Hi,
I have done below 10Gb interface tests using netsniff-ng-0.5.9 under Ubuntu
14.04 LTS x64 but found that there're more than half of the traffic dropped
during capturing the traffic to the files:
1. Server1: run iperf -s
2. Server1: capture the traffic using netsniff-ng
3. Server2: run iperf -c x.x.x.x -t 100. (Network Utilization was over 90%
or 8Gb/sec)
4. Version: netsniff-ng-0.5.9
Is there anyway to resolve it? If the traffic was lower than 1Gb, this
problem doesn't occur.
Thanks in advance.
Best Regards,
Ivan Cheng
--------------------------------------------------
Test Result:
Server1:
# /usr/local/sbin/netsniff-ng -b 16 -i any -o /data/pcap/ -P "test-" -S
2GiB -s -V -H -J -F 500MiB
pcap file I/O method: scatter-gather
RX,V3: 2048.00 MiB, 32768 Blocks, each 65536 Byte allocated
Running! Hang up with ^C!
[ 4] local 192.168.200.2 port 5001 connected with 192.168.200.1 port 48511
.(+189550/-0).(+311899/-229105).(+94141/-650675).(+94434/-655971).(+94520/-661770).(+94957/-656108).(+94294/-655801).(+93884/-652061).(+94467/-652528).(+94308/-657827).(+94541/-678354).(+94247/-672099).(+94307/-678535).(+93657/-682063).(+94537/-677862).(+93673/-678498).(+93940/-672579).(+94652/-678580).(+94376/-674936).(+94673/-675870).(+94017/-678660).(+94617/-682085).(+94629/-672379).(+94177/-680516).(+94175/-671915).(+94143/-682812).(+94555/-678232)
[ 4] 0.0-100.0 sec 109 GBytes 9.38 Gbits/sec
.(+40865/-4864).(+52/-0).(+34/-0)
# /usr/local/sbin/netsniff-ng -b 16 -i any -o /data/pcap/ -P "test-" -S
500MiB -s -V -H -J -F 500MiB
pcap file I/O method: scatter-gather
RX,V3: 500.00 MiB, 8000 Blocks, each 65536 Byte allocated
Running! Hang up with ^C!
[ 5] local 192.168.200.2 port 5001 connected with 192.168.200.1 port 48512
.(+173863/-28474).(+97421/-456830).(+96685/-684605).(+97628/-687301).(+97473/-686187).(+97513/-685249)[
5] 0.0-20.0 sec 21.8 GBytes 9.37 Gbits/sec
Server2:
# iperf -c 192.168.200.2 -t 100
------------------------------------------------------------
Client connecting to 192.168.200.2, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.200.1 port 48511 connected with 192.168.200.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-100.0 sec 109 GBytes 9.38 Gbits/sec
# iperf -c 192.168.200.2 -t 20
------------------------------------------------------------
Client connecting to 192.168.200.2, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.200.1 port 48512 connected with 192.168.200.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-20.0 sec 21.8 GBytes 9.38 Gbits/sec
---------------------------------------------------
HW & OS config:
- 2 x Prolant 380 G7 servers with 16G RAM
- 1 10Gb NIC for each server
- Ubuntu v14.04 LTS x64
# uname -a
Linux BL380G7-01 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
# lspci -v -s 0b:00.0
0b:00.0 Ethernet controller: NetXen Incorporated NX3031 Multifunction
1/10-Gigabit Server Adapter (rev 42)
Subsystem: Hewlett-Packard Company NC522SFP Dual Port 10GbE Server
Adapter
Physical Slot: 2
Flags: bus master, fast devsel, latency 0, IRQ 31
Memory at fbe00000 (64-bit, non-prefetchable) [size=2M]
Memory at f8000000 (64-bit, non-prefetchable) [size=32M]
[virtual] Expansion ROM at df100000 [disabled] [size=64K]
Capabilities: [40] MSI-X: Enable+ Count=64 Masked-
Capabilities: [80] Power Management version 3
Capabilities: [a0] MSI: Enable- Count=1/32 Maskable- 64bit+
Capabilities: [c0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 59-69-46-61-6e-48-73-75
Kernel driver in use: netxen_nic
# modinfo netxen_nic
filename:
/lib/modules/3.13.0-24-generic/kernel/drivers/net/ethernet/qlogic/netxen/netxen_nic.ko
firmware: phanfw.bin
version: 4.0.82
license: GPL
description: QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver
srcversion: 74E26B6913A817FEB3498A9
alias: pci:v00004040d00000100sv*sd*bc02sc00i00*
alias: pci:v00004040d00000025sv*sd*bc02sc00i00*
alias: pci:v00004040d00000024sv*sd*bc02sc00i00*
alias: pci:v00004040d00000005sv*sd*bc02sc00i00*
alias: pci:v00004040d00000004sv*sd*bc02sc00i00*
alias: pci:v00004040d00000003sv*sd*bc02sc00i00*
alias: pci:v00004040d00000002sv*sd*bc02sc00i00*
alias: pci:v00004040d00000001sv*sd*bc02sc00i00*
depends:
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 00:A5:A6:57:59:DE:47:4B:C5:C4:31:20:88:0C:1B:94:A5:39:F4:31
sig_hashalgo: sha512
parm: auto_fw_reset:Auto firmware reset (0=disabled, 1=enabled
(int)
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