true"
 }

 function is_android() {
   local out=$1
   value=$(get_gn_value "$out" "target_os")
   test "$value" == "android"
 }

 function is_ssh_target() {
   [[ -n "$SSH_TARGET" ]]
 }

 function is_mac() {
   # shellcheck disable=2251
   ! test -d /proc
   return $?
 }

 function tmux_ensure_bash() {
   if [[ $SHELL == *"fish" ]]; then
     tmux send-keys "bash" Enter
   fi
 }

 function reset_tracing() {
   if is_android "$OUT"; then
     # Newer versions of Android don't have debugfs mounted at all
     # anymore so use /sys/kernel/tracing if /d/tracing doesn't exist
     adb shell 'test -d /sys/kernel/tracing && echo 0 > /sys/kernel/tracing/tracing_on || echo 0 > /sys/kernel/debug/tracing/tracing_on'
   elif ! is_mac; then
     # shellcheck disable=SC2016
     local script='
     if [ ! -w /sys/kernel/debug ]; then
       echo "debugfs not accessible, try sudo chown -R $USER /sys/kernel/debug"
       sudo chown -R "$USER" /sys/kernel/debug
     fi

     echo 0 > /sys/kernel/debug/tracing/tracing_on
     '

     if is_ssh_target; then
       # shellcheck disable=SC2029
       ssh -t "$SSH_TARGET" "sh -c '$script'"
     else
       sh -c "$script"
     fi
   fi
 }

 function adb_supports_push_sync() {
   adb --help 2>&1 | grep 'push.*\[--sync\]' >/dev/null 2>&1
 }

 function push() {
   if is_android "$OUT"; then
     local maybe_sync=''
     if adb_supports_push_sync; then
       maybe_sync='--sync'
     fi
     echo adb push $maybe_sync "$1" "$DIR"
     adb push $maybe_sync "$1" "$DIR"
   elif is_ssh_target; then
     echo scp "$1" "$SSH_TARGET:$DIR"
     scp "$1" "$SSH_TARGET:$DIR"
   else
     echo cp "$1" "$DIR"
     cp "$1" "$DIR"
   fi
 }

 function pull() {
   if is_android "$OUT"; then
     echo adb pull "$DIR/$1" "$2"
     adb pull "$DIR/$1" "$2"
   elif is_ssh_target; then
     echo scp "$SSH_TARGET:$DIR/$1" "$2"
     scp "$SSH_TARGET:$DIR/$1" "$2"
   else
     echo mv "$DIR/$1" "$2"
     mv "$DIR/$1" "$2"
   fi
 }

 BACKGROUND=0
 SKIP_CONVERTERS=0
 TMUX_LAYOUT="even-vertical"
 CPU_MASK=""

 while getopts "bl:nt:c:C:z:s:" o; do
   case "$o" in
     b) BACKGROUND=1 ;;
     l) TMUX_LAYOUT=${OPTARG} ;;
     n) SKIP_CONVERTERS=1 ;;
     t) SSH_TARGET=${OPTARG} ;;
     c) CONFIG=${OPTARG} ;;
     C) OUT=${OPTARG} ;;
     z) CPU_MASK=${OPTARG} ;;
     s) SCRIPT=${OPTARG} ;;
     *)
       echo >&2 "Invalid option $o"
       exit
       ;;
   esac
 done

 # Allow out to be passed as argument
 shift $((OPTIND - 1))
 OUT="${OUT:-$1}"

 # Provide useful usage information
 if [ -z "$OUT" ]; then
   echo "Usage: $0 [OPTION]... [OUTPUT]"
   echo ""
   echo "Options:"
   echo "  -b          run in the background"
   echo "  -l LAYOUT   tmux pane layout"
   echo "  -n          skip post-trace convertors"
   echo "  -t TARGET   SSH device target"
   echo "  -c CONFIG   trace configuration file"
   echo "  -C OUTPUT   output directory"
   echo "  -z MASK     constrain binaries to given cpu mask (taskset syntax)"
   echo "  -s SCRIPT   a script to put into a tmux pane"
   echo ""
   echo "Environment variables:"
   echo "  SSH_TARGET  SSH device target"
   echo "  CONFIG      trace configuration file"
   echo "  OUT         output directory"
   exit 1
 fi

