Overview
Stateless mode で 2 Traffice Profile を用いて Two Direction (双方向）の Traffic を発生させる。
Network Diagram
t-rex-64 -i
root@svr-ub20:/opt/trex/v2.92# ./t-rex-64 -i
Starting Scapy server.... Scapy server is started
The ports are bound/configured.
Starting TRex v2.92 please wait ...
set driver name net_e1000_em
driver capability : TCP_UDP_OFFLOAD
set dpdk queues mode to ONE_QUE
Number of ports found: 2
zmq publisher at: tcp://*:4500
wait 1 sec .
port : 0
------------
link : link : Link Up - speed 1000 Mbps - full-duplex
promiscuous : 0
port : 1
------------
link : link : Link Up - speed 1000 Mbps - full-duplex
promiscuous : 0
number of ports : 2
max cores for 2 ports : 1 <--- Traffic Transmit and Recieve CPU
tx queues per port : 3
-------------------------------
RX core uses TX queue number 65535 on all ports
core, c-port, c-queue, s-port, s-queue, lat-queue
------------------------------------------
1 0 0 1 0 0
-------------------------------
-Per port stats table
ports | 0 | 1
-----------------------------------------------------------------------------------------
opackets | 0 | 0
obytes | 0 | 0
ipackets | 0 | 0
ibytes | 0 | 0
ierrors | 0 | 0
oerrors | 0 | 0
Tx Bw | 0.00 bps | 0.00 bps
-Global stats enabled
Cpu Utilization : 0.0 %
Platform_factor : 1.0
Total-Tx : 0.00 bps
Total-Rx : 0.00 bps
Total-PPS : 0.00 pps
Total-CPS : 0.00 cps
Expected-PPS : 0.00 pps
Expected-CPS : 0.00 cps
Expected-BPS : 0.00 bps
Active-flows : 0 Clients : 0 Socket-util : 0.0000 %
Open-flows : 0 Servers : 0 Socket : 0 Socket/Clients : -nan
drop-rate : 0.00 bps
current time : 7.2 sec
test duration : 0.0 sec
trex-console command
trex>start -p 0 -f rlab/HostAtoHostB.py -p 1 -f rlab/HostBtoHostA.py -m 10mbps -d 120
-p 0 -f rlab/HostAtoHostB.py // Port 0 から Traffic Profile HostAtoHostB.py の Traffic を送出
-p 1 -f rlab/HostBtoHostA.py // Port 1 から Traffic Profile HostBtoHost1.py の Traffic を送出
-m 10mbps // 10Mbps(L2) で Traffic を送出
-d 120 // 120秒間 Traffic を送出
Environment
$ cat /etc/os-release NAME="Ubuntu" VERSION="20.04.3 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.3 LTS" VERSION_ID="20.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=focal UBUNTU_CODENAME=focal $
Traffic Profile
HostAtoHostB.py
#
# Single Stream
# One Direction
#
from trex_stl_lib.api import *
import argparse
class STLS1(object):
def __init__ (self):
self.mode =0
self.fsize =64
def create_pkt_base (self):
t=[
Ether()/IP(src="16.0.0.1",dst="48.0.0.1")/UDP(dport=12,sport=1025)
]
return t[self.mode]
def create_stream (self):
# Create base packet and pad it to size
size = self.fsize - 4; # HW will add 4 bytes ethernet FCS
base_pkt = self.create_pkt_base ()
pad = max(0, size - len(base_pkt)) * 'x'
pkt = STLPktBuilder(pkt = base_pkt/pad,
vm = [])
return STLStream(packet = pkt,
mode = STLTXCont())
def get_streams (self, tunables, **kwargs):
parser = argparse.ArgumentParser(description='Argparser for {}'.format(os.path.basename(__file__)),
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
args = parser.parse_args(tunables)
# create 1 stream
return [ self.create_stream() ]
# dynamic load - used for trex console or simulator
def register():
return STLS1()
HostBtoHostA.py
#
# Single Stream
# One Direction
#
from trex_stl_lib.api import *
import argparse
class STLS1(object):
def __init__ (self):
self.mode =0
self.fsize =64
def create_pkt_base (self):
t=[
Ether()/IP(src="48.0.0.1",dst="16.0.0.1")/UDP(dport=12,sport=1025)
]
return t[self.mode]
def create_stream (self):
# Create base packet and pad it to size
size = self.fsize - 4; # HW will add 4 bytes ethernet FCS
base_pkt = self.create_pkt_base ()
pad = max(0, size - len(base_pkt)) * 'x'
pkt = STLPktBuilder(pkt = base_pkt/pad,
vm = [])
return STLStream(packet = pkt,
mode = STLTXCont())
def get_streams (self, tunables, **kwargs):
parser = argparse.ArgumentParser(description='Argparser for {}'.format(os.path.basename(__file__)),
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
args = parser.parse_args(tunables)
# create 1 stream
return [ self.create_stream() ]
# dynamic load - used for trex console or simulator
def register():
return STLS1()
trex-console
