linux-kernel - Re: [PATCH v3] net: bcmgenet: fix throughtput regression

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Date:	Sun, 01 Mar 2015 00:30:07 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	jaedon.shin@...il.com
Cc:	f.fainelli@...il.com, pgynther@...gle.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] net: bcmgenet: fix throughtput regression

From: Jaedon Shin <jaedon.shin@...il.com>
Date: Sat, 28 Feb 2015 11:48:26 +0900

> This patch adds bcmgenet_tx_poll for the tx_rings. This can reduce the
> interrupt load and send xmit in network stack on time. This also
> separated for the completion of tx_ring16 from bcmgenet_poll.
> 
> The bcmgenet_tx_reclaim of tx_ring[{0,1,2,3}] operative by an interrupt
> is to be not more than a certain number TxBDs. It is caused by too
> slowly reclaiming the transmitted skb. Therefore, performance
> degradation of xmit after 605ad7f ("tcp: refine TSO autosizing").
> 
> Signed-off-by: Jaedon Shin <jaedon.shin@...il.com>
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>

Applied.
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