On Thu, Aug 15, 2024 at 12:54:43AM +0200, Stefano Brivio wrote:
> We have a number of delays when we switch to new layouts that were
> added to make the tests visually easier to follow, together with
> blinking status bars. Shorten the delays and avoid blinking the
> status bar if $FAST is set to 1 (no demo mode).
> 
> Shorten delays in busy loops to 10ms, instead of 100ms, and skip the
> one-second fixed delay when we wait for the status of a command.
> 
> Cut the duration of throughput and latency tests to one second, down
> from ten. Somewhat surprisingly, the results we get are rather
> consistent, and not significantly different from what we'd get with
> 10 seconds.
> 
> This, together with Podman's commit 20f3e8909e3a ("test/system:
> pasta_test_do add explicit port check"), cuts the time needed on my
> setup for full test run from approximately 37 minutes to...:
> 
>   $ time ./run
>   [exited]
>   PASS: 165, FAIL: 0
>   Log at /home/sbrivio/passt/test/test_logs/test.log
> 
>   real	15m34.253s
>   user	0m0.011s
>   sys	0m0.011s
> 
> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

Marvelous!

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: David Gibson <david@gibson.dropbear.id.au>

> ---
>  test/lib/layout                | 14 +++++++-------
>  test/lib/term                  | 31 +++++++++++++++----------------
>  test/lib/test                  |  2 +-
>  test/pasta_options/log_to_file |  4 ++--
>  test/perf/passt_tcp            | 18 +++++++++---------
>  test/perf/passt_udp            |  2 +-
>  test/perf/pasta_tcp            | 34 +++++++++++++++++-----------------
>  test/perf/pasta_udp            |  2 +-
>  8 files changed, 53 insertions(+), 54 deletions(-)
> 
> diff --git a/test/lib/layout b/test/lib/layout
> index f9a1cf1..4d03572 100644
> --- a/test/lib/layout
> +++ b/test/lib/layout
> @@ -15,7 +15,7 @@
>  
>  # layout_pasta() - Panes for host, pasta, and separate one for namespace
>  layout_pasta() {
> -	sleep 3
> +	sleep 1
>  
>  	tmux kill-pane -a -t 0
>  	cmd_write 0 clear
> @@ -46,7 +46,7 @@ layout_pasta() {
>  
>  # layout_passt() - Panes for host, passt, and guest
>  layout_passt() {
> -	sleep 3
> +	sleep 1
>  
>  	tmux kill-pane -a -t 0
>  	cmd_write 0 clear
> @@ -77,7 +77,7 @@ layout_passt() {
>  
>  # layout_passt_in_pasta() - Host, passt within pasta, namespace and guest
>  layout_passt_in_pasta() {
> -	sleep 3
> +	sleep 1
>  
>  	tmux kill-pane -a -t 0
>  	cmd_write 0 clear
> @@ -113,7 +113,7 @@ layout_passt_in_pasta() {
>  
>  # layout_two_guests() - Two guest panes, two passt panes, plus host and log
>  layout_two_guests() {
> -	sleep 3
> +	sleep 1
>  
>  	tmux kill-pane -a -t 0
>  	cmd_write 0 clear
> @@ -152,7 +152,7 @@ layout_two_guests() {
>  
>  # layout_demo_pasta() - Four panes for pasta demo
>  layout_demo_pasta() {
> -	sleep 3
> +	sleep 1
>  
>  	cmd_write 0 cd ${BASEPATH}
>  	cmd_write 0 clear
> @@ -188,7 +188,7 @@ layout_demo_pasta() {
>  
>  # layout_demo_passt() - Four panes for passt demo
>  layout_demo_passt() {
> -	sleep 3
> +	sleep 1
>  
>  	cmd_write 0 cd ${BASEPATH}
>  	cmd_write 0 clear
> @@ -224,7 +224,7 @@ layout_demo_passt() {
>  
>  # layout_demo_podman() - Four panes for pasta demo with Podman
>  layout_demo_podman() {
> -	sleep 3
> +	sleep 1
