Hi, It looks like your linux vm iperf3 client could be saturated, so not sure if there’s more that could be done. You can control fifo size from vcl.conf (rx-fifo-size and tx-fifo-size).
Regards, Florin > On Jul 21, 2020, at 10:44 AM, sadhanakesa...@gmail.com wrote: > > hi Team, > i tried to run this for evaluating > https://wiki.fd.io/view/VPP/HostStack/LDP/iperf > <https://wiki.fd.io/view/VPP/HostStack/LDP/iperf> > with a linux client (centos 7 vm) and ubuntu kernel 4.15 (vpp server where > iperf3 runs) with uio_pci_generic driver > i am also getting close to 900 Mbits/sec vs 800 Mbits/sec for a linux > server/client iperf connectivity. > Is this usual or there are ways to explore other configuration params in the > vcl conf?
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