diff --git a/examples/dummy/nginx-dummy.conf b/examples/dummy/nginx-dummy.conf
index a1e58e7..2e6e1a4 100644
--- a/examples/dummy/nginx-dummy.conf
+++ b/examples/dummy/nginx-dummy.conf
@@ -1,7 +1,7 @@
 
 
-master_process on;
-worker_processes 2;
+master_process off;
+worker_processes 0;
 worker_rlimit_nofile 131072;
 
 events {
diff --git a/scripts/benchmark.z-run b/scripts/benchmark.z-run
index eef7ec8..bca0377 100644
--- a/scripts/benchmark.z-run
+++ b/scripts/benchmark.z-run
@@ -5,10 +5,8 @@
 
 :: benchmark / server / http-fast / 1x1 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-fast "${@}" --processes 1 --threads 1
 :: benchmark / server / http-fast / 2x1 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-fast "${@}" --processes 2 --threads 1
-:: benchmark / server / http-fast / 4x1 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-fast "${@}" --processes 4 --threads 1
 :: benchmark / server / http-fast / 1x2 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-fast "${@}" --processes 1 --threads 2
 :: benchmark / server / http-fast / 2x2 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-fast "${@}" --processes 2 --threads 2
-:: benchmark / server / http-fast / 1x4 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-fast "${@}" --processes 1 --threads 4
 
 :: benchmark / server / http-go / 1x1 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-go "${@}" --processes 1 --threads 1
 :: benchmark / server / http-go / 2x1 :: exec -- "${ZRUN[@]}" ':: benchmark / server / inmem' http-go "${@}" --processes 2 --threads 1
@@ -252,15 +250,8 @@
 		;;
 	esac
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 0,1 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
-		env -i -- \
+		"${ZRUN[@]}" ':: benchmark / execute / server' \
+		noenvironment \
 	./.outputs/binaries/release/kawipiko-server \
 			"${_arguments[@]}" \
 			--archive "${_archive}" \
@@ -309,12 +300,22 @@
 
 << benchmark / server / profile / cpu / analyze
 	export -- PPROF_BINARY_PATH=./.outputs/binaries/release/kawipiko-server
-	exec -- go tool pprof "${@}" -- ./.outputs/server-cpu.txt
+	exec -- go tool pprof \
+			"${@}" \
+			-- ./.outputs/server-cpu.txt \
+	#
 !!
 
 << benchmark / server / profile / cpu / analyze / web
 	export -- PPROF_BINARY_PATH=./.outputs/binaries/release/kawipiko-server
-	exec -- go tool pprof -http 127.108.221.132:8080 -no_browser -functions -nodefraction 0 "${@}" -- ./.outputs/server-cpu.txt
+	exec -- go tool pprof \
+			-http 127.108.221.132:8080 \
+			-no_browser \
+			-functions \
+			-nodefraction 0 \
+			"${@}" \
+			-- ./.outputs/server-cpu.txt \
+	#
 !!
 
 << benchmark / server / profile / cpu / analyze / web-open
@@ -325,12 +326,22 @@
 
 << benchmark / server / profile / mem / analyze
 	export -- PPROF_BINARY_PATH=./.outputs/binaries/release/kawipiko-server
-	exec -- go tool pprof "${@}" -- ./.outputs/server-mem.txt
+	exec -- go tool pprof \
+			"${@}" \
+			-- ./.outputs/server-mem.txt \
+	#
 !!
 
 << benchmark / server / profile / mem / analyze / web
 	export -- PPROF_BINARY_PATH=./.outputs/binaries/release/kawipiko-server
-	exec -- go tool pprof -http 127.226.119.8:8080 -no_browser -functions -nodefraction 0 "${@}" -- ./.outputs/server-mem.txt
+	exec -- go tool pprof \
+			-http 127.226.119.8:8080 \
+			-no_browser \
+			-functions \
+			-nodefraction 0 \
+			"${@}" \
+			-- ./.outputs/server-mem.txt \
+	#
 !!
 