>  
>  	cmd_write 0 cd ${BASEPATH}
>  	cmd_write 0 clear
> diff --git a/test/lib/term b/test/lib/term
> index 262937e..3834092 100755
> --- a/test/lib/term
> +++ b/test/lib/term
> @@ -97,7 +97,6 @@ display_delay() {
>  switch_pane() {
>  	tmux select-pane -t ${1}
>  	PR_DELAY=${PR_DELAY_INIT}
> -	display_delay "0.2"
>  }
>  
>  # cmd_write() - Write a command to a pane, letter by letter, and execute it
> @@ -199,7 +198,7 @@ pane_run() {
>  # $1:	Pane name
>  pane_wait() {
>  	__lc="$(echo "${1}" | tr [A-Z] [a-z])"
> -	sleep 0.1 || sleep 1
> +	sleep 0.01 || sleep 1
>  
>  	__done=0
>  	while
> @@ -207,7 +206,7 @@ pane_wait() {
>  		case ${__l} in
>  		*"$ " | *"# ") return ;;
>  		esac
> -	do sleep 0.1 || sleep 1; done
> +	do sleep 0.01 || sleep 1; done
>  }
>  
>  # pane_parse() - Print last line, @EMPTY@ if command had no output
> @@ -231,7 +230,7 @@ pane_status() {
>  
>  	__status="$(pane_parse "${1}")"
>  	while ! [ "${__status}" -eq "${__status}" ] 2>/dev/null; do
> -		sleep 1
> +		sleep 0.01 || sleep 1
>  		pane_run "${1}" 'echo $?'
>  		pane_wait "${1}"
>  		__status="$(pane_parse "${1}")"
> @@ -383,6 +382,16 @@ info_check_failed() {
>  	printf " < failed.\n" >> "${LOGFILE}"
>  }
>  
> +# status_bar_blink() - Make status bar blink
> +status_bar_blink() {
> +	for i in `seq 1 3`; do
> +		tmux set status-right-style 'bg=colour1 fg=colour196 bold'
> +		sleep 0.1 || sleep 1
> +		tmux set status-right-style 'bg=colour1 fg=colour233 bold'
> +		sleep 0.1 || sleep 1
> +	done
> +}
> +
>  # info_passed() - Display, log, and make status bar blink when a test passes
>  info_passed() {
>  	switch_pane ${PANE_INFO}
> @@ -391,12 +400,7 @@ info_passed() {
>  	log "...passed."
>  	log
>  
> -	for i in `seq 1 3`; do
> -		tmux set status-right-style 'bg=colour1 fg=colour2 bold'
> -		sleep "0.1"
> -		tmux set status-right-style 'bg=colour1 fg=colour233 bold'
> -		sleep "0.1"
> -	done
> +	[ ${FAST} -eq 1 ] || status_bar_blink
>  }
>  
>  # info_failed() - Display, log, and make status bar blink when a test passes
> @@ -407,12 +411,7 @@ info_failed() {
>  	log "...failed."
>  	log
>  
> -	for i in `seq 1 3`; do
> -		tmux set status-right-style 'bg=colour1 fg=colour196 bold'
> -		sleep "0.1"
> -		tmux set status-right-style 'bg=colour1 fg=colour233 bold'
> -		sleep "0.1"
> -	done
> +	[ ${FAST} -eq 1 ] || status_bar_blink
>  
>  	pause_continue \
>  		"Press any key to pause test session"		\
> diff --git a/test/lib/test b/test/lib/test
> index c525f8e..e6726be 100755
> --- a/test/lib/test
> +++ b/test/lib/test
> @@ -33,7 +33,7 @@ test_iperf3k() {
>  
>  	pane_or_context_run "${__sctx}" 'kill -INT $(cat s.pid); rm s.pid'
>  
> -	sleep 3		# Wait for kernel to free up ports
> +	sleep 1		# Wait for kernel to free up ports
>  }
>  
>  # test_iperf3() - Ugly helper for iperf3 directive
> diff --git a/test/pasta_options/log_to_file b/test/pasta_options/log_to_file
> index fe50e50..3ead06c 100644
> --- a/test/pasta_options/log_to_file
> +++ b/test/pasta_options/log_to_file
> @@ -19,7 +19,7 @@ sleep	1
>  endef
>  
>  def	flood_log_client
> -host	tcp_crr --nolog -P 10001 -C 10002 -6 -c -H ::1
> +host	tcp_crr --nolog -l1 -P 10001 -C 10002 -6 -c -H ::1
>  endef
>  
>  def	check_log_size_mountns
> @@ -42,7 +42,7 @@ pout	PID2 echo $!
