Hi Florin,
Thanks for the info. I pulled the latest and retried, things seem a bit better
now from a stability perspective. The performance issue looks like a CPU
limitation on the client side (10K loops/s) based on the results. I have these:
*Client* : Intel Xeon CPU E5-2650 v2 @ 2.60GHz - 1021
Hi Florin,
I got another test run and was able to do the clear run; show run as you
suggested about 10 seconds into the test run just before it ended. I'm not sure
where to see the loops/s stat, so I've pasted the output from both client and
server below if you would not mind pointing out what
Hi Florin,
Thanks once again! I was in the middle of collecting a bunch of information to
respond (basically nothing interesting in logs and the client does not crash,
it just sits there), and then on one miraculous run it actually worked. I was
hoping for a bit more performance (I only got 2.8
Hi Florin,
Thanks so much for trying this out and for the suggestions. Unfortunately this
isn't working in my setup. Here's what I did just to make sure I'm not missing
anything.
I generated the key and cert as follows:
*openssl req -newkey rsa:2048 -nodes -keyout ldp.key -x509 -days 365 -out
Hi Florin,
Thank you for your response. I used different rx/tx buffer sizes and it didn't
really make a difference. For this stage, it's good enough to know that there
are known performance limitations, thank you again for your help.
Regards,
Dom
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Hello,
I'm trying to get an idea of TLS throughput using openssl without hardware
acceleration, and I'm using the vpp_echo application as follows:
* *Server :* taskset --cpu-list 4,6,8 ./vpp_echo socket-name /tmp/vpp-api.sock
uri tls://10.0.0.71/ fifo-size 200 uni RX=50Gb TX=0 stats 1 s
Hi Florin,
I'm not sure why the echo app was crashing on me yesterday, built the debug
version, no crash, so I rebuilt the release version and also no crash. For some
reason, even though udp-cksum now shows as an active rx offload, the function
ip4_local_check_l4_csum is still being called, but
Hi again,
For what it's worth, I added a hack in src/plugins/dpdk/device/init.c and set
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM , and now I have:
vpp# sh hardware-interfaces
Name Idx Link Hardware
TenGigabitEthernet5/0/0 1 down TenGigabitEtherne
Hi Florin,
Thanks for the suggestion. It looks like in my case
*ip4_local_l4_csum_validate* is being called:
Breakpoint 1, ip4_local_l4_csum_validate (vm=0x7fffb4ecef40, p=0x10026d9980,
ip=0x10026d9a8e, is_udp=1 '\001',
error=0x7fffb517b1d8 "\016\023", good_tcp_udp=0x7fffb517b19d
"\177\001\001
[Edited Message Follows]
** Edit **: Corrected typo, udp-cksum not active in rx-offloads, but is active
in tx-offloads
Hi Florin,
Thanks for the response. I'm not so concerned about the packet drops (as you
point out it is to be expected), however increasing the number of rx
descriptors did h
Hi Florin,
Same NIC on both machines:
root# dpdk-devbind --status
Network devices using DPDK-compatible driver
:05:00.0 'Ethernet 10G 2P X520 Adapter 154d' drv=uio_pci_generic
unused=ixgbe
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Hi Florin,
Thanks for the response. I'm not so concerned about the packet drops (as you
point out it is to be expected), however increasing the number of rx
descriptors did help a lot, so thank you very much for that!
I'm still at around 6.5 Gbps, "sh session verbose" shows the following:
*Clie
Hello,
I've been trying to do some basic performance testing on 20.01 using the
vpp_echo application, and while I'm getting the expected performance with TCP,
I'm not quite able to achieve what I would expect with UDP. The NICs are 10G
X520, and on TCP I get around 9.5 Gbps, but with UDP I get
Hi Florin,
>From my logs it seems that TSO is not on even when using the native driver,
>logs attached below. I'm going to do a deeper dive into the various networking
>layers involved in this setup, will post any interesting findings back on this
>thread.
Thank you for all the help so far!
R
Hi,
I rebuilt VPP on master and updated startup.conf to enable tso as follows:
dpdk {
dev :00:03.0{
num-rx-desc 2048
num-tx-desc 2048
tso on
}
uio-driver vfio-pci
enable-tcp-udp-checksum
}
I'm not sure whether it is working or not, there is nothing in show session
verbose 2 to indicate whethe
Hi Florin,
The saga continues, a little progress and more questions. In order to reduce
the variables, I am now only using VPP on one of the VMs: iperf3 server is
running on a VM with native Linux networking, and iperf3+VCL client running on
the second VM.
I've pasted the output from a few com
Hi Florin,
Some progress, at least with the built-in echo app, thank you for all the
suggestions so far! By adjusting the fifo-size and testing in half-duplex I was
able to get close to 5 Gbps between the two openstack instances using the
built-in test echo app:
vpp# test echo clients gbytes 1
Hi Florin,
Those are tcp echo results. Note that the "show session verbose 2" command was
issued while there was still traffic being sent. Interesting that on the client
(sender) side the tx fifo is full (cursize 65534 nitems 65534) and on the
server (receiver) side the rx fifo is empty (cursiz
It turns out I was using DPDK virtio, with help from Moshin I changed the
configuration and tried to repeat the tests using VPP native virtio, results
are similar but there are some interesting new observations, sharing them here
in case they are useful to others or trigger any ideas.
After con
Hi,
Thank you Florin and Jerome for your time, very much appreciated.
* For VCL configuration, FIFO sizes are 16 MB
* "show session verbose 2" does not indicate any retransmissions. Here are the
numbers during a test run where approx. 9 GB were transferred (the difference
in values between clie
Hi all,
I've been running some performance tests and not quite getting the results I
was hoping for, and have a couple of related questions I was hoping someone
could provide some tips with. For context, here's a summary of the results of
TCP tests I've run on two VMs (CentOS 7 OpenStack instan
Hello,
I'm trying to run a simple test using the tcp_echo application using
19.08.1-release, but it just crashes pretty early on. I built a debug version
and tried to debug the crash that happens in mspace_malloc:
void* mspace_malloc(mspace msp, size_t bytes) {
mstate ms = (mstate)msp;
if (!ok_
Hi Bin & Neale,
I know this exchange is a couple of years old now, but I'm having the exact
issue where the Ping reply from VPP is being sent in cleartext rather than
going through the IPSec tunnel. Could you provide some information on how this
was resolved?
Thanks in advance.
Dom
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[Edited Message Follows]
Hello again,
My apologies if this is not the correct place for these kinds of question, I'm
relatively new to VPP. I would really appreciate any suggestions as to why the
response to a PING that was received over an IPSec tunnel is not going through
the tunnel as well,
Hello devs,
I've been trying to establish an IPSec tunnel between libreswan and VPP using
IKEv2, I'm able to get the tunnel established and packets coming in to VPP
decrypted, but it looks like outbound packets from VPP are not going through
IPSec. The VPP trace is shown below where I can see a
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