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From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: Matan Azrad <matan@mellanox.com>
Cc: dev@dpdk.org, Ophir Munk <ophirmu@mellanox.com>
Subject: Re: [dpdk-dev] [PATCH v4 8/8] net/mlx4: mitigate Tx path memory barriers
Date: Thu, 2 Nov 2017 14:43:24 +0100	[thread overview]
Message-ID: <20171102134324.GG24849@6wind.com> (raw)
In-Reply-To: <1509474093-31388-9-git-send-email-matan@mellanox.com>

On Tue, Oct 31, 2017 at 06:21:33PM +0000, Matan Azrad wrote:
> Replace most of the memory barriers by IO memory barriers since they
> are all targeted to the DRAM; This improves code efficiency for
> systems which force store order between different addresses.
> 
> Only the doorbell register store should be protected by memory barrier
> since it is targeted to the PCI memory domain.
> 
> Limit pre byte count store IO memory barrier for systems with cache
> line size smaller than 64B (TXBB size).
> 
> This patch improves Tx performance by 0.2MPPS for one segment 64B
> packets via 1 queue with 1 core test.
> 
> Signed-off-by: Matan Azrad <matan@mellanox.com>

Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

-- 
Adrien Mazarguil
6WIND

  reply	other threads:[~2017-11-02 13:43 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1508752838-30408-1-git-send-email-ophirmu@mellanox.com>
2017-10-23 14:21 ` [dpdk-dev] [PATCH v2 0/7] net/mlx4: follow-up on new TX datapath introduced in RC1 Ophir Munk
2017-10-23 14:21   ` [dpdk-dev] [PATCH v2 1/7] net/mlx4: remove error flows from Tx fast path Ophir Munk
2017-10-25 16:49     ` Adrien Mazarguil
2017-10-23 14:21   ` [dpdk-dev] [PATCH v2 2/7] net/mlx4: inline more Tx functions Ophir Munk
2017-10-25 16:49     ` Adrien Mazarguil
2017-10-25 21:42       ` Ophir Munk
2017-10-26  7:48         ` Adrien Mazarguil
2017-10-26 14:27           ` Ophir Munk
2017-10-29 19:30             ` Ophir Munk
2017-10-23 14:21   ` [dpdk-dev] [PATCH v2 3/7] net/mlx4: save lkey in big-endian format Ophir Munk
2017-10-23 15:24     ` Nélio Laranjeiro
2017-10-23 14:21   ` [dpdk-dev] [PATCH v2 4/7] net/mlx4: merge Tx path functions Ophir Munk
2017-10-24 13:51     ` Nélio Laranjeiro
2017-10-24 20:36       ` Ophir Munk
2017-10-25  7:50         ` Nélio Laranjeiro
2017-10-26 10:31           ` Matan Azrad
2017-10-26 12:12             ` Nélio Laranjeiro
2017-10-26 12:30               ` Matan Azrad
2017-10-26 13:44                 ` Nélio Laranjeiro
2017-10-26 16:21                   ` Matan Azrad
2017-10-23 14:21   ` [dpdk-dev] [PATCH v2 5/7] net/mlx4: remove unnecessary variables in Tx burst Ophir Munk
2017-10-25 16:49     ` Adrien Mazarguil
2017-10-23 14:21   ` [dpdk-dev] [PATCH v2 6/7] net/mlx4: improve performance of one Tx segment Ophir Munk
2017-10-25 16:50     ` Adrien Mazarguil
2017-10-23 14:22   ` [dpdk-dev] [PATCH v2 7/7] net/mlx4: separate Tx for multi-segments Ophir Munk
2017-10-25 16:50     ` Adrien Mazarguil
2017-10-30  8:15       ` Ophir Munk
2017-10-30 10:07   ` [dpdk-dev] [PATCH v3 0/7] Tx path improvements Matan Azrad
2017-10-30 10:07     ` [dpdk-dev] [PATCH v3 1/7] net/mlx4: remove error flows from Tx fast path Matan Azrad
2017-10-30 14:23       ` Adrien Mazarguil
2017-10-30 18:11         ` Matan Azrad
2017-10-31 10:16           ` Adrien Mazarguil
2017-10-30 10:07     ` [dpdk-dev] [PATCH v3 2/7] net/mlx4: associate MR to MP in a short function Matan Azrad
2017-10-30 14:23       ` Adrien Mazarguil
2017-10-31 13:25         ` Ophir Munk
2017-10-30 10:07     ` [dpdk-dev] [PATCH v3 3/7] net/mlx4: merge Tx path functions Matan Azrad
