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Date: Tue, 3 Apr 2018 19:37:47 -0700 From: João Paulo Rechi Vita <jprvita@...il.com> To: Larry Finger <Larry.Finger@...inger.net> Cc: Yan-Hsuan Chuang <yhchuang@...ltek.com>, Ping-Ke Shih <pkshih@...ltek.com>, Birming Chiu <birming@...ltek.com>, Shaofu <shaofu@...ltek.com>, Steven Ting <steventing@...ltek.com>, Chaoming Li <chaoming_li@...lsil.com.cn>, Kalle Valo <kvalo@...eaurora.org>, linux-wireless <linux-wireless@...r.kernel.org>, Network Development <netdev@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Daniel Drake <drake@...lessm.com>, João Paulo Rechi Vita <jprvita@...lessm.com>, linux@...lessm.com Subject: Re: RTL8723BE performance regression On Tue, Apr 3, 2018 at 7:28 PM, Larry Finger <Larry.Finger@...inger.net> wrote: (...) > As the antenna selection code changes affected your first bisection, do you > have one of those HP laptops with only one antenna and the incorrect coding > in the FUSE? Yes, that is why I've been passing ant_sel=1 during my tests -- this was needed to achieve a good performance in the past, before this regression. I've also opened the laptop chassis and confirmed the antenna cable is plugged to the connector labeled with "1" on the card. > If so, please make sure that you still have the same signal > strength for good and bad cases. I have tried to keep the driver and the > btcoex code in sync, but there may be some combinations of antenna > configuration and FUSE contents that cause the code to fail. > What is the recommended way to monitor the signal strength? Thanks for such a quick reply, -- João Paulo Rechi Vita http://about.me/jprvita
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