 << benchmark / server / profile / mem / analyze / web-open
@@ -341,24 +352,24 @@
 
 
 
-:: benchmark / dummy / fasthttp / 1x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / fasthttp' 1 "${@}"
-:: benchmark / dummy / fasthttp / 1x2 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / fasthttp' 2 "${@}"
-:: benchmark / dummy / fasthttp / 1x4 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / fasthttp' 4 "${@}"
+:: benchmark / dummy / fasthttp / 1x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / fasthttp' 1 1 "${@}"
+:: benchmark / dummy / fasthttp / 1x2 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / fasthttp' 1 2 "${@}"
+:: benchmark / dummy / fasthttp / 2x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / fasthttp' 2 1 "${@}"
+:: benchmark / dummy / fasthttp / 2x2 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / fasthttp' 2 2 "${@}"
 
 --<< benchmark / dummy / fasthttp
 	"${ZRUN[@]}" ':: go / build / server-dummy / release / quick'
+	test "${#}" -ge 2
+	_count="${1}"
+	_threads="${2}"
+	shift -- 2
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 0,1 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
-		env -i -- \
+		"${ZRUN[@]}" ':: benchmark / execute / multiple' "${_count}" \
+		"${ZRUN[@]}" ':: benchmark / execute / server' \
+		noenvironment \
 	./.outputs/binaries/release/kawipiko-server-dummy \
 			"127.9.185.194:8080" \
+			"${_threads}" \
 			"${@}" \
 	#
 !!
@@ -366,15 +377,8 @@
 
 << benchmark / dummy / haproxy / 1x2
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 0,1 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
-		env -i -- \
+		"${ZRUN[@]}" ':: benchmark / execute / server' \
+		noenvironment \
 	./.bin/haproxy \
 			-db \
 			-f ./examples/dummy/haproxy-dummy.conf \
@@ -383,17 +387,17 @@
 !!
 
 
-<< benchmark / dummy / nginx / 2x1
+:: benchmark / dummy / nginx / 1x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / nginx' 1 "${@}"
+:: benchmark / dummy / nginx / 2x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / nginx' 2 "${@}"
+
+--<< benchmark / dummy / nginx
+	test "${#}" -ge 1
+	_count="${1}"
+	shift -- 1
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 0,1 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
-		env -i -- \
+		"${ZRUN[@]}" ':: benchmark / execute / multiple' "${_count}" \
+		"${ZRUN[@]}" ':: benchmark / execute / server' \
+		noenvironment \
 	./.bin/nginx \
 			-c ./examples/dummy/nginx-dummy.conf \
 			-e /dev/stderr \
@@ -403,17 +407,16 @@
 !!
 
 
-<< benchmark / dummy / nodejs / 1x1
+:: benchmark / dummy / nodejs / 1x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / nodejs' 1 "${@}"
+
+--<< benchmark / dummy / nodejs
+	test "${#}" -ge 1
+	_count="${1}"
+	shift -- 1
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 0,1 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
-		env -i -- \
+		"${ZRUN[@]}" ':: benchmark / execute / multiple' "${_count}" \
+		"${ZRUN[@]}" ':: benchmark / execute / server' \
+		noenvironment \
 	./.bin/node16 \
 			-- \
 			./examples/dummy/nodejs-dummy.js \
@@ -423,36 +426,17 @@
 !!
 
 
-<< benchmark / dummy / httpterm / 2x1
-	_nodaemon="$( exec -- readlink -e -- "$( type -P -- nodaemon )" )"
-	if test ! "/proc/${PPID}/exe" -ef "${_nodaemon}" ; then
-		exec -- nodaemon "${ZRUN[@]}" ':: benchmark / dummy / httpterm / 2x1' "${@}"
-	fi
-	_pids=()
-	"${ZRUN[@]}" ':: benchmark / dummy / httpterm / 1x1' "${@}" & _pids+=( "${!}" )
-	"${ZRUN[@]}" ':: benchmark / dummy / httpterm / 1x1' "${@}" & _pids+=( "${!}" )
-	(
-		trap 'kill -- "${_pids[@]}" 2> /dev/null || true' SIGINT SIGTERM SIGQUIT
-		while sleep 1m ; do true ; done || true
-		kill -- "${_pids[@]}" 2> /dev/null || true
-	) &
-	exit -- 0
-!!
+:: benchmark / dummy / httpterm / 1x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / httpterm' 1 "${@}"
+:: benchmark / dummy / httpterm / 2x1 :: exec -- "${ZRUN[@]}" ':: benchmark / dummy / httpterm' 2 "${@}"
 
