Thanks Dave..
I am on vpp16.06 and after adding my nodes I get the following in “vppctl
show r”.
One thing I observe (as expected) is when I push more traffic to see higher
"Vectors/Call" the Clocks value of nodes reduces.
Now question is neither clocks or Vectors/Call indicate that still some
processing power is left.
By the way, what is prevailing vector size and per-node vector size in the
below output?
< last 128 main loops 0.00 per node 0.00> What are these values and why
these are zeros?
Thanks in advance.
root@ubuntu:~# vppctl show run
Time 1678.2, average vectors/node 1.45, last 128 main loops 0.00 per node
0.00
vector rates in 1.9800e4, out 1.9337e4, drop 4.6368e2, punt 6.9123e-2
Name State
Calls Vectors Suspends Clocks Vectors/Call
GigabitEthernet13/0/0-output active 117
117 0 2.71e3 1.00
GigabitEthernet13/0/0-tx active 117
117 0 1.94e4 1.00
GigabitEthernet1b/0/0-output active 22450924
32449638 0 1.26e3 1.45
GigabitEthernet1b/0/0-tx active 22450924
32449638 0 3.64e3 1.45
arp-input active
21064 22591 0 2.61e4 1.07
dpdk-input polling 388349175
33227874 0 2.54e4 .09
dpdk-process any wait
0 0 560 2.09e5 0.00
error-drop active 709544
778129 0 2.25e3 1.09
error-punt active
116 116 0 1.16e4 1.00
ethernet-input active 27238
28772 0 5.35e3 1.06
interface-output active
88 88 0 4.86e3 1.00
ip4-arp active
15 16 0 3.63e4 1.07
ip4-classify active
1600 1603 0 1.04e4 1.00
ip4-input-no-checksum active 22854016
33199102 0 1.79e3 1.45
ip4-local active 22841621
33173678 0 1.29e3 1.45
ip4-lookup active 45295061
65626189 0 1.51e3 1.45
ip4-lookup-multicast active 10723
22451 0 1.95e3 2.09
ip4-miss active 12074
23802 0 1.37e3 1.97
ip4-rewrite-transit active 22450827
32449541 0 1.47e3 1.45
ip4-udp-lookup active 22841621
33173678 0 1.29e3 1.45
llc-input active
3393 3394 0 4.01e3 1.00
mynode_lookup active 22841621
33173678 0 1.89e3 1.45
mynode_input active 22841621
33173678 0 1.49e3 1.45
unix-epoll-input polling
365372525 0 0 3.36e3 0.00
--------------------------
-Sakthivel S OM
On Mon, Jul 17, 2017 at 11:25 PM, Dave Barach (dbarach) <[email protected]>
wrote:
> The “show runtime” command displays the prevailing vector size, and
> per-node vector sizes.
>
>
>
> Those stats are reasonably equivalent to a vector engine load average.
>
>
>
> Thanks… Dave
>
>
>
> *From:* [email protected] [mailto:[email protected]] *On
> Behalf Of *SAKTHIVEL ANAND S
> *Sent:* Monday, July 17, 2017 12:57 PM
> *To:* chenxndsc <[email protected]>; vpp-dev <[email protected]>
> *Subject:* Re: [vpp-dev] 回复: vpp cpu usage utility
>
>
>
> Thanks chenxndsc for the response.
>
>
>
> Yes, the polling shall take the 100% CPU. My question is related to know
> how much more load a core can take more.
>
> For e.g. Lets say along with normal dpdk polling, if a core processeses
> few sessions, how much CPU it takes in processing sessions apart from
> polling. This is required to know how many sessions a can handle and hence
> how many cores are needed to handle desired number of sessions?
>
>
>
> -Sakthivel Ss
>
>
>
> On 17-Jul-2017 21:08, "chenxndsc" <[email protected]> wrote:
>
> hello ANAND
> 100% is the real cpu utilization, because VPP use POLL mode, if you know
> how DPDK works, you gotta to know it better.
>
> 来自我的华为手机
>
>
>
> -------- 原始邮件 --------
> 主题：[vpp-dev] vpp cpu usage utility
> 发件人：SAKTHIVEL ANAND S
> 收件人：vpp-dev
> 抄送：
>
>
> Hi
>
> I am working on an use case where i just want to measure CPU usage of vpp
> task.
>
> Linux "TOP" command shows 100% cpu always (even though there is no active
> processing in it,since it is running on closed/tight loop).
>
> Is there any way to measure "real/actual" cpu usage of VPP task?
>
> My setup: Ubuntu 16.04 with VPP16.06
>
>
> --
>
> Thanks in advance
> Sakthivel S OM
>
>
--
Thanks
Sakthivel S OM
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