I take NO responsibility for ANYTHING that goes wrong with your phone, life, job, home, car, sex life, dog, cat, turtle, pet rock, etc. as a direct or indirect result of your use of this kernel.
Features of kernel for Sense ROMs:
Based on HTC source code - this should work on any stock-ish ROM
Features of kernel for CM7 ROMs:
Based on Toast's fork of the Cyanogenmod kernel
Common features:
BFQ I/O scheduler
Smartass governor
Undervolted (battery savings)
Overclocked - up to 1.8GHz (WHY?!? lol)
Underclocked - down to 184Mhz (battery savings)
By default, the kernel will clock up to 1.2GHz with the smartass governor. I personally just flash the kernel and run it as-is. If you want something different, use an overclock utility like "No-frills CPU Control". Be aware that some of these utilities run background processes and SUCK battery life.
Troubleshooting:
ON CM7.0.2
You will need to flash the kernel *AFTER* booting up the ROM for the first time. If you do a clean install of CM7.0.2 + the x99kernel, turning on wifi may make your phone go into a "boot loop" (restarting the shell, over and over).
If you're stuck in a boot loop, go into recovery (yank battery then vol down + power OR "adb reboot recovery"), flash the 7.0.2 file again, let it boot, make sure Wifi works, then go back into recovery and flash the x99kernel.
If anyone has further input on this, I'm all ears.
My phone is locking up!
Try a slower clock speed and/or a different governor. I have run this kernel reliably at 1.55GHz for a long time, but different phones can have different results. I have personally experienced lock-ups at high speeds with the interactive governor. Again, I have been running this kernel "as-is" without making any clock/governor changes... IMO, 1.2GHz is plenty fast for day-to-day use.
My phone is running hot and/or the battery is draining quickly!
Most likely, you're running the CPU at a HIGH speed and/or there are some over-active processes.
I suggest downloading OSMonitor from the market to see what processes are active. In the options, you can choose to sort the process list by CPU Load and also check the "Order" box to have the active processes shown at the top of the list. The "Misc" tab will show the current clock speed and phone temperature... you can also use it to change the speed or governor if you'd like.
"adb logcat" can reveal a LOT about what your phone is doing in the background.
Credit:
bcnice20 - I followed a lot of what he was doing with his own kernel, but removed bits that didn't seem to work right for me.
toast - CM7 kernel is forked from his github
cloverdale - Proper root in Sense kernel
Old, out-of-date changelog:
20110414
Step up to 2.6.32.36 from 2.6.32.33 in CM7 kernel
20110411
camera fix for bcnice20's Desire ROM in Sense kernel
20110408
Proper root in sense kernel
20110404
Added BFQ I/O scheduler
Misc compiler tweaks
Added version for CM7
20110323
Lowered voltage on 184MHz and 245MHz speeds
20110322
Re-tweaked the smartass governor (see current strategy below)
Slightly increased voltages for CPU speeds between 768MHz and 1.55GHz (may help some people with lock-ups)
Added an additional low speed... 184Mhz (power savings?)
20110321
Tweaked the smartass governor
Added the interactive governor
20110318
Added two additional clock speeds between 768MHz and 368MHz. By default, the smartass governor can't make the "jump" down from 768MHz to 368MHz, because the step is too large.
Added conservative governor (untested, but should be OK).
Current smartass strategy:
Max sleep speed is 245MHz
CPU load under 35% = step down. Can step down as much as is determined to be OK at once.
CPU load over 70% = step up. Will make steps upward of as much as 384MHz at a time.
If CPU is at 100%, jump up to at least 1.1GHz.
Current versions:
Download x99kernel-GBSense-20111030 #1 FOR GINGERBREAD SENSE ROMs, NOT FROYO. No smartass governor yet. Uses improved flashing script.
md5sum: 1973b881d09796f16c2ab7a485c1b6df
Download x99kernel-cm7-20111003 #5(?) This is a 2.6.35 kernel! Slightly incomplete... no underclocking yet. Improved flashing script to avoid missing module files (fix WiFi errors). Max smartass sleep speed is 368Mhz.`
md5sum: a215897e48f26a1d03510f5e632f59bb
Download x99kernel-cm7-20110530 Still #2 This is a 2.6.32 kernel! For CM 7.0.3.1, CM7 nightly #87, or earlier.
md5sum: 9569a39d5746756b9f6a3a5bfcc63a9b
Can you people *please* stop posting irrelevant comments that contribute nothing to the topic? That's how we get threads with a zillion posts that no one wants to read through, and then people get all offended when someone asks a question that was already answered "8 pages back"...
Nice job on the kernel. Been running it for bout two hours clocked to 1.8ghz on performance in setcpu. Temp hasn't reached over 80. Hitting steadu 2400 in quadrant.
Sent from my fast as **** Evo Shift 4G using Tapatalk
I take NO responsibility for ANYTHING that goes wrong with your phone, life, job, home, car, sex life, dog, cat, turtle, pet rock, etc. as a direct or indirect result of your use of this kernel.
My sex life instantly was overclocked!
Sent from HTC Knight using Mikrom..because CM7 got overrated like CWM
So 4g, gps, and all those other bugs are worked out on this kernel? And can i apply this over nfx stock rom?
There *shouldn't* be any issues with 4G or GPS, since this is based on the original HTC source code. I have used it successfully over NFX's ROMs before... I think I'm running one of his now.
I have edited the orignal post to be a little more clear.
Can you people *please* stop posting irrelevant comments that contribute nothing to the topic? That's how we get threads with a zillion posts that no one wants to read through, and then people get all offended when someone asks a question that was already answered "8 pages back"...
so this kernel seems to have solved my issue with loading pages in the browser locking up the phone. Nice.
Is there anyway you can add the wired tether patch so I can just use that? I'm not to keen on switching roms and having to start over.
When writing an app with performance in mind, you most likely want to write it native code using the … more
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[KERNEL] 2011-10-30 - x99kernel OC/UC/UV 1.2/1.8GHz smartass - Sense & CM7/AOSP
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[KERNEL] 2011-10-30 - x99kernel OC/UC/UV 1.2/1.8GHz smartass - Sense & CM7/AOSP
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