>  check	head -1 __LOG_FILE__ | grep '^pasta .* [(]__PID2__[)]$'
>  
>  test	Maximum log size
> -passtb	./pasta --config-net -d -f -l __LOG_FILE__ --log-size $((100 * 1024)) -- sh -c 'while true; do tcp_crr --nolog -P 10001 -C 10002 -6; done'
> +passtb	./pasta --config-net -d -f -l __LOG_FILE__ --log-size $((100 * 1024)) -- sh -c 'while true; do tcp_crr --nolog -l1 -P 10001 -C 10002 -6; done'
>  sleep	1
>  
>  flood_log_client
> diff --git a/test/perf/passt_tcp b/test/perf/passt_tcp
> index 14343cb..695479f 100644
> --- a/test/perf/passt_tcp
> +++ b/test/perf/passt_tcp
> @@ -38,7 +38,7 @@ hout	FREQ_CPUFREQ (echo "scale=1"; printf '( %i + 10^5 / 2 ) / 10^6\n' $(cat /sy
>  hout	FREQ [ -n "__FREQ_CPUFREQ__" ] && echo __FREQ_CPUFREQ__ || echo __FREQ_PROCFS__
>  
>  set	THREADS 4
> -set	TIME 10
> +set	TIME 1
>  set	OMIT 0.1
>  set	OPTS -Z -P __THREADS__ -l 1M -O__OMIT__
>  
> @@ -75,7 +75,7 @@ lat	-
>  lat	-
>  lat	-
>  nsb	tcp_rr --nolog -6
> -gout	LAT tcp_rr --nolog -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +gout	LAT tcp_rr --nolog -l1 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 200 150
>  
>  tl	TCP CRR latency over IPv6: guest to host
> @@ -85,7 +85,7 @@ lat	-
>  lat	-
>  lat	-
>  nsb	tcp_crr --nolog -6
> -gout	LAT tcp_crr --nolog -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +gout	LAT tcp_crr --nolog -l1 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 500 400
>  
>  tr	TCP throughput over IPv4: guest to host
> @@ -119,7 +119,7 @@ lat	-
>  lat	-
>  lat	-
>  nsb	tcp_rr --nolog -4
> -gout	LAT tcp_rr --nolog -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +gout	LAT tcp_rr --nolog -l1 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 200 150
>  
>  tl	TCP CRR latency over IPv4: guest to host
> @@ -129,7 +129,7 @@ lat	-
>  lat	-
>  lat	-
>  nsb	tcp_crr --nolog -4
> -gout	LAT tcp_crr --nolog -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +gout	LAT tcp_crr --nolog -l1 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 500 400
>  
>  tr	TCP throughput over IPv6: host to guest
> @@ -153,7 +153,7 @@ lat	-
>  lat	-
>  guestb	tcp_rr --nolog -P 10001 -C 10011 -6
>  sleep	1
> -nsout	LAT tcp_rr --nolog -P 10001 -C 10011 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_rr --nolog -l1 -P 10001 -C 10011 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 200 150
>  
>  tl	TCP CRR latency over IPv6: host to guest
> @@ -164,7 +164,7 @@ lat	-
>  lat	-
>  guestb	tcp_crr --nolog -P 10001 -C 10011 -6
>  sleep	1
> -nsout	LAT tcp_crr --nolog -P 10001 -C 10011 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_crr --nolog -l1 -P 10001 -C 10011 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 500 350
>  
>  
> @@ -189,7 +189,7 @@ lat	-
>  lat	-
>  guestb	tcp_rr --nolog -P 10001 -C 10011 -4
>  sleep	1
> -nsout	LAT tcp_rr --nolog -P 10001 -C 10011 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_rr --nolog -l1 -P 10001 -C 10011 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 200 150
>  
>  tl	TCP CRR latency over IPv6: host to guest
> @@ -200,7 +200,7 @@ lat	-
>  lat	-
>  guestb	tcp_crr --nolog -P 10001 -C 10011 -4
>  sleep	1
> -nsout	LAT tcp_crr --nolog -P 10001 -C 10011 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_crr --nolog -l1 -P 10001 -C 10011 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  lat	__LAT__ 500 300