 # Warn about invalid output directories
 if [ ! -f "$OUT/args.gn" ]; then
   echo >&2 "OUT=$OUT doesn't look like an output directory."
   echo >&2 "Please specify a directory by doing:"
   echo >&2 "  export OUT=out/xxx $0"
   exit 1
 fi

 # Check SSH target is valid
 if is_ssh_target && ! ssh -q "$SSH_TARGET" exit; then
   echo >&2 "SSH_TARGET=$SSH_TARGET doesn't look like a valid SSH target."
   echo >&2 "Please specify a SSH cross-compilation target by doing:"
   echo >&2 "  export SSH_TARGET=<user>@<host> $0"
   exit 1
 fi

 if ! builtin type -P tmux &>/dev/null; then
   echo >&2 "tmux not found"
   exit 1
 fi

 # You can set the config to one of the files under test/configs e.g.
 # CONFIG=ftrace.cfg or to :test. Defaults to :test.
 CONFIG="${CONFIG:-:test}"

 if is_android "$OUT"; then
   DIR=/data/local/tmp
 elif is_ssh_target; then
   DIR=$(ssh "$SSH_TARGET" mktemp -d $TMPDIR/perfetto.XXXXXX)
 elif is_mac; then
   DIR=$(mktemp -d $TMPDIR/perfetto.XXXXXX)
 else
   DIR=$(mktemp -p $TMPDIR -d perfetto.XXXXXX)
 fi

 if is_android "$OUT"; then
   TRACECONV="gcc_like_host/traceconv"
 else
   TRACECONV="traceconv"
 fi


 # (re)build the binaries
 BUILD_TARGETS=(traced traced_probes perfetto test/configs)
 if [[ SKIP_CONVERTERS -eq 0 ]]; then
   BUILD_TARGETS+=($TRACECONV)
 fi

 "$SCRIPT_DIR/ninja" -C "$OUT" ${BUILD_TARGETS[*]}

 push "$OUT/traced"
 push "$OUT/traced_probes"
 push "$OUT/perfetto"
 reset_tracing

 if is_android "$OUT"; then
   PREFIX="PERFETTO_CONSUMER_SOCK_NAME=@perfetto_test_consumer PERFETTO_PRODUCER_SOCK_NAME=@perfetto_test_producer"
 else
   PREFIX=""
 fi

 if ! is_monolithic "$OUT"; then
   PREFIX="$PREFIX LD_LIBRARY_PATH=$DIR"
   push "$OUT/libperfetto.so"
 fi

 CONFIG_DEVICE_PATH="$CONFIG"
 CMD_OPTS=""
 # Shorthand for using serialized test configs.
 if [[ "$CONFIG" == *.protobuf ]]; then
   CONFIG_DEVICE_PATH="$CONFIG"
   CONFIG_PATH=$OUT/$CONFIG
   if [[ ! -f $CONFIG_PATH ]]; then
     echo >&2 "Config \"$CONFIG_PATH\" not known."
     exit 1
   fi
   push "$CONFIG_PATH"
 elif [[ "$CONFIG" != ":test" ]]; then
   CONFIG_DEVICE_PATH="$(basename "$CONFIG")"
   CONFIG_PATH=$CONFIG
   # If path isn't valid, assume it's a name of a test config.
   if [[ ! -f $CONFIG_PATH ]]; then
     CONFIG_PATH=test/configs/$CONFIG
     if [[ ! -f $CONFIG_PATH ]]; then
       echo >&2 "Config \"$CONFIG\" not known."
       exit 1
     fi
   fi
   CMD_OPTS="--txt $CMD_OPTS"
   push "$CONFIG_PATH"
 fi

 if [[ -f "$SCRIPT" ]]; then
   push "$SCRIPT"
 fi

 POSTFIX=""

 if [[ -n "$CPU_MASK" ]]; then
   PREFIX="$PREFIX taskset $CPU_MASK"
 fi

 if [[ BACKGROUND -eq 1 ]]; then
   PREFIX="$PREFIX nohup"
   POSTFIX=" &> /dev/null &"
 fi

 if tmux has-session -t demo; then
   tmux kill-session -t demo
 fi
 tmux -2 new-session -d -s demo

 if [ ! -z "$ANDROID_ADB_SERVER_PORT" ]; then
   tmux set-environment -t demo ANDROID_ADB_SERVER_PORT $ANDROID_ADB_SERVER_PORT
 fi

