[dpdk-dev] [PATCH 0/2] L3FWD sample optimisation

[De Lara Guarch, Pablo]

Acked-by: Pablo de Lara Guarch <pablo.de.lara.guarch at intel.com>

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Konstantin Ananyev
> Sent: Thursday, May 22, 2014 5:56 PM
> To: dev at dpdk.org; dev at dpdk.org
> Subject: [dpdk-dev] [PATCH 0/2] L3FWD sample optimisation
> 
> With latest HW and optimised RX/TX path there is a huge gap between
> tespmd iofwd and l3fwd performance results.
> So there is an attempt to optimise l3fwd LPM code path and reduce the gap:
>  - Instead of processing each input packet up to completion -
>  divide packet processing into several stages and perform
>  stage by stage for the whole burst.
>  - Unroll things by the factor of 4 whenever possible.
>  - Use SSE instincts for some operations (bswap, replace MAC addresses, etc).
>  - Avoid TX packet buffering whenever possible.
>  - Move some checks from RX/TX into setup phase.
> 
>  app/test/test_lpm.c                             |   70 ++++
>  examples/l3fwd/main.c                           |  467 +++++++++++++++++++++-
>  lib/librte_eal/common/Makefile                  |    1 +
>  lib/librte_eal/common/include/rte_common_vect.h |   93 +++++
>  lib/librte_lpm/rte_lpm.h                        |  117 ++++++
>  5 files changed, 726 insertions(+), 22 deletions(-)
>  create mode 100644 lib/librte_eal/common/include/rte_common_vect.h
> 
> --
> 1.7.7.6