[KERNEL] [2.6.32.24] [HAVS] [BFS] [BFQ] KiNgxKernel #11/#11 "Con is an Artist"

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I DO NOT have an HTC Evo, but would LOVE to have one for development, and am saving for one. Bear with me until then I just wanted to say thank you to the few who have donated. I am almost there, any help is appreciated!!! I plan to have my HTC Evo fairly soon

DO NOT FORGET TO READ THE ENTIRE POST ON MY SITE, THERE IS IMPORTANT INFO

So, just as the name implies, this is an Evo kernel with SVS (Static Voltage Scaling) & HAVS (Hybrid Adaptive Voltage Scaling.) A huge thanks to estes for the havs code and raven for being the first to implement it into the nexus kernel. What this does is provide SUPERIOR BATTERY life with stability to boot. Just flash the .zip in your favorite recovery image. Enjoy and post any bugs with a logcat please.

This is compatible with any 2.2 Sense ROM

Also, a little info on HAVS and AVS:

The purpose of HAVS is to minimize the power used by the CPU by determining
and setting the optimal voltage. At the same time, the maximum voltage by
which HAVS can scale to is fixed to a specified voltage depending on the
CPU frequency in order to prevent scaling to a higher voltage than what is
normally used at a specified voltage. The optimal voltage is actively determined
for each frequency and temperature. HAVS actively adjusts the CPU voltage as the
CPU frequency and temperature changes.

While we are at it, some info on BFS:

What is BFS(Brain **** Scheduler):http://ck.kolivas.org/patches/bfs/sched-BFS.txt
FAQS about BFS:http://ck.kolivas.org/patches/bfs/bfs-faq.txt

Originally Posted by nugzo

I have full adb. I didnt have it when i upgraded from previous king kernels. Had to do a full wipe. Reinstalled rom and installed kernel before rebooting. adb works perfect. full access.

ENJOY!

Credits: Cyanogen, Netarchy (epson fps panel fix), toastcfh, ffolkes - all for bits of their code (see changelog), Koush for his any kernel .zip, AssasinsLaminent (nova fix), and most importantly, HTC for their kernel source


Download: CFS Kernel #11 & BFS Kernel #11[/URL] Date: 10/28/10 9:40 PM PST


If you Like my work follow me on twitter:


All my code is on github:



I am not responsible for anything that happens to your device

ChEeRs

BFS Changelog

Kernel #11

- HAVS is now OUT. We are not currently using it
- Using SVS for voltage regulation at the moment
- Battery life should be great now
- I forgot about an awful lot of longs and ints that will overflow on 32 bit now with u64 deadlines. Fix them.
- Add some macro tidiness
- Make sched_clock sanity checking robust and standardised, using jiffy
difference as upper limit, and use nominal 1us when difference cannot be
trusted.
- In layman's terms these are all MAJOR fixes to his BFS scheduler
- These fixes will provide a performance and stability boost
- Higher clockspeeds are more stable!
- More I will add


Kernel #10

- Performance boost!
- More stable due to BFS overhaul
- Patched up BFS scheduler to BFS 330
- Patched in *NEW* BFS TEST patch that applies over 330 (from CKolivas himself)
* Major overhaul of queued changes
* Micooptimise multiplications/divisions to be shifts where suitable
* Drop the "skip_clock_update" concept as we update the niffies each time we
update the rq clocks, thus we want to update it more often
* Add a local last_task variable to each runqueue which keeps a copy of the
last non-idle task that ran on this CPU. Use this value to determine that a
task is still cache warm on this CPU even if it has run elsewhere in the
meantime. This improves throughput on relatively idle systems with >2 logical
CPUs
* Change SCHED_BATCH tasks to refill timeslices and reset deadline every time
they're descheduled as they've been flagged as latency insensitive, likely
fully CPU bound tasks. This should decrease the impact running batch tasks
has on other tasks
* Bypass rechecking deadline when we know that prev will run again in schedule
* Change all deadline accounting to use nanosecond values
* Rework try_preempt
* MUCH MUCH more check my patch code if you please
- Voltage tweaks for stability
- Compiled with toolchain optimizations
- Neon optimizations this time around

Kernel #9

- Finally released
- Board files fixed to allow lower undervolt
- Undervolted to 825Mhz for safe frequencies
- Higher clockspeeds WILL be more stable now
- Compiled CIFS module per request
- Regulator tweaks
- Removed some bloat
- Now using ondemand governor by default, feel free to change it
- Battery charging tweaks (like my inc kernel)
- You guys are going to like this one

Kernel #8

- Reverted BFS Scheduler to 318
- Reverted GPU changes causing stutters
- Other minor fixes

Kernel #7

- Updated BFS Scheduler all the way up to 330
- MANY fixes to HAVS code *thanks for some of them netarchy*
- Regulator being properly used now
- Usleep fixes for sleep mode *via nnode*
- Longer battery life as a result of these major changes
- Volume boost tweaks
- Torture test disabled
- Torture test support disabled
- More I will add

