[EVO 4G Android Development] mikeyxda:
Thanks for that. Tried it out with 1.2v and for the first time I got a random graphic background sticking behind one of my widgets. It eventually went away after the OS settled down (after it booted completely) but that kinda turned me off in this kernel. Tiamat also seems a little less efficient as far as computing cycles as I get about 10% less score on Quadrant with Tiamat than the others. In general, these are my observations of the kernels I've tried:

(1) The CM7 kernel that installs with Deck's ROM: I like this one the best. Judging by battery life and juice used in the log (via battery monitor), this one is giving me the best balance between performance and battery. No issues.

(2) Godmode v8. Godmode v8 gave me some issues, particularly a delay after waking and a few spontaneous reboots. Due to the spontaneous reboots, I haven't tried v9. Battery life for me on godmode v8 wasn't that great either which is a bit contrary to what others have found. Quadrant benchmarks are a little lower than (1) above too with the same SetCPU settings so I don't think it's quite as efficient performance-wise.

(3) Tiamat. Tried 4.0.4 and 4.0.5. Again with the same SetCPU settings, I get significantly lower scores even if I put both the min/max on my standard 1.113Ghz setting. Tiamat suffers about a 10% performance loss compared to the other kernels for me. Yes, Tiamat lets you turn the clock up higher but you have to in order to keep up with the other kernels! And beyond 1.2Ghz, Tiamat is unstable and you may lose the ability to even boot the device without some clever fingerwork or a restore. I also hate how Tiamat removes the standard "On Demand" model from SetCPU. That's the one I like to use and all my profiles are "On Demand" yet Tiamat wants to set the main model to "SmartAss" because there is no "On Demand"... yet it doesn't update the profiles so I always have to fiddle with all of them when I try Tiamat. For these reasons, I'll probably stay away from Tiamat from now on. Battery life was OK with Tiamat but Decks as-installed kernel is actually a little better on the battery.

(4) Savaged Zen: I like this one. It has been my other main kernel. My only complaint about SZ is that it destroys SD card write speed and takes it down to about 6x slower than the other kernels. This is a known issue and not a big one admittedly, but it does make copying stuff to the SD card a bit of a pain. Other than that, it is VERY efficient with power and performance giving me some of the best battery life and also the highest Quadrant scores. To compare, my Quadrant scores with SZ are about 10% higher than Tiamat at the same clock speed. I have to crank the clock almost all the way up in Tiamat (1.2 versus 1.113) to equal SZ's Quadrant scores and then at 1.2, you risk problems.

Anyway, that's the score from my side of the fence as of this date. I do try to keep in mind that due to the customizable nature of these kernels, everyone may get drastically different results based on how you have certain features set. So the above is just to throw out a datapoint: my observation with pretty much the "as installed" settings. I'm sure there are tips/tricks for each kernel that will change the above picture drastically but I don't really have the time to try all possibilities.

Mike