Re: [vpp-dev] snat multi-thread support problem

[Matus Fabian -X (matfabia - PANTHEON TECHNOLOGIES at Cisco)]

Hi,

SNAT plugin cli config (there is only snat startup config)?

Regards,

[banner3a1]



Matus Fabian
Engineer - Software
matfa...@cisco.com<mailto:matfa...@cisco.com>
Tel:

Cisco Systems, Inc.



Slovakia
cisco.com


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From: Juan Salmon [mailto:salmonju...@gmail.com]
Sent: Tuesday, December 20, 2016 12:46 PM
To: Matus Fabian -X (matfabia - PANTHEON TECHNOLOGIES at Cisco) 
<matfa...@cisco.com>
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] snat multi-thread support problem

Hi,

Test Env:

I used trex as packet generator in client-server mode using two ports ,sending 
delay_10_https_0.pcap with 1.5 mpps.

the vpp/snat config:

dpdk {
  socket-mem 1024
  dev default {
    num-rx-queues 2
  }
  num-mbufs 131072
  no-multi-seg
}

cpu {
  workers 2
}

heapsize 3096M

snat {
  translation hash buckets 20971520
  translation hash memory 1073741824
  user hash buckets 12288
  user hash memory 20971520
  max translations per user 100000
}

And the multi-queue config:

vpp# sh dpdk interface placement
Thread 1 (vpp_wk_0 at lcore 1):
  TenGigabitEthernet5/0/0 queue 0
  TenGigabitEthernet5/0/1 queue 0
Thread 2 (vpp_wk_1 at lcore 2):
  TenGigabitEthernet5/0/0 queue 1
  TenGigabitEthernet5/0/1 queue 1


Best Regards,
Juan Salmon.

On Tue, Dec 20, 2016 at 1:27 PM, Matus Fabian -X (matfabia - PANTHEON 
TECHNOLOGIES at Cisco) <matfa...@cisco.com<mailto:matfa...@cisco.com>> wrote:
Hi,

Fix for port allocation was merged to master yesterday.
Could you please provide SNAT plugin configuration and some information about 
traffic, I didn’t see worker thread deadlock before when testing SNAT plugin.

Regards,

[banner3a1]



Matus Fabian
Engineer - Software
matfa...@cisco.com<mailto:matfa...@cisco.com>
Tel:

Cisco Systems, Inc.



Slovakia
cisco.com<http://cisco.com>


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print.

This email may contain confidential and privileged material for the sole use of 
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From: Juan Salmon [mailto:salmonju...@gmail.com<mailto:salmonju...@gmail.com>]
Sent: Tuesday, December 20, 2016 8:59 AM
To: Matus Fabian -X (matfabia - PANTHEON TECHNOLOGIES at Cisco) 
<matfa...@cisco.com<mailto:matfa...@cisco.com>>; 
vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] snat multi-thread support problem

Hi,
Thanks for your response Matus.
I've changed the code as you said. but after a few minutes VPP halts
and by entering any command, following message returned:

vlib_worker_thread_barrier_sync: worker thread deadlock
Failed to save post-mortem API trace to /tmp/api_post_mortem.15825
Best Regards,
Juan Salmon.


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