 if tmux -V | awk '{split($2, ver, "."); if (ver[1] < 2) exit 1 ; else if (ver[1] == 2 && ver[2] < 1) exit 1 }'; then
   tmux set-option -g mouse on
 else
   tmux set-option -g mode-mouse on
   tmux set-option -g mouse-resize-pane on
   tmux set-option -g mouse-select-pane on
   tmux set-option -g mouse-select-window on
 fi

 tmux split-window -v
 tmux split-window -v

 if [[ -n "$SCRIPT" ]]; then
   tmux split-window -v
 fi

 tmux select-layout "${TMUX_LAYOUT}"

 tmux select-pane -t 0
 tmux send-keys "clear" C-m
 if is_android "$OUT"; then
   tmux send-keys "adb shell" C-m
 fi

 tmux select-pane -t 1
 tmux send-keys "clear" C-m
 if is_android "$OUT"; then
   tmux send-keys "adb shell" C-m
 fi

 tmux select-pane -t 2
 tmux send-keys "clear" C-m
 if is_android "$OUT"; then
   tmux send-keys "adb shell" C-m
 fi

 if [[ -n "$SCRIPT" ]]; then
   tmux select-pane -t 3
   tmux send-keys "clear" C-m
   if is_android "$OUT"; then
     tmux send-keys "adb shell" C-m
   fi
 fi

 sleep 2

 tmux select-pane -t 1
 if is_ssh_target; then
   tmux send-keys "ssh $SSH_TARGET" Enter
 fi
 tmux_ensure_bash
 tmux send-keys "PS1='[traced]$ '" Enter
 tmux send-keys "cd $DIR" Enter
 tmux send-keys "clear" C-m
 tmux send-keys "$PREFIX ./traced $POSTFIX" Enter

 tmux select-pane -t 0
 if is_ssh_target; then
   tmux send-keys "ssh $SSH_TARGET" Enter
 fi
 tmux_ensure_bash
 tmux send-keys "PS1='[traced_probes]$ '" Enter
 tmux send-keys "cd $DIR" Enter
 tmux send-keys "clear" C-m
 tmux send-keys "$PREFIX ./traced_probes $POSTFIX" Enter

 tmux select-pane -t 2
 if is_ssh_target; then
   tmux send-keys "ssh $SSH_TARGET" Enter
 fi
 tmux_ensure_bash
 tmux send-keys "PS1='[consumer]$ '" Enter
 tmux send-keys "cd $DIR" Enter
 tmux send-keys "clear" C-m
 tmux send-keys "$PREFIX ./perfetto $CMD_OPTS -c $CONFIG_DEVICE_PATH -o trace $POSTFIX"

 if [[ -n "$SCRIPT" ]]; then
   tmux select-pane -t 3
   if is_ssh_target; then
     tmux send-keys "ssh $SSH_TARGET" Enter
   fi
   tmux_ensure_bash
   tmux send-keys "PS1='[script]$ '" Enter
   tmux send-keys "cd $DIR" Enter
   tmux send-keys "clear" C-m
   if [[ -f "$SCRIPT" ]]; then
     tmux send-keys "./$(basename "$SCRIPT")"
   else
     tmux send-keys "$SCRIPT"
   fi
 fi

 # Select consumer pane.
 tmux select-pane -t 2

 tmux -2 attach-session -t demo
 if [[ BACKGROUND -eq 1 ]]; then
   exit 0
 fi

 reset_tracing

 TRACE=$TMPDIR/trace
 echo -e "\n\x1b[32mPulling trace into $TRACE.perfetto-trace\x1b[0m"
 pull trace "$TRACE.perfetto-trace"

 if [[ SKIP_CONVERTERS -eq 0 ]]; then
   echo -e "\n\x1b[32mPulling trace into $TRACE.pbtext\x1b[0m"
   "$OUT/$TRACECONV" text <"$TRACE.perfetto-trace" >"$TRACE.pbtext"
 fi
	#!/bin/bash
	# Copyright (C) 2018 The Android Open Source Project
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	set -e
	SCRIPT_DIR="$(realpath "$(dirname "${BASH_SOURCE[0]}")")"