>  
>  te
> diff --git a/test/perf/passt_udp b/test/perf/passt_udp
> index 8919280..f25c903 100644
> --- a/test/perf/passt_udp
> +++ b/test/perf/passt_udp
> @@ -31,7 +31,7 @@ hout	FREQ_CPUFREQ (echo "scale=1"; printf '( %i + 10^5 / 2 ) / 10^6\n' $(cat /sy
>  hout	FREQ [ -n "__FREQ_CPUFREQ__" ] && echo __FREQ_CPUFREQ__ || echo __FREQ_PROCFS__
>  
>  set	THREADS 2
> -set	TIME 10
> +set	TIME 1
>  set	OPTS -u -P __THREADS__ --pacing-timer 1000
>  
>  info	Throughput in Gbps, latency in µs, __THREADS__ threads at __FREQ__ GHz
> diff --git a/test/perf/pasta_tcp b/test/perf/pasta_tcp
> index 8d2f911..a443f5a 100644
> --- a/test/perf/pasta_tcp
> +++ b/test/perf/pasta_tcp
> @@ -22,7 +22,7 @@ ns	/sbin/sysctl -w net.ipv4.tcp_timestamps=0
>  
>  
>  set	THREADS 4
> -set	TIME 10
> +set	TIME 1
>  set	OMIT 0.1
>  set	OPTS -Z -w 4M -l 1M -P __THREADS__ -O__OMIT__
>  
> @@ -46,13 +46,13 @@ iperf3k	host
>  
>  tl	TCP RR latency over IPv6: ns to host
>  hostb	tcp_rr --nolog -P 10003 -C 10013 -6
> -nsout	LAT tcp_rr --nolog -P 10003 -C 10013 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_rr --nolog -l1 -P 10003 -C 10013 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 150 100
>  
>  tl	TCP CRR latency over IPv6: ns to host
>  hostb	tcp_crr --nolog -P 10003 -C 10013 -6
> -nsout	LAT tcp_crr --nolog -P 10003 -C 10013 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_crr --nolog -l1 -P 10003 -C 10013 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 500 350
>  
> @@ -67,13 +67,13 @@ iperf3k	host
>  
>  tl	TCP RR latency over IPv4: ns to host
>  hostb	tcp_rr --nolog -P 10003 -C 10013 -4
> -nsout	LAT tcp_rr --nolog -P 10003 -C 10013 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_rr --nolog -l1 -P 10003 -C 10013 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 150 100
>  
>  tl	TCP CRR latency over IPv4: ns to host
>  hostb	tcp_crr --nolog -P 10003 -C 10013 -4
> -nsout	LAT tcp_crr --nolog -P 10003 -C 10013 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_crr --nolog -l1 -P 10003 -C 10013 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 500 350
>  
> @@ -87,13 +87,13 @@ iperf3k	ns
>  
>  tl	TCP RR latency over IPv6: host to ns
>  nsb	tcp_rr --nolog -P 10002 -C 10012 -6
> -hout	LAT tcp_rr --nolog -P 10002 -C 10012 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_rr --nolog -l1 -P 10002 -C 10012 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 150 100
>  
>  tl	TCP CRR latency over IPv6: host to ns
>  nsb	tcp_crr --nolog -P 10002 -C 10012 -6
> -hout	LAT tcp_crr --nolog -P 10002 -C 10012 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_crr --nolog -l1 -P 10002 -C 10012 -6 -c -H ::1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 1000 700
>  
> @@ -108,13 +108,13 @@ iperf3k	ns
>  
>  tl	TCP RR latency over IPv4: host to ns
>  nsb	tcp_rr --nolog -P 10002 -C 10012 -4
> -hout	LAT tcp_rr --nolog -P 10002 -C 10012 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_rr --nolog -l1 -P 10002 -C 10012 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 150 100
>  
>  tl	TCP CRR latency over IPv4: host to ns
>  nsb	tcp_crr --nolog -P 10002 -C 10012 -4
> -hout	LAT tcp_crr --nolog -P 10002 -C 10012 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_crr --nolog -l1 -P 10002 -C 10012 -4 -c -H 127.0.0.1 | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 1000 700
