.fd.io>
Subject: Re: [vpp-dev] TCP performance - TSO - HW offloading in general.
Hi Luca,
Not really sure why the kernel is slow to reply to ping. Maybe it has to do
with scheduling but it’s just guess work.
I’ve never tried hping. Let me see if I understand your scenario: while running
iperf
ust be the reason.
>
> Luca
>
>
>
> From: Florin Coras <fcoras.li...@gmail.com>
> Date: Friday 11 May 2018 at 23:02
> To: Luca Muscariello <lumuscar+f...@cisco.com>
> Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
> Subject: Re: [vpp-dev] T
com>
Date: Thursday 10 May 2018 at 13:52
To: Florin Coras <fcoras.li...@gmail.com>
Cc: Luca Muscariello <lumuscar+f...@cisco.com>, "vpp-dev@lists.fd.io"
<vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] TCP performance - TSO - HW offloading in general.
MTU had no eff
<lumus...@cisco.com>
Cc: Luca Muscariello <lumuscar+f...@cisco.com>, "vpp-dev@lists.fd.io"
<vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] TCP performance - TSO - HW offloading in general.
Hi Luca,
We don’t yet support pmtu in the stack so tcp uses a fixed 1460 mtu, unle
ready.
>
> Luca
>
>
> From: Florin Coras <fcoras.li...@gmail.com>
> Date: Monday 7 May 2018 at 22:23
> To: Luca Muscariello <lumus...@cisco.com>
> Cc: Luca Muscariello <lumuscar+f...@cisco.com>, "vpp-dev@lists.fd.io"
> <vpp-dev@lists.fd.io&
gt;
Cc: Luca Muscariello <lumuscar+f...@cisco.com>, "vpp-dev@lists.fd.io"
<vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] TCP performance - TSO - HW offloading in general.
Yes, the whole host stack uses shared memory segments and fifos that the
session layer manages. For a brief descript
Hi Florin
Thanks for the info.
So, how do you explain VPP TCP stack beats Linux
implementation by doubling the goodput?
Does it come from vectorization?
Any special memif optimization underneath?
Luca
On 7 May 2018, at 18:17, Florin Coras
Hi Luca,
We don’t yet support TSO because it requires support within all of vpp (think
tunnels). Still, it’s on our list.
As for crypto offload, we do have support for IPSec offload with QAT cards and
we’re now working with Ping and Ray from Intel on accelerating the TLS OpenSSL
engine also
Hi,
A few questions about the TCP stack and HW offloading.
Below is the experiment under test.
++ +---+
| +-+ DPDK-10GE| |
|Iperf3| TCP | ++ |TCP Iperf3
|