Kernel #6

- Minor code cleanup
- Now undervolted to 825Mv! *Longer batter life*
- Ksgl tweaks for performance
- Higher clock speeds should now be more stable
- Wifi module tweaks
- Other things I will add

Kernel #5

- Rpc changes/tweaks
- V4L2 code disabled now for media interface
- Vmalloced tweaks via @cyanogen *PERFORMANCE BOOST*
- Tweaks for stability
- More I will add

Kernel #4

- BIG update
- Code cleanup
- Undervolted even more (Battery life is LONG)
- Compiled with neon optimizations
- Conservative governor threshold tweaked (via netarchy)
- Conservative Governor sampling rate tweaked per user request
- GPU edits for performance
- 5MB of memory reserved for the Adreno GPU
- Kernel will boot faster as a result of "set read ahead" changes
- Various wifi module tweaks
- Packet Filtering set to turn off after 1s
- Bluetooth sleep bug fixed *via kmobs via kernelzilla*
- More I will add

Kernel #3

- Added BFQ I/O Scheduler
- Default scheduler is bfq
- Fixed atomic functions in bfq *thanks cyanogen and co*
- Cleaned up/removed unneeded code
- HAVS is still included and functioning

Kernel #2

- Updated BFS Scheduler all the way up to 318
- Manual patches made by me to successfully get it working 100%
- Minor bug fixes
- Things I'll add

Kernel #1

- Fresh sources
- FAST
- Based off of CFS Kernel #7
- Applied BFS 313 (Brain **** Scheduler by Con Kolivas)
- HAVS implemented
- Minor bug fixes

CFS Changelog

Kernel #11

- Kernel now patched up to 2.6.32.24
- Bug fix causing battery drain
- Reverted some UV levels causing instability
- CFS updates
* Implement different treatment for idle shares
* Fix CFS 'Over-scheduling' bug
* sched: Fix granularity of task_u/stime()
* sched, cputime: Introduce thread_group_times()
* sched: Fix select_idle_sibling()
* sched: cpuacct: Use bigger percpu counter batch values for stats counters
* sched: fix racy fair sched*trq
* sched: Cleanup select_task_rq_fair()
- EXT4 support now!
- EXT4 compiled as a module
- EXT4 filesystem bug fixes
* ext4: Fix potential quota deadlock
* ext4: Fix BUG_ON at fs/buffer.c:652 in no journal mode
* ext4: fix memory leaks in error path handling of ext4_ext_zeroout()
* ext4: Prevent creation of files larger than RLIMIT_FSIZE using fallocate
* ext4: Ensure zeroout blocks have no dirty metadata
* ext4: Consolidate inlign pages
- CIFS bug fixes for stability and security
* cifs: Fix a malicious redirect problem in the DNS lookup code
* cifs: don't attempt busy-file rename unless it's in same directory
* cifs: remove bogus first_time check in NTLMv2 session setup code
- Netfilter IPv6 bug fixes
- Memory leak fixed in firmware
- CPU Governor fixes
- Mutex bug fix
* mutex: Don't spin when the owner CPU is offline or other weird cases
- Using xen_clocksource_read now for scheduler (part of 2.6.32.18 patchset)
- vmscan: raise the bar to PAGEOUT_IO_SYNC stalls
- SLAB fixes
- drm: Only decouple the old_fb from the crtc is we call mode_set*
- arm fixes: arm: fix really nasty sigreturn bug
- RDS memory leak fixed
- mm: page allocator: update free page counters after pages are placed on the free list
- mm: page allocator: calculate a better estimate of NR_FREE_PAGES when memory is low and kswapd is awake
- So much more, check my code if you please

Kernel #10

- Patched up to Linux Kernel version 2.6.32.17 (all commits an android kernel would need, no extra bloat) *All credit goes to the linux project, check my github for authors please*
- CFS updates
* Implement different treatment for idle shares
* Fix CFS 'Over-scheduling' bug
- EXT4 support now!
- EXT4 compiled as a module
- EXT4 filesystem bug fixes
* ext4: Fix potential quota deadlock
* ext4: Fix BUG_ON at fs/buffer.c:652 in no journal mode
* ext4: fix memory leaks in error path handling of ext4_ext_zeroout()
* ext4: Prevent creation of files larger than RLIMIT_FSIZE using fallocate
* ext4: Ensure zeroout blocks have no dirty metadata
- CIFS bug fixes for stability and security
* cifs: Fix a malicious redirect problem in the DNS lookup code
* cifs: don't attempt busy-file rename unless it's in same directory
* cifs: remove bogus first_time check in NTLMv2 session setup code
- Netfilter IPv6 bug fixes
- Memory leak fixed in firmware
- CPU Governor fixes
- Mutex bug fix
- Using xen_clocksource_read now for scheduler (part of 2.6.32.18 patchset)
- Much more I will add