trex>clear <--- Counter Clear Clearing stats : [SUCCESS] 4.04 [ms] trex> trex> trex>stats Global Statistics connection : localhost, Port 4501 total_tx_L2 : 0 bps version : STL @ v2.92 total_tx_L1 : 0 bps cpu_util. : 0.0% @ 1 cores (1 per dual port) total_rx : 0 bps rx_cpu_util. : 0.0% / 0 pps total_pps : 0 pps async_util. : 0% / 9.62 bps drop_rate : 0 bps total_cps. : 0 cps queue_full : 0 pkts Port Statistics port | 0 | 1 | total -----------+-------------------+-------------------+------------------ owner | root | root | link | UP | UP | state | IDLE | IDLE | speed | 1 Gb/s | 1 Gb/s | CPU util. | 0.0% | 0.0% | -- | | | Tx bps L2 | 0 bps | 0 bps | 0 bps Tx bps L1 | 0 bps | 0 bps | 0 bps Tx pps | 0 pps | 0 pps | 0 pps Line Util. | 0 % | 0 % | --- | | | Rx bps | 0 bps | 0 bps | 0 bps Rx pps | 0 pps | 0 pps | 0 pps ---- | | | opackets | 0 | 0 | 0 ipackets | 0 | 0 | 0 obytes | 0 | 0 | 0 ibytes | 0 | 0 | 0 tx-pkts | 0 pkts | 0 pkts | 0 pkts rx-pkts | 0 pkts | 0 pkts | 0 pkts tx-bytes | 0 B | 0 B | 0 B rx-bytes | 0 B | 0 B | 0 B ----- | | | oerrors | 0 | 0 | 0 ierrors | 0 | 0 | 0 trex>start -p 0 -f rlab/HostAtoHostB.py -p 1 -f rlab/HostBtoHostA.py -m 10mbps -d 120 Removing all streams from port(s) [0._, 1._]: [SUCCESS] Attaching 1 streams to port(s) [0._]: [SUCCESS] Attaching 1 streams to port(s) [1._]: [SUCCESS] Starting traffic on port(s) [0._, 1._]: [SUCCESS] 18.27 [ms] trex> 2021-12-26 07:25:21 - [server][info] - Profile 0._ job done trex> 2021-12-26 07:25:21 - [server][info] - Port 0 job done trex> 2021-12-26 07:25:21 - [server][info] - Profile 1._ job done trex> 2021-12-26 07:25:21 - [server][info] - Port 1 job done trex>stats Global Statistics connection : localhost, Port 4501 total_tx_L2 : 2.07 Mbps version : STL @ v2.92 total_tx_L1 : 2.71 Mbps cpu_util. : 0.42% @ 1 cores (1 per dual port) total_rx : 1.94 Mbps rx_cpu_util. : 0.06% / 4.04 Kpps total_pps : 4.04 Kpps async_util. : 0% / 10.56 bps drop_rate : 0 bps total_cps. : 0 cps queue_full : 0 pkts Port Statistics port | 0 | 1 | total -----------+-------------------+-------------------+------------------ owner | root | root | link | UP | UP | state | IDLE | IDLE | speed | 1 Gb/s | 1 Gb/s | CPU util. | 0.0% | 0.0% | -- | | | Tx bps L2 | 1.03 Mbps | 1.03 Mbps | 2.07 Mbps Tx bps L1 | 1.36 Mbps | 1.36 Mbps | 2.71 Mbps Tx pps | 2.02 Kpps | 2.02 Kpps | 4.04 Kpps Line Util. | 0.14 % | 0.14 % | --- | | | Rx bps | 968.74 Kbps | 968.64 Kbps | 1.94 Mbps Rx pps | 2.02 Kpps | 2.02 Kpps | 4.04 Kpps ---- | | | opackets | 2343750 | 2343750 | 4687500 ipackets | 2343750 | 2343750 | 4687500 obytes | 150000000 | 150000000 | 300000000 ibytes | 141233340 | 141241200 | 282474540 <---- different input bytes tx-pkts | 2.34 Mpkts | 2.34 Mpkts | 4.69 Mpkts rx-pkts | 2.34 Mpkts | 2.34 Mpkts | 4.69 Mpkts tx-bytes | 150 MB | 150 MB | 300 MB rx-bytes | 141.23 MB | 141.24 MB | 282.47 MB ----- | | | oerrors | 0 | 0 | 0 ierrors | 0 | 0 | 0 trex>
Host CPU usage
top - 07:24:21 up 1:10, 4 users, load average: 1.42, 1.03, 0.60 Tasks: 166 total, 1 running, 165 sleeping, 0 stopped, 0 zombie %Cpu0 : 1.0 us, 0.0 sy, 0.0 ni, 99.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu1 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu2 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu3 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu4 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu5 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st MiB Mem : 16013.3 total, 10850.0 free, 4459.1 used, 704.1 buff/cache MiB Swap: 0.0 total, 0.0 free, 0.0 used. 11272.0 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2391 root 20 0 16.6g 19716 10216 S 200.7 0.1 12:48.32 _t-rex-64 1 root 20 0 167468 11384 8304 S 0.0 0.1 0:01.32 systemd 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 3 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_gp 4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_par_gp 6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H-kblockd 7 root 20 0 0 0 0 I 0.0 0.0 0:01.42 kworker/0:1-cgroup_destroy 9 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq 10 root 20 0 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/0 11 root 20 0 0 0 0 I 0.0 0.0 0:01.02 rcu_sched 12 root rt 0 0 0 0 S 0.0 0.0 0:00.03 migration/0 13 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/0 14 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0 15 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/1 16 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/1 17 root rt 0 0 0 0 S 0.0 0.0 0:00.37 migration/1 18 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1 20 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/1:0H-kblockd 21 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/2 22 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/2 23 root rt 0 0 0 0 S 0.0 0.0 0:00.37 migration/2 24 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/2 26 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/2:0H 27 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/3 28 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/3 29 root rt 0 0 0 0 S 0.0 0.0 0:00.37 migration/3 30 root 20 0 0 0 0 S 0.0 0.0 0:00.02 ksoftirqd/3 hyamazak@svr-ub20:~$
Result
Port 1 and Port 2 Input bytes are different. Because CPU 2 usage is 100%.