[dpdk-users] lots of TX-dropped when run testpmd
温泽润物
37442693 at qq.com
Thu Jun 30 08:28:19 CEST 2016
hi,
I'm testing dpdk on ubuntu 14, it's quite easy to try dpdk with tools/setup.sh now. but i am confusing that there is always TX-dropped when test with testpmd, i changed the burst num from 32 to 8, but still lots of TX-dropped happened.
so anyone can share some ideas ? why so many TX-dropped ?
Details:
Enviroment:
Linux ubuntu14319 3.19.0-25-generic #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
gcc version 4.8.5 (Ubuntu 4.8.5-2ubuntu1~14.04.1)
CPU: 2*6 cores
root at ubuntu14319:~/dpdk16/x86_64-native-linuxapp-gcc/app# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 63
model name : Intel(R) Xeon(R) CPU E5-2603 v3 @ 1.60GHz
stepping : 2
microcode : 0x36
cpu MHz : 1599.998
cache size : 15360 KB
physical id : 0
siblings : 6
core id : 0
cpu cores : 6
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 15
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx hypervisor lahf_lm arat epb pln pts dtherm
bugs :
bogomips : 3199.99
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
NIC binding:
Network devices using DPDK-compatible driver
============================================
0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper)' drv=igb_uio unused=
0000:02:02.0 '82545EM Gigabit Ethernet Controller (Copper)' drv=igb_uio unused=
Network devices using kernel driver
===================================
0000:03:00.0 'VMXNET3 Ethernet Controller' if=eth0 drv=vmxnet3 unused=igb_uio *Active*
Other network devices
=====================
testpmd:
testpmd> start
io packet forwarding - CRC stripping disabled - packets/burst=32
nb forwarding cores=1 - nb forwarding ports=2
RX queues=1 - RX desc=128 - RX free threshold=0
RX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX queues=1 - TX desc=512 - TX free threshold=0
TX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX RS bit threshold=0 - TXQ flags=0x0
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 1977364 RX-dropped: 0 RX-total: 1977364
TX-packets: 1852639 TX-dropped: 113346 TX-total: 1965985
----------------------------------------------------------------------------
---------------------- Forward statistics for port 1 ----------------------
RX-packets: 1966151 RX-dropped: 0 RX-total: 1966151
TX-packets: 1864575 TX-dropped: 112789 TX-total: 1977364
----------------------------------------------------------------------------
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 3943515 RX-dropped: 0 RX-total: 3943515
TX-packets: 3717214 TX-dropped: 226135 TX-total: 3943349
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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