netdev - Network stack timer hacks for power saving

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Message-ID: <1F18D6510CF0474A8C9500565A7E41A20544D923FF@NOK-EUMSG-02.mgdnok.nokia.com>
Date:	Tue, 19 May 2009 10:13:02 +0200
From:	<Tero.Kristo@...ia.com>
To:	<netdev@...r.kernel.org>
Subject: Network stack timer hacks for power saving

Hi,

I have been looking at network stack timer optimization for 
power saving in embedded ARM environment, basically trying to 
avoid as many wakeups as possible. I have changed several 
timers in the network stack into deferred ones, i.e. they do 
not wake up the device from low power modes but instead they 
are deferred until next wakeup from some other source, like 
another (non-deferred) timer or some I/O. Attached a patch 
about the changes I've done, is something like this safe to do?

-Tero
Download attachment "0001-Network-stack-timer-optimizations-for-power-saving.patch" of type "application/octet-stream" (2685 bytes)