netdev - Re: [PATCH] [net,v3] net: wwan: t7xx: add PM_AUTOSUSPEND_MS_BY

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Message-ID: <85cda68e-93d9-4f69-a59e-6c7c292f3a25@lunn.ch>
Date: Tue, 15 Oct 2024 17:56:23 +0200
From: Andrew Lunn <andrew@...n.ch>
To: wojackbb@...il.com
Cc: netdev@...r.kernel.org, chandrashekar.devegowda@...el.com,
	chiranjeevi.rapolu@...ux.intel.com, haijun.liu@...iatek.com,
	m.chetan.kumar@...ux.intel.com, ricardo.martinez@...ux.intel.com,
	loic.poulain@...aro.org, ryazanov.s.a@...il.com,
	johannes@...solutions.net, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com,
	linux-arm-kernel@...ts.infradead.org,
	angelogioacchino.delregno@...labora.com,
	linux-mediatek@...ts.infradead.org, matthias.bgg@...il.com
Subject: Re: [PATCH] [net,v3] net: wwan: t7xx: add
 PM_AUTOSUSPEND_MS_BY_DW5933E for Dell DW5933e

On Tue, Oct 15, 2024 at 11:28:20AM +0800, wojackbb@...il.com wrote:
> From: Jack Wu <wojackbb@...il.com>
> 
> Because optimizing the power consumption of Dell DW5933e,
> Add a new auto suspend time for Dell DW5933e.
> 
> The Tests uses a small script to loop through the power_state
> of Dell DW5933e.
> (for example: /sys/bus/pci/devices/0000\:72\:00.0/power_state)
> 
> * If Auto suspend is 20 seconds,
>   test script show power_state have 5% of the time was in D3 state
>   when host don't have data packet transmission.
> 
> * Changed auto suspend time to 5 seconds,
>   test script show power_state have 50% of the time was in D3 state
>   when host don't have data packet transmission.

There are still open questions on V2:

https://patchwork.kernel.org/project/netdevbpf/patch/20240930031624.2116592-1-wojackbb@gmail.com/

    Andrew

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