Hi Dave,
Thanks for the mail
a "show run" command shows dpdk-input process on 2 of the workers but the
ip6-lookup process is running only on 1 worker.
What config should be done to make all threads process traffic.
This is for 4 workers and 1 main core.
Pasted output :
vpp# sh run
Thread 0 vpp_main (lcore 1)
Time 7.5, average vectors/node 0.00, last 128 main loops 0.00 per node 0.00
vector rates in 0.0000e0, out 0.0000e0, drop 0.0000e0, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
acl-plugin-fa-cleaner-process any wait 0 0
15 4.97e3 0.00
api-rx-from-ring active 0 0
79 1.07e5 0.00
cdp-process any wait 0 0
3 2.65e3 0.00
dpdk-process any wait 0 0
2 6.77e7 0.00
fib-walk any wait 0 0
7474 6.74e2 0.00
gmon-process time wait 0 0
1 4.24e3 0.00
ikev2-manager-process any wait 0 0
7 7.04e3 0.00
ip6-icmp-neighbor-discovery-ev any wait 0 0
7 4.67e3 0.00
lisp-retry-service any wait 0 0
3 7.21e3 0.00
unix-epoll-input polling 21655148 0
0 5.43e2 0.00
vpe-oam-process any wait 0 0
4 5.28e3 0.00
---------------
Thread 1 vpp_wk_0 (lcore 2)
Time 7.5, average vectors/node 255.99, last 128 main loops 14.00 per node
256.00
vector rates in 4.1903e6, out 4.1903e6, drop 0.0000e0, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
FortyGigabitEthernet4/0/0-outp active 123334 31572992
0 6.58e0 255.99
FortyGigabitEthernet4/0/0-tx active 123334 31572992
0 7.20e1 255.99
dpdk-input polling 124347 31572992
0 5.49e1 253.91
ip6-input active 123334 31572992
0 2.28e1 255.99
ip6-load-balance active 123334 31572992
0 1.61e1 255.99
ip6-lookup active 123334 31572992
0 3.77e2 255.99
ip6-rewrite active 123334 31572992
0 2.02e1 255.99
---------------
Thread 2 vpp_wk_1 (lcore 3)
Time 7.5, average vectors/node 0.00, last 128 main loops 0.00 per node 0.00
vector rates in 0.0000e0, out 0.0000e0, drop 0.0000e0, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
dpdk-input polling 83188682 0
0 1.11e2 0.00
---------------
Thread 3 vpp_wk_2 (lcore 18)
Time 7.5, average vectors/node 0.00, last 128 main loops 0.00 per node 0.00
vector rates in 0.0000e0, out 0.0000e0, drop 0.0000e0, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
---------------
Thread 4 vpp_wk_3 (lcore 19)
Time 7.5, average vectors/node 0.00, last 128 main loops 0.00 per node 0.00
vector rates in 0.0000e0, out 0.0000e0, drop 0.0000e0, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
Thanks,
Pragash Vijayaragavan
Grad Student at Rochester Institute of Technology
email : pxv3...@rit.edu
ph : 585 764 4662
On Mon, Nov 6, 2017 at 6:47 AM, Dave Barach (dbarach) <dbar...@cisco.com>
wrote:
> Have you verified that all of the worker threads are processing traffic?
> Sufficiently poor RSS statistics could mean - in the limit - that only one
> worker thread is processing traffic.
>
>
>
> Thanks… Dave
>
>
>
> *From:* Pragash Vijayaragavan [mailto:pxv3...@rit.edu]
> *Sent:* Sunday, November 5, 2017 10:03 PM
> *To:* vpp-dev@lists.fd.io
> *Cc:* John Marshall (jwm) <j...@cisco.com>; Neale Ranns (nranns) <
> nra...@cisco.com>; Dave Barach (dbarach) <dbar...@cisco.com>; Minseok
> Kwon <mxk...@rit.edu>
> *Subject:* multi-core multi-threading performance
>
>
>
> Hi ,
>
>
>
> We are measuring performance of ip6 lookup in multi-core multi-worker
> environments and
>
> we don't see good scaling of performance when we keep increasing the
> number of cores/workers.
>
>
>
> We are just changing the startup.conf file to create more workers,
> rx-queues, sock-mem etc. Should we do anything else to see an increase in
> performance.
>
>
>
> Is there a limitation on the performance even if we increase the number of
> workers.
>
>
>
> Is it dependent on the number of hardware NICs we have, we only have 1 NIC
> to receive the traffic.
>
>
>
>
>
> TIA,
>
>
> Thanks,
>
>
>
> Pragash Vijayaragavan
>
> Grad Student at Rochester Institute of Technology
>
> email : pxv3...@rit.edu
>
> ph : 585 764 4662 <(585)%20764-4662>
>
>
>
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