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

[Juan Salmon]

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> 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,
>
>
>
> [image: banner3a1]
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>
>
> *Matus Fabian*
>
> Engineer - Software
>
> matfa...@cisco.com
>
> Tel:
>
> *Cisco Systems, Inc.*
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>
>
>
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> *From:* Juan Salmon [mailto:salmonju...@gmail.com]
> *Sent:* Tuesday, December 20, 2016 8:59 AM
> *To:* Matus Fabian -X (matfabia - PANTHEON TECHNOLOGIES at Cisco) <
> matfa...@cisco.com>; 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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