>  
> @@ -156,7 +156,7 @@ lat	-
>  lat	-
>  lat	-
>  hostb	tcp_rr --nolog -P 10003 -C 10013 -6
> -nsout	LAT tcp_rr --nolog -P 10003 -C 10013 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_rr --nolog -l1 -P 10003 -C 10013 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 150 100
>  
> @@ -165,7 +165,7 @@ lat	-
>  lat	-
>  lat	-
>  hostb	tcp_crr --nolog -P 10003 -C 10013 -6
> -nsout	LAT tcp_crr --nolog -P 10003 -C 10013 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_crr --nolog -l1 -P 10003 -C 10013 -6 -c -H __GW6__%__IFNAME__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 1500 500
>  
> @@ -193,7 +193,7 @@ lat	-
>  lat	-
>  lat	-
>  hostb	tcp_rr --nolog -P 10003 -C 10013 -4
> -nsout	LAT tcp_rr --nolog -P 10003 -C 10013 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_rr --nolog -l1 -P 10003 -C 10013 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 150 100
>  
> @@ -202,7 +202,7 @@ lat	-
>  lat	-
>  lat	-
>  hostb	tcp_crr --nolog -P 10003 -C 10013 -4
> -nsout	LAT tcp_crr --nolog -P 10003 -C 10013 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +nsout	LAT tcp_crr --nolog -l1 -P 10003 -C 10013 -4 -c -H __GW__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  hostw
>  lat	__LAT__ 1500 500
>  
> @@ -224,7 +224,7 @@ lat	-
>  lat	-
>  lat	-
>  nsb	tcp_rr --nolog -P 10002 -C 10012 -6
> -hout	LAT tcp_rr --nolog -P 10002 -C 10012 -6 -c -H __ADDR6__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_rr --nolog -l1 -P 10002 -C 10012 -6 -c -H __ADDR6__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 150 100
>  
> @@ -234,7 +234,7 @@ lat	-
>  lat	-
>  sleep	1
>  nsb	tcp_crr --nolog -P 10002 -C 10012 -6
> -hout	LAT tcp_crr --nolog -P 10002 -C 10012 -6 -c -H __ADDR6__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_crr --nolog -l1 -P 10002 -C 10012 -6 -c -H __ADDR6__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 5000 10000
>  
> @@ -256,7 +256,7 @@ lat	-
>  lat	-
>  lat	-
>  nsb	tcp_rr --nolog -P 10002 -C 10012 -4
> -hout	LAT tcp_rr --nolog -P 10002 -C 10012 -4 -c -H __ADDR__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_rr --nolog -l1 -P 10002 -C 10012 -4 -c -H __ADDR__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 150 100
>  
> @@ -266,7 +266,7 @@ lat	-
>  lat	-
>  sleep	1
>  nsb	tcp_crr --nolog -P 10002 -C 10012 -4
> -hout	LAT tcp_crr --nolog -P 10002 -C 10012 -4 -c -H __ADDR__ | sed -n 's/^throughput=\(.*\)/\1/p'
> +hout	LAT tcp_crr --nolog -l1 -P 10002 -C 10012 -4 -c -H __ADDR__ | sed -n 's/^throughput=\(.*\)/\1/p'
>  nsw
>  lat	__LAT__ 5000 10000
>  
> diff --git a/test/perf/pasta_udp b/test/perf/pasta_udp
> index 6acbfd3..9fed62e 100644
> --- a/test/perf/pasta_udp
> +++ b/test/perf/pasta_udp
> @@ -21,7 +21,7 @@ hout	FREQ_CPUFREQ (echo "scale=1"; printf '( %i + 10^5 / 2 ) / 10^6\n' $(cat /sy
>  hout	FREQ [ -n "__FREQ_CPUFREQ__" ] && echo __FREQ_CPUFREQ__ || echo __FREQ_PROCFS__
>  
>  set	THREADS 1
> -set	TIME 10
> +set	TIME 1
>  set	OPTS -u -P __THREADS__
>  
>  info	Throughput in Gbps, latency in µs, one thread at __FREQ__ GHz

-- 
David Gibson (he or they)	| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you, not the other way
				| around.
http://www.ozlabs.org/~dgibson