	if [ "$TMPDIR" == "" ]; then
	TMPDIR=/tmp
	fi

	function get_gn_value() {
	local out=$1
	local key=$2
	"$SCRIPT_DIR/gn" args "$out" --list=$key --short \| awk '{print $3}' \
	\| tr -d '"'
	}

	function is_monolithic() {
	local out=$1
	value=$(get_gn_value "$out" "monolithic_binaries")
	test "$value" == "true"
	}

	function is_android() {
	local out=$1
	value=$(get_gn_value "$out" "target_os")
	test "$value" == "android"
	}

	function is_ssh_target() {
	[[ -n "$SSH_TARGET" ]]
	}

	function is_mac() {
	# shellcheck disable=2251
	! test -d /proc
	return $?
	}

	function tmux_ensure_bash() {
	if [[ $SHELL == *"fish" ]]; then
	tmux send-keys "bash" Enter
	fi
	}

	function reset_tracing() {
	if is_android "$OUT"; then
	# Newer versions of Android don't have debugfs mounted at all
	# anymore so use /sys/kernel/tracing if /d/tracing doesn't exist
	adb shell 'test -d /sys/kernel/tracing && echo 0 > /sys/kernel/tracing/tracing_on \|\| echo 0 > /sys/kernel/debug/tracing/tracing_on'
	elif ! is_mac; then
	# shellcheck disable=SC2016
	local script='
	if [ ! -w /sys/kernel/debug ]; then
	echo "debugfs not accessible, try sudo chown -R $USER /sys/kernel/debug"
	sudo chown -R "$USER" /sys/kernel/debug
	fi

	echo 0 > /sys/kernel/debug/tracing/tracing_on
	'

	if is_ssh_target; then
	# shellcheck disable=SC2029
	ssh -t "$SSH_TARGET" "sh -c '$script'"
	else
	sh -c "$script"
	fi
	fi
	}

	function adb_supports_push_sync() {
	adb --help 2>&1 \| grep 'push.*\[--sync\]' >/dev/null 2>&1
	}

	function push() {
	if is_android "$OUT"; then
	local maybe_sync=''
	if adb_supports_push_sync; then
	maybe_sync='--sync'
	fi
	echo adb push $maybe_sync "$1" "$DIR"
	adb push $maybe_sync "$1" "$DIR"
	elif is_ssh_target; then
	echo scp "$1" "$SSH_TARGET:$DIR"
	scp "$1" "$SSH_TARGET:$DIR"
	else
	echo cp "$1" "$DIR"
	cp "$1" "$DIR"
	fi
	}

	function pull() {
	if is_android "$OUT"; then
	echo adb pull "$DIR/$1" "$2"
	adb pull "$DIR/$1" "$2"
	elif is_ssh_target; then
	echo scp "$SSH_TARGET:$DIR/$1" "$2"
	scp "$SSH_TARGET:$DIR/$1" "$2"
	else
	echo mv "$DIR/$1" "$2"
	mv "$DIR/$1" "$2"
	fi
	}

	BACKGROUND=0
	SKIP_CONVERTERS=0
	TMUX_LAYOUT="even-vertical"
	CPU_MASK=""

	while getopts "bl:nt:c:C:z:s:" o; do
	case "$o" in
	b) BACKGROUND=1 ;;
	l) TMUX_LAYOUT=${OPTARG} ;;
	n) SKIP_CONVERTERS=1 ;;
	t) SSH_TARGET=${OPTARG} ;;
	c) CONFIG=${OPTARG} ;;
	C) OUT=${OPTARG} ;;
	z) CPU_MASK=${OPTARG} ;;
	s) SCRIPT=${OPTARG} ;;
	*)
	echo >&2 "Invalid option $o"
	exit
	;;
	esac
	done

	# Allow out to be passed as argument
	shift $((OPTIND - 1))
	OUT="${OUT:-$1}"

	# Provide useful usage information
	if [ -z "$OUT" ]; then
	echo "Usage: $0 [OPTION]... [OUTPUT]"
	echo ""
	echo "Options:"
	echo " -b run in the background"
	echo " -l LAYOUT tmux pane layout"
	echo " -n skip post-trace convertors"
	echo " -t TARGET SSH device target"
	echo " -c CONFIG trace configuration file"
	echo " -C OUTPUT output directory"
	echo " -z MASK constrain binaries to given cpu mask (taskset syntax)"
	echo " -s SCRIPT a script to put into a tmux pane"
	echo ""
	echo "Environment variables:"
	echo " SSH_TARGET SSH device target"
	echo " CONFIG trace configuration file"
	echo " OUT output directory"
	exit 1
	fi

