TREX not able to generate 40G traffic

[shant...@gmail.com]

HI all

I am using XL710 card on the TREX host and trying to generate 40Gbs traffic. BUt I see even for 1024 byte packet , max I see from TREX server is only 34Gbps is going.

Tried to distribute lcores as in below yamlo

is there some way we can optimize and get 40G traffic

-------------------------

/etc/trex_cfg.yaml

port_limit : 2
version : 2
#List of interfaces. Change to suit your setup. Use ./dpdk_setup_ports.py -s to see available options
interfaces : ["84:00.1","84:00.0"]
port_info : # Port IPs. Change to suit your needs. In case of loopback, you can leave as is.
- dest_mac : [0x00,0x50,0x56,0xb7,0xA6,0x49] # router mac addr should be taken from router
src_mac : [0x00,0x50,0x56,0x00,0x06,0x02] # source mac-addr - taken from ifconfig
- dest_mac : '00:50:56:b7:87:19'
src_mac : '00:50:56:00:06:02'
vlan : 220
vlan : 221
platform:

master_thread_id : 0
latency_thread_id : 7

dual_if:

- socket: 0
threads: [1,2,3,4,5,6,7,8,9,10]

- socket: 1
threads: [11,12,13,14]

Thanks

Ram

[hanoh haim]

Can you send the TUI output/command/profile?

Could you check bench.py 

Like this one, and send the output 

https://trex-tgn.cisco.com/trex/doc/trex_stateless_bench.html

Hanoh

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Hanoh

Sent from my iPhone

[sriramj...@gmail.com]

HI Hanoh,

Thanks for the response. I could not get bench.py output . getting errors.

here is the TUI output

Output is while testing 70bytes packet size. you can see 100% cpu utilization.

on 40G line, able to send only max of 8.06Gbps

-Per port stats table
ports | 0 | 1
-----------------------------------------------------------------------------------------
opackets | 1851899017 | 0
obytes | 129632930560 | 0
ipackets | 1851899448 | 5
ibytes | 129632958630 | 320
ierrors | 0 | 0
oerrors | 0 | 0
Tx Bw | 8.06 Gbps | 0.00 bps

-Global stats enabled
Cpu Utilization : 100.0 % 16.1 Gb/core
Platform_factor : 1.0
Total-Tx : 8.06 Gbps
Total-Rx : 8.06 Gbps
Total-PPS : 14.39 Mpps
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
Total_queue_full : 55684308
drop-rate : 0.00 bps
current time : 155.1 sec
test duration : 0.0 sec

-Per port stats table
ports | 0 | 1
-----------------------------------------------------------------------------------------
opackets | 1859183889 | 0
obytes | 130142871110 | 0
ipackets | 1859184331 | 5
ibytes | 130142900580 | 320
ierrors | 0 | 0
oerrors | 0 | 0
Tx Bw | 8.06 Gbps | 0.00 bps

-Global stats enabled
Cpu Utilization : 100.0 % 16.1 Gb/core
Platform_factor : 1.0
Total-Tx : 8.06 Gbps
Total-Rx : 8.06 Gbps
Total-PPS : 14.39 Mpps
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
Total_queue_full : 55906400
drop-rate : 0.00 bps
current time : 155.6 sec
test duration : 0.0 sec

Thanks

Ram

[hanoh haim]

This is not the TUI output. Please follow the pointer I’ve sent

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