From: Shahaf Shuler <shahafs@mellanox.com>
To: "Yongseok Koh" <yskoh@mellanox.com>,
"Adrien Mazarguil" <adrien.mazarguil@6wind.com>,
"Nélio Laranjeiro" <nelio.laranjeiro@6wind.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-stable] [PATCH] net/mlx5: fix Rx buffer replenishment threshold
Date: Wed, 27 Jun 2018 10:46:08 +0000 [thread overview]
Message-ID: <DB7PR05MB4426F094F0480FED0FDEFBADC3480@DB7PR05MB4426.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <20180626113335.6854-1-yskoh@mellanox.com>
Tuesday, June 26, 2018 2:34 PM, Yongseok Koh:
> Subject: [PATCH] net/mlx5: fix Rx buffer replenishment threshold
>
> The threshold of buffer replenishment for vectorized Rx burst is a constant
> value (64). If the size of Rx queue is comparatively small, device could run out
> of buffers. For example, if the size of Rx queue is 128, buffers are
> replenished only twice per a wraparound. This can cause jitter in receiving
> packets and the jitter can cause unnecessary retransmission for TCP
> connections.
>
> Fixes: 6cb559d67b83 ("net/mlx5: add vectorized Rx/Tx burst for x86")
> Fixes: 570acdb1da8a ("net/mlx5: add vectorized Rx/Tx burst for ARM")
> Cc: stable@dpdk.org
>
> Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
> Acked-by: Shahaf Shuler <shahafs@mellanox.com>
Applied to next-net-mlx, thanks.
prev parent reply other threads:[~2018-06-27 10:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-26 11:33 Yongseok Koh
2018-06-27 10:46 ` Shahaf Shuler [this message]
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