	# Warn about invalid output directories
	if [ ! -f "$OUT/args.gn" ]; then
	echo >&2 "OUT=$OUT doesn't look like an output directory."
	echo >&2 "Please specify a directory by doing:"
	echo >&2 " export OUT=out/xxx $0"
	exit 1
	fi

	# Check SSH target is valid
	if is_ssh_target && ! ssh -q "$SSH_TARGET" exit; then
	echo >&2 "SSH_TARGET=$SSH_TARGET doesn't look like a valid SSH target."
	echo >&2 "Please specify a SSH cross-compilation target by doing:"
	echo >&2 " export SSH_TARGET=<user>@<host> $0"
	exit 1
	fi

	if ! builtin type -P tmux &>/dev/null; then
	echo >&2 "tmux not found"
	exit 1
	fi

	# You can set the config to one of the files under test/configs e.g.
	# CONFIG=ftrace.cfg or to :test. Defaults to :test.
	CONFIG="${CONFIG:-:test}"

	if is_android "$OUT"; then
	DIR=/data/local/tmp
	elif is_ssh_target; then
	DIR=$(ssh "$SSH_TARGET" mktemp -d $TMPDIR/perfetto.XXXXXX)
	elif is_mac; then
	DIR=$(mktemp -d $TMPDIR/perfetto.XXXXXX)
	else
	DIR=$(mktemp -p $TMPDIR -d perfetto.XXXXXX)
	fi

	if is_android "$OUT"; then
	TRACECONV="gcc_like_host/traceconv"
	else
	TRACECONV="traceconv"
	fi


	# (re)build the binaries
	BUILD_TARGETS=(traced traced_probes perfetto test/configs)
	if [[ SKIP_CONVERTERS -eq 0 ]]; then
	BUILD_TARGETS+=($TRACECONV)
	fi

	"$SCRIPT_DIR/ninja" -C "$OUT" ${BUILD_TARGETS[*]}

	push "$OUT/traced"
	push "$OUT/traced_probes"
	push "$OUT/perfetto"
	reset_tracing

	if is_android "$OUT"; then
	PREFIX="PERFETTO_CONSUMER_SOCK_NAME=@perfetto_test_consumer PERFETTO_PRODUCER_SOCK_NAME=@perfetto_test_producer"
	else
	PREFIX=""
	fi

	if ! is_monolithic "$OUT"; then
	PREFIX="$PREFIX LD_LIBRARY_PATH=$DIR"
	push "$OUT/libperfetto.so"
	fi

	CONFIG_DEVICE_PATH="$CONFIG"
	CMD_OPTS=""
	# Shorthand for using serialized test configs.
	if [[ "$CONFIG" == *.protobuf ]]; then
	CONFIG_DEVICE_PATH="$CONFIG"
	CONFIG_PATH=$OUT/$CONFIG
	if [[ ! -f $CONFIG_PATH ]]; then
	echo >&2 "Config \"$CONFIG_PATH\" not known."
	exit 1
	fi
	push "$CONFIG_PATH"
	elif [[ "$CONFIG" != ":test" ]]; then
	CONFIG_DEVICE_PATH="$(basename "$CONFIG")"
	CONFIG_PATH=$CONFIG
	# If path isn't valid, assume it's a name of a test config.
	if [[ ! -f $CONFIG_PATH ]]; then
	CONFIG_PATH=test/configs/$CONFIG
	if [[ ! -f $CONFIG_PATH ]]; then
	echo >&2 "Config \"$CONFIG\" not known."
	exit 1
	fi
	fi
	CMD_OPTS="--txt $CMD_OPTS"
	push "$CONFIG_PATH"
	fi

	if [[ -f "$SCRIPT" ]]; then
	push "$SCRIPT"
	fi

	POSTFIX=""

	if [[ -n "$CPU_MASK" ]]; then
	PREFIX="$PREFIX taskset $CPU_MASK"
	fi

	if [[ BACKGROUND -eq 1 ]]; then
	PREFIX="$PREFIX nohup"
	POSTFIX=" &> /dev/null &"
	fi