-<< benchmark / dummy / httpterm / 1x1
-	_nodaemon="$( exec -- readlink -e -- "$( type -P -- nodaemon )" )"
-	if test ! "/proc/${PPID}/exe" -ef "${_nodaemon}" ; then
-		exec -- nodaemon "${ZRUN[@]}" ':: benchmark / dummy / httpterm / 1x1' "${@}"
-	fi
+--<< benchmark / dummy / httpterm
+	test "${#}" -ge 1
+	_count="${1}"
+	shift -- 1
 	exec -- \
-		sudo -u root -n -E -P -- \
-		taskset -c 0,1 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
-		env -i \
+		"${ZRUN[@]}" ':: benchmark / execute / multiple' "${_count}" \
+		"${ZRUN[@]}" ':: benchmark / execute / server' \
+		noenvironment \
 	./.bin/httpterm \
 			-db \
 			-L 127.9.185.194:8080 \
@@ -491,14 +475,7 @@
 		_path=''
 	fi
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 2,3 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
+		"${ZRUN[@]}" ':: benchmark / execute / client' \
 	"${ZRUN[@]}" ':: tools / wrk' \
 			"${@}" \
 			-- \
@@ -525,14 +502,7 @@
 	_paths="${1}"
 	shift -- 1
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 2,3 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
+		"${ZRUN[@]}" ':: benchmark / execute / client' \
 	"${ZRUN[@]}" ':: tools / wrk' \
 			"${@}" \
 			--script ../kawipiko-examples/sources/wrk-paths-from-file.lua \
@@ -569,14 +539,7 @@
 		_path=''
 	fi
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 2,3 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
+		"${ZRUN[@]}" ':: benchmark / execute / client' \
 	"${ZRUN[@]}" ':: tools / h1load' \
 			"${@}" \
 			"${_url_base}/${_path}" \
@@ -614,14 +577,7 @@
 		_path=''
 	fi
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 2,3 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
+		"${ZRUN[@]}" ':: benchmark / execute / client' \
 	"${ZRUN[@]}" ':: tools / h2load' \
 			"${@}" \
 			-- \
@@ -656,14 +612,7 @@
 		_path=''
 	fi
 	exec -- \
-		nodaemon \
-		sudo -u root -n -E -P -- \
-		taskset -c 2,3 \
-		nice -n -19 -- \
-		ionice -c 2 -n 0 -- \
-		chrt -r 10 \
-		prlimit -n262144 -- \
-		sudo -u "${USER}" -n -E -P -- \
+		"${ZRUN[@]}" ':: benchmark / execute / client' \
 	"${ZRUN[@]}" ':: tools / hey' \
 			"${@}" \
 			-- \
@@ -671,3 +620,112 @@
 	#
 !!
 
