Good morning..
Sharing my test results. Might be helpful, in case if this path is desired.
Hypervisor : Hyper-V
Guest : Linux 4.14
Processor : 2690v2
# of vCpus : 4
Packet flow:
Host --> Kernel -->dpdk-->Kernel-->Host ( data plane traffic )
Packet types: UDP streams
I was able to comfortably reach abot ~28K-30K pps. Packet loss occurs at about
or after that. Traffic was real-time latency sensitive.
Great day
--GG
From: Wiles, Keith <[email protected]>
Sent: Tuesday, May 29, 2018 11:53 AM
To: Giridharan, Ganesan <[email protected]>
Cc: [email protected]
Subject: Re: [dpdk-users] TAP-PMD & tap-device PPS via Kernel
________________________________
NOTICE: This email was received from an EXTERNAL sender
________________________________
> On May 29, 2018, at 11:12 AM, Giridharan, Ganesan
> <[email protected]<mailto:[email protected]>> wrote:
>
> Good morning. Would like to know some numbers, especially PPS, using TAP
> device and TAP PMD combo to fetch packets to DPDK application. Wondering do
> those numbers change as Hypervisor platforms change? Assuming the resources
> (vCpu & memory) are unchanged across platforms. Mainly interested in PPS
> measured on ESXi/KVM/Hyper-V platforms.
I have never run TAP PMD in ESXi/KVM/Hyper-V so I do not know the numbers. The
performance of the DPDK TAP PMD is not going to be much better then any other
design using tun/tap as the kernel is still involved in the movement of data.
The TAP PMD was created to allow me to test applications with DPDK on a system
without real NICs like my MACBook Pro I have a port of DPDK for a MAC. The TAP
interface should only be used for testing or if you need connectivity to the
host/another TAP device. With Pktgen I use it to connect to wireshark to decode
packets.
>
> Appreciate the share if anyone might possess test results.
>
> Thanks
>
> Great day
> --GG
Regards,
Keith