	if tmux has-session -t demo; then
	tmux kill-session -t demo
	fi
	tmux -2 new-session -d -s demo

	if [ ! -z "$ANDROID_ADB_SERVER_PORT" ]; then
	tmux set-environment -t demo ANDROID_ADB_SERVER_PORT $ANDROID_ADB_SERVER_PORT
	fi

	if tmux -V \| awk '{split($2, ver, "."); if (ver[1] < 2) exit 1 ; else if (ver[1] == 2 && ver[2] < 1) exit 1 }'; then
	tmux set-option -g mouse on
	else
	tmux set-option -g mode-mouse on
	tmux set-option -g mouse-resize-pane on
	tmux set-option -g mouse-select-pane on
	tmux set-option -g mouse-select-window on
	fi

	tmux split-window -v
	tmux split-window -v

	if [[ -n "$SCRIPT" ]]; then
	tmux split-window -v
	fi

	tmux select-layout "${TMUX_LAYOUT}"

	tmux select-pane -t 0
	tmux send-keys "clear" C-m
	if is_android "$OUT"; then
	tmux send-keys "adb shell" C-m
	fi

	tmux select-pane -t 1
	tmux send-keys "clear" C-m
	if is_android "$OUT"; then
	tmux send-keys "adb shell" C-m
	fi

	tmux select-pane -t 2
	tmux send-keys "clear" C-m
	if is_android "$OUT"; then
	tmux send-keys "adb shell" C-m
	fi

	if [[ -n "$SCRIPT" ]]; then
	tmux select-pane -t 3
	tmux send-keys "clear" C-m
	if is_android "$OUT"; then
	tmux send-keys "adb shell" C-m
	fi
	fi

	sleep 2

	tmux select-pane -t 1
	if is_ssh_target; then
	tmux send-keys "ssh $SSH_TARGET" Enter
	fi
	tmux_ensure_bash
	tmux send-keys "PS1='[traced]$ '" Enter
	tmux send-keys "cd $DIR" Enter
	tmux send-keys "clear" C-m
	tmux send-keys "$PREFIX ./traced $POSTFIX" Enter

	tmux select-pane -t 0
	if is_ssh_target; then
	tmux send-keys "ssh $SSH_TARGET" Enter
	fi
	tmux_ensure_bash
	tmux send-keys "PS1='[traced_probes]$ '" Enter
	tmux send-keys "cd $DIR" Enter
	tmux send-keys "clear" C-m
	tmux send-keys "$PREFIX ./traced_probes $POSTFIX" Enter

	tmux select-pane -t 2
	if is_ssh_target; then
	tmux send-keys "ssh $SSH_TARGET" Enter
	fi
	tmux_ensure_bash
	tmux send-keys "PS1='[consumer]$ '" Enter
	tmux send-keys "cd $DIR" Enter
	tmux send-keys "clear" C-m
	tmux send-keys "$PREFIX ./perfetto $CMD_OPTS -c $CONFIG_DEVICE_PATH -o trace $POSTFIX"

	if [[ -n "$SCRIPT" ]]; then
	tmux select-pane -t 3
	if is_ssh_target; then
	tmux send-keys "ssh $SSH_TARGET" Enter
	fi
	tmux_ensure_bash
	tmux send-keys "PS1='[script]$ '" Enter
	tmux send-keys "cd $DIR" Enter
	tmux send-keys "clear" C-m
	if [[ -f "$SCRIPT" ]]; then
	tmux send-keys "./$(basename "$SCRIPT")"
	else
	tmux send-keys "$SCRIPT"
	fi
	fi

	# Select consumer pane.
	tmux select-pane -t 2

	tmux -2 attach-session -t demo
	if [[ BACKGROUND -eq 1 ]]; then
	exit 0
	fi

	reset_tracing

	TRACE=$TMPDIR/trace
	echo -e "\n\x1b[32mPulling trace into $TRACE.perfetto-trace\x1b[0m"
	pull trace "$TRACE.perfetto-trace"

	if [[ SKIP_CONVERTERS -eq 0 ]]; then
	echo -e "\n\x1b[32mPulling trace into $TRACE.pbtext\x1b[0m"
	"$OUT/$TRACECONV" text <"$TRACE.perfetto-trace" >"$TRACE.pbtext"
	fi