maemo.org - Talk - View Single Post - [PATCH] Dynamic CPU Scaling + [720p UPDATE] Effective Power Saving When Device Is Active/Idle -720p Update-

	ammyt	2011-09-05 , 15:31
	Posts: 1,918 \| Thanked: 3,118 times \| Joined on Oct 2010 @ My pants	#51

Originally Posted by Estel

I'm "little" skeptical about effectiveness of this (it affect handling caching filesystem vs. application data in RAM, and RAM use same ammount of power, no matter if You got 200 used or 200 free...), at least, unless someone may provide hard proof via - for example - 'bq27200.sh 5' current monitoring of ~30 minutes in idle, in same N900 with only this setting changed. AFAIK, no one proved real benefit here, so I may be wrong.

Still, thanks for Your work, monitoring dbus signals may be useful in other cases

It's totally okay, I'm loving the conversation

Well let's say the CPU Freq/voltage script provided a change which is though of as a placebo, the vfs_cache_pressure mod was also not effective and enhanced the placebo effect, the SIGSTOP mod should do the battery saving then.

I mean, you've got there three factors which are supposed to save battery life and/or enhance performance, at least one of them should have an effect, right? Or, you will have a 3x Ultra Super Placebo Deluxe which isn't bad at all

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