Hi Florin, thanks for your reply. Unfortunately, changing the "fifo size" to "4m" has not changed the performance that much. I've only got 2Gbps instead of 1.5Gbps. Moreover, I have checked both the "show errors" output and it looks like no errors are shown [1]. The "show run" output looks fine, which makes me think that VPP is actually loaded and running.
What is weird is that, sometimes, after a couple of runs, the application crashes with the following error: "vpp/src/svm/svm_fifo.c:410 (svm_fifo_init_ooo_lookup) assertion `!rb_tree_is_init (&f->ooo_deq_lookup)' fails" What is causing this error? Thanks again, Sebastiano [1] https://gist.github.com/sebymiano/8bc582bc6491cc88f5a608d4a83b25e9 Il giorno mar 21 lug 2020 alle ore 19:22 Florin Coras < fcoras.li...@gmail.com> ha scritto: > Hi Sebastiano, > > The test proxy application is just an example, so it’s far from optimized. > Nonetheless, last time I tested it was capable of saturating a 10Gbps nic. > So some things to consider while debugging: > - fifo size configuration. The wiki page does not set a fifo size and as a > result a small default is used. Try adding “fifo size 4096” to the “test > proxy” cli to force fifos of 4MB. > - check error counters with “show error” to see if tcp or the interfaces > exhibit other errors. > - see if vpp is actually loaded with “show run” (do a clear run to check > only recent data). > > Regards, > Florin > > On Jul 21, 2020, at 8:44 AM, Sebastiano Miano <mianosebasti...@gmail.com> > wrote: > > Dear all, > I was trying to test the performance of the VPP Host Stack, compared to > the one of the Linux kernel TCP/IP stack. > In particular, I was testing the TestProxy application [1] and compare it > with the simpleproxy application available at this URL [2]. > > My setup is composed of a server1, which runs the VPP test proxy > application attached to two physical interfaces (dual-port Intel > XL710 40GbE NIC). The application listens to TCP traffic on a given > IP1:port1 (interface 1) and forwards it to a "backend" server listening on > another IP2:port2 (interface 2). > Another server2 (same NIC) is running both an iperf3 client, which sends > traffic to the proxy at IP1:port1 and an iperf3 server, which receives > traffic on IP2:port2. Both iperf3 client and servers are running in two > different netns on server2 [3]. > The VPP startup configuration that I used is the following [4]. > > The configuration works fine, however, these are the results that I got: > VPP Test Proxy (VPP) - 1.50 Gbits/sec > Simpleproxy (Linux kernel) - 9.39 Gbits/sec > > I am wondering if there is something wrong with my setup/configuration, I > am quite new to VPP. > > Thank you in advance. > Sebastiano > > [1] https://wiki.fd.io/view/VPP/HostStack/TestProxy > [2] https://github.com/vzaliva/simpleproxy > [3] https://gist.github.com/sebymiano/0ff74ed0ec2805591fca7cd688b805d9 > [4] https://gist.github.com/sebymiano/f75c0f4d506fbf722cb2358b1deaa250 > > > >
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