2017-10-30 14:23       ` Adrien Mazarguil
2017-10-30 18:12         ` Matan Azrad
2017-10-30 10:07     ` [dpdk-dev] [PATCH v3 4/7] net/mlx4: remove completion counter in Tx burst Matan Azrad
2017-10-30 14:23       ` Adrien Mazarguil
2017-10-30 10:07     ` [dpdk-dev] [PATCH v3 5/7] net/mlx4: separate Tx segment cases Matan Azrad
2017-10-30 14:23       ` Adrien Mazarguil
2017-10-30 18:23         ` Matan Azrad
2017-10-31 10:17           ` Adrien Mazarguil
2017-10-30 10:07     ` [dpdk-dev] [PATCH v3 6/7] net/mlx4: mitigate Tx path memory barriers Matan Azrad
2017-10-30 14:23       ` Adrien Mazarguil
2017-10-30 19:47         ` Matan Azrad
2017-10-31 10:17           ` Adrien Mazarguil
2017-10-31 11:35             ` Matan Azrad
2017-10-31 13:21               ` Adrien Mazarguil
2017-10-30 10:07     ` [dpdk-dev] [PATCH v3 7/7] net/mlx4: remove empty Tx segment support Matan Azrad
2017-10-30 14:24       ` Adrien Mazarguil
2017-10-31 18:21     ` [dpdk-dev] [PATCH v4 0/8] net/mlx4: Tx path improvements Matan Azrad
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 1/8] net/mlx4: remove error flows from Tx fast path Matan Azrad
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 2/8] net/mlx4: associate MR to MP in a short function Matan Azrad
2017-11-02 13:42         ` Adrien Mazarguil
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 3/8] net/mlx4: fix ring wraparound compiler hint Matan Azrad
2017-11-02 13:42         ` Adrien Mazarguil
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 4/8] net/mlx4: merge Tx path functions Matan Azrad
2017-11-02 13:42         ` Adrien Mazarguil
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 5/8] net/mlx4: remove duplicate handling in Tx burst Matan Azrad
2017-11-02 13:42         ` Adrien Mazarguil
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 6/8] net/mlx4: separate Tx segment cases Matan Azrad
2017-11-02 13:43         ` Adrien Mazarguil
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 7/8] net/mlx4: fix HW memory optimizations careless Matan Azrad
2017-11-02 13:43         ` Adrien Mazarguil
2017-10-31 18:21       ` [dpdk-dev] [PATCH v4 8/8] net/mlx4: mitigate Tx path memory barriers Matan Azrad
2017-11-02 13:43         ` Adrien Mazarguil [this message]
2017-11-02 13:41       ` [dpdk-dev] [PATCH] net/mlx4: fix missing include Adrien Mazarguil
2017-11-02 20:35         ` Ferruh Yigit
2017-11-02 16:42     ` [dpdk-dev] [PATCH v5 0/8] net/mlx4: Tx path improvements Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 1/8] net/mlx4: remove error flows from Tx fast path Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 2/8] net/mlx4: associate MR to MP in a short function Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 3/8] net/mlx4: fix ring wraparound compiler hint Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 4/8] net/mlx4: merge Tx path functions Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 5/8] net/mlx4: remove duplicate handling in Tx burst Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 6/8] net/mlx4: separate Tx segment cases Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 7/8] net/mlx4: fix HW memory optimizations careless Matan Azrad
2017-11-02 16:42       ` [dpdk-dev] [PATCH v5 8/8] net/mlx4: mitigate Tx path memory barriers Matan Azrad
2017-11-02 17:07       ` [dpdk-dev] [PATCH v5 0/8] net/mlx4: Tx path improvements Adrien Mazarguil
2017-11-02 20:35         ` Ferruh Yigit
2017-11-02 20:41       ` Ferruh Yigit
2017-11-03  9:48         ` Adrien Mazarguil
2017-11-03 19:25       ` Ferruh Yigit

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