[Sprint Samsung Galaxy Note 3] ch3vr0n5:
For those inquiring about disabling Samsung's DVFS implementation, I have this to say:

Samsung's implementation of DVFS has it's flaws but Dynamic Voltage and Frequency Scaling is not their creation and has been used for many years in both consumer and non-consumer products (yes in your desktop). DVFS in general causes a slight loss in performance (usually not noticeable) for a much greater boost in power savings. It is fantastic that this is being used in mobile platforms considering the poor state of battery technology. Samsung's implementation causes some more noticeable performance drops in certain situations but over all gives you better battery life. In general you may have a 4% loss in performance but gain 30% in power savings. (Snowdon et al. [2009])

I will say this, Wanam's "Disable DVFS" does not work... at least not on this ROM or with freeza's modified kernel that I have seen. I have tested this multiple times and each time you can still see DVFS taking place as it should using PerfMon (anyone familiar with Windows Performance Counters will love this: http://xdaforums.com/showthread.php?t=1933284) It may be necessary to disable DVFS for certain apps that do not play well with it but it is not something I would disable indefinitely. In fact if something doesn't play well with it I am more inclined to delete the rubbish app.

You can further increase the effectiveness of DVFS while not incurring any noticeable drop in performance by using Multicore Power Saving available in our kernel settings. (Use something like Trickster MOD to change this.) By default this is disabled (0) but you can either enable it (1) or make it more aggressive (2). I personally use the most aggressive (2). This bundles as many processes as possible to be run on as few cores as possible so you are not running all 4 cores unnecessarily and drawing more power. As DVFS is per-core it further helps keep power consumption down. I have reached 1day 21hrs on battery with 20% still to spare which included using GPS navigation, SMS messaging, WIFI/cellular calls, some Final Fantasy III, Chrome, XDA Premium and more. I heavily rely on my phone as an alarm clock and would completely trust it at 15% to wake me up 8 hours later without charging and only a 1% loss. Dat Deep Sleep =)

It is important to find which apps are using the most power when the screen is off. I highly recommend BetterBatteryStats in combination with apps like Greenify and Qualcomm's BatteryGuru to tailor which apps can run in the background constantly as well as when they can update.

DVFS is your friend. I know we are all used to the older method of managing our CPU scaling (set a min, set a max and let the scheduler/governor do the rest) but this is becoming an outdated way of controlling our performance and power consumption. Battery technology at its core is pretty much the same as it was decades ago (I saw the last promising lead on this years ago: http://gigaom.com/2011/11/16/future-gadget-batteries-could-last-10-times-longer/) but our power needs continue to grow. Because of this our chips are becoming as efficient as possible and now we need to change the way we use them to continue to get more power savings. We started off with CPU's that ran 100% all the time. Then we created chips with Idle speeds and then gave them the ability to scale and created governors to manage them. Now we have DVFS to further increase our effective use of them so our batteries can continue to carry us further on the same old charge.

TL;DR: DVFS is good. Practice good app management (BetterBatteryStats, Greenify, Qualcomm's BatteryGuru). Stay Frosty.

Cheers

Source:

David C. Snowdon, Etienne Le Sueur, Stefan M. Petters and Gernot Heiser. Koala: A platform for OS-level power management. Proceedings of the 4th EuroSys Conference, Nuremberg, Germany, April, 2009 (PDF)