+
+
+
+
+
+
+
+--<< benchmark / execute / server
+	test "${#}" -ge 1
+	_nodaemon="$( exec -- readlink -e -- "$( type -P -- nodaemon )" )"
+	if test ! "/proc/${PPID}/exe" -ef "${_nodaemon}" ; then
+		exec -- nodaemon "${ZRUN[@]}" ':: benchmark / execute / server' "${@}"
+	fi
+	_wrapper=()
+	if test "${1}" == noenvironment ; then
+		_wrapper+=( env -i -- )
+		shift -- 1
+		test "${#}" -ge 1
+	fi
+	if test "${1}" == "${ZRUN_EXECUTABLE}" ; then
+		test "${#}" -ge 1
+		_command=( "${@:2}" )
+	else
+		_command=( "${@}" )
+	fi
+	printf -- '\n[xx]  >>  %s\n\n' "${_command[*]@Q}" >&2
+	exec -- \
+		sudo -u root -n -E -P -- \
+		taskset -c 0,1 \
+		nice -n -19 -- \
+		ionice -c 2 -n 0 -- \
+		chrt -r 10 \
+		prlimit -n262144 -- \
+		sudo -u "${USER}" -n -E -P -- \
+		"${_wrapper[@]}" \
+		"${@}" \
+	#
+!!
+
+
+--<< benchmark / execute / client
+	test "${#}" -ge 1
+	_nodaemon="$( exec -- readlink -e -- "$( type -P -- nodaemon )" )"
+	if test ! "/proc/${PPID}/exe" -ef "${_nodaemon}" ; then
+		exec -- nodaemon "${ZRUN[@]}" ':: benchmark / execute / client' "${@}"
+	fi
+	_wrapper=()
+	if test "${1}" == noenvironment ; then
+		_wrapper+=( env -i -- )
+		shift -- 1
+		test "${#}" -ge 1
+	fi
+	if test "${1}" == "${ZRUN_EXECUTABLE}" ; then
+		test "${#}" -ge 1
+		_command=( "${@:2}" )
+	else
+		_command=( "${@}" )
+	fi
+	printf -- '\n[xx]  >>  %s\n\n' "${_command[*]@Q}" >&2
+	exec -- \
+		sudo -u root -n -E -P -- \
+		taskset -c 2,3 \
+		nice -n -19 -- \
+		ionice -c 2 -n 0 -- \
+		chrt -r 10 \
+		prlimit -n262144 -- \
+		sudo -u "${USER}" -n -E -P -- \
+		"${_wrapper[@]}" \
+		"${@}" \
+	#
+!!
+
+
+--<< benchmark / execute / multiple
+	test "${#}" -ge 2
+	_nodaemon="$( exec -- readlink -e -- "$( type -P -- nodaemon )" )"
+	if test ! "/proc/${PPID}/exe" -ef "${_nodaemon}" ; then
+		exec -- nodaemon "${ZRUN[@]}" ':: benchmark / execute / multiple' "${@}"
+	fi
+	_count="$( printf -- '%d' "${1}" )"
+	shift -- 1
+	if test "${_count}" -le 1 ; then
+		exec -- "${@}"
+	fi
+	_pids=()
+	for (( _index = 1 ; _index <= _count ; _index += 1 )) ; do
+		( sleep -- "$(( _index - 1 ))s" || true ; exec -- "${@}" ) &
+		_pids+=( "${!}" )
+	done
+	(
+		trap 'kill -- "${_pids[@]}" 2> /dev/null || true' SIGINT SIGTERM SIGQUIT
+		if ! sleep -- "$(( _count ))s" ; then
+			kill -- "${_pids[@]}" 2> /dev/null || true
+			exit -- 0
+		fi
+		printf -- '\n[--]\n\n' >&2
+		while true ; do
+			if ! kill -s 0 -- "${_pids[@]}" 2> /dev/null ; then
+				break
+			fi
+			if ! sleep -- 6s ; then
+				break
+			fi
+		done
+		kill -- "${_pids[@]}" 2> /dev/null || true
+	) &
+	exit -- 0
+!!
+
diff --git a/scripts/tools.z-run b/scripts/tools.z-run
index 0284074..ae91155 100644
--- a/scripts/tools.z-run
+++ b/scripts/tools.z-run
@@ -9,7 +9,6 @@
 	test "${#}" -ge 1
 	exec -- \
 		env -i -- \
-		./.bin/nodaemon \
 	./.bin/wrk \
 			--threads 1 \
 			--connections 1 \
@@ -30,13 +29,13 @@
 	test "${#}" -ge 1
 	exec -- \
 		env -i -- \
-		./.bin/nodaemon \
 	./.bin/h1load \
 			-t 1 \
 			-c 1 \
 			-w 1000 \
 			-d 30 \
 			-s 1 \
+			-l \
 			"${@}" \
 	#
 !!
@@ -50,7 +49,6 @@
 	test "${#}" -ge 1
 	exec -- \
 		env -i -- \
-		./.bin/nodaemon \
 	./.bin/h2load \
 			--threads 1 \
 			--clients 1 \
@@ -70,7 +68,6 @@
 	test "${#}" -ge 1
 	exec -- \
 		env -i -- \
-		./.bin/nodaemon \
 	./.bin/hey \
 			-cpus 1 \
 			-c 1 \
@@ -89,7 +86,6 @@
 	test "${#}" -ge 1
 	exec -- \
 		env -i -- \
-		./.bin/nodaemon \
 	./.bin/nghttp \
 			--no-verify-peer \
 			"${@}" \
@@ -105,7 +101,6 @@
 	test "${#}" -ge 1
 	exec -- \
 		env -i -- \
-		./.bin/nodaemon \
 	./.bin/curl \
 			--silent \
 			--insecure \