Kernel #9

- Board files fixed to allow lower undervolt
- Undervolted to 825Mhz for safe frequencies
- Higher clockspeeds WILL be more stable now
- Compiled CIFS module per request
- Regulator tweaks
- Removed some bloat
- Now using ondemand governor by default, feel free to change it
- Battery charging tweaks (like my inc kernel)
- MANY fixes to HAVS code *thanks for some of them netarchy*
- Regulator being properly used now
- Usleep fixes for sleep mode *via nnode*
- Longer battery life as a result of these major changes
- Volume boost tweaks
- Torture test disabled
- Torture test support disabled
- Ksgl tweaks for performance
- Higher clock speeds should now be more stable
- Wifi module tweaks
- More I will add

Kernel #8

- Added BFQ I/O Scheduler
- Default scheduler is bfq
- Fixed atomic functions in bfq *thanks cyanogen and co*
- Cleaned up/removed unneeded code
- HAVS is still included and functioning
- Code cleanup
- Undervolted even more (Battery life is LONG)
- Compiled with neon optimizations
- Conservative governor threshold tweaked (via netarchy)
- Conservative Governor sampling rate tweaked per user request
- GPU edits for performance
- 5MB of memory reserved for the Adreno GPU
- Kernel will boot faster as a result of "set read ahead" changes
- Various wifi module tweaks
- Packet Filtering set to turn off after 1s
- Bluetooth sleep bug fixed *via kmobs via kernelzilla*
- Rpc changes/tweaks
- V4L2 code disabled now for media interface
- Vmalloced tweaks via @cyanogen *PERFORMANCE BOOST*
- Tweaks for stability
- Now undervolted to 825Mv! *Longer batter life*
- Ksgl tweaks for performance
- Higher clock speeds should now be more stable
- Wifi module tweaks
- More I will add

Kernel #7

- Added new CPU Governor - 'Interactive Governor' thanks Mike Chan @google
- Still using Conservative Governor
- Now overclockable to speeds up to 1.26Ghz (Not all phones can run 1.26, if your phone locks up, OC lower)
- Bluetooth tweaks (double check that bluetooth works for me please)
- Even more undervolted
- Wireless 'n' support
- Switched to 'cfq' scheduler
- Open VPN Modules
- Other things I will add

Kernel #6

- Overclocking should be 100% functioning
- SetCPU works now
- Overclockable up to 1.113 (Will raise this number soon )
- Added CPU Governor "OnDemand"
- Added CPU Governor "UserSpace"
- Added CPU Governor "Performance"
- Added CPU Governor "Conservative"
- Default CPU governor changed to "Conservative"

Kernel #5

- Five point multitouch (thanks for the code ffolkes)
- ADB working for most.... (wierd)
- Speed tweaks
- CPU Governors updated
- CPU tables updated
- Code is live

Kernel #4

- Much faster
- Much smaller kernel, removed all bloat
- ADB should work now, let me know
- Overclocking should work, let me know
- Switched scheduler to deadline
- More audio tweaks (per request, I forget who asked)
- Included a slew of modules, should cover any module you'd need
- More I will add

Kernel #3

- OC capability should work via terminal
- Netfilter (Wifi tether) built into the kernel
- Added OnDemand CPU governor
- Added UserSpace CPU governor
- Added Conservative CPU governor
- Default governor is currently OnDemand

Kernel #2

- Speed boost
- Five point multi touch support (believe this was ffolkes, thank you)
- FPS unlocked now! (thanks toast)
- Audio Boost Tweaks (LOUD)
- Integrated code to use 3 point for sensors that do not support 5 (thank you ffolkes)
- Kernel should work on CM6 now (let me know)
- Kernel should now detect screen arch on boot (thanks cyanogen)
- Should support both epson and n
- OC Capable now - up to 1.26 Ghz!
- Voltages lowered significantly for even better battery life
- Changed default scheduler to cfq
- Cleaned up unneeded code
- More I will add

Kernel #1

- First kernel for the HTC Evo
- Based off of the HTC source code - 2.6.32.12
- Added drivers for Static Voltage Scaling (SVS)
- Added drivers for Hybrid Adaptive Voltage Scaling (HAVS)
- Using CFS
- No OC capabilities as of now
- Cameras should work fine
- WiFI should work fine
- Bluetooth should work fine
- All things you would expect to work should be working, let me know

Any chance we could see some of the Desire's audio values in this kernel?

Originally Posted by neckface

Any chance we could see some of the Desire's audio values in this kernel?

if I can find the code for it, yes.

You evo users have no idea what HAVS is like

I can't wait to see the feedback

Originally Posted by kingklick

You evo users have no idea what HAVS is like

Well, for me, I have no idea what it is at all lol
Mind explaining what it does plz? =P

Originally Posted by kingklick

if I can find the code for it, yes.

You evo users have no idea what HAVS is like

I can't wait to see the feedback

If you don't find it before I get home, I'll pm the directory to you.

And yeah, I haven't a clue what that is. Lol

This is interesting... any more details?

- Sent via my EVO 2.2 (Fresh 3.1.0.1) from the back seat of your Momma's car.

What on Earth is HAVS?

after a little googling...

Hybrid Adaptive Voltage Scaling (HAVS)

Originally Posted by david279

after a little googling...

Hybrid Adaptive Voltage Scaling (HAVS)

MMhhh can't wait to try this one out