Related
I've been using setcpu for a while now, but have never bothered to mess with the advanced settings. Searching around I have only found out what most of this stuff means, but I'm missing some still. I thought I would share my findings. I have included SetCPU's descriptions (in italics) supplemented with my findings.
Governor choices (I'm using king's bfs kernel #1 on fresh 3.1.0.2) -
Ondemand - Uses the highest frequency when tasks are started, decreases step by step
Conservative - Increases frequency step by step, decreases instantly
Interactive - I couldn't figure this one out... any help?
Powersave - Uses the lowest possible clock speed to complete its tasks
Userspace - Manual controll of the frequency
Performance - Always uses the highest clock speed
Advanced Settings -
Sampling Rate - An interval (in microseconds) at which the governor will poll for updates. When this happens, the governor will decide whether to scale the CPU up or down. It uses such little power that it is better at lower values when using profiles such as screen off.
Up Threshold (1%-100%) - Defines a percentage from 1% to 100%. When the CPU load reaches this point, the governor will scale the CPU up. When using low min values (245), this happens instantly, using higher values (768) it overclocks less often. With Conservative lower values are better because it slowly increases your clock speed to what you need, with Ondemand, higher is better, as it overclocks less often.
Down Threshold (1%-100%) (conservative only) - Defines a percentage from 1% to 100%. When the CPU load reaches this point, the governor will scale the CPU down. Higher values will offer more aggressive battery saving, lowering the clock speed quicker.
Ignore Nice Load (0/1) - If this value is "1," the system will ignore "Nice" processes when deciding to scale up or down. I need a little more info for this one, what exactly is a nice process? DO NOT GOOGLE 'NICE LOAD' ESPECIALLY AT WORK OR AROUND CHILDREN/WIFE
Freq Step (0%-100%) (conservative only) - Defines how much (as a percentage of the maximum CPU speed) the conservative governor will increase the CPU speed by each time the CPU load reaches the Up Threshold. Increased the value slightly to be able to overclock quicker, but not to high to avoid unnecessary overclocking.
Powersave Bias (0-1000) (ondemand only) - Setting this value higher will "bias" the governor toward lower frequencies. This is a percentage, where 1000 is 100%, 100 is 10%, and 0 is 0%. The ondemand governor will scale the CPU to a frequency lower than its "target" speed according to this value. Gives ondemand some more battery saving potential. High values give worse performance than conservative with equal or worse battery saving. If you want the performance of ondemand with some more battery use values under 200.
I hope this info was helpful to someone, and here are my setcpu settings. I have attempted to target 150-175ms for short and 350-400ms for long benchmarks to match my performance governor and save battery at the same time.
With ondemand I get about 170ms short and 380ms long. I use 90 for up and 50 for powersave. The performance is slightly better than the default settings, and the battery is about equal. I might play with this more, as it should hit the same values as performance with better battery life.
In conservative long benchmarks in setcpu are actually faster than short ones because it takes setcpu time to adjust the speed. Run a short one immediately after a long one to see its actual value. Up changed 75 and down to 25, not much of a change, but drastic performance increase with no battery change. I also increased freq step to 10% to obtain higher speeds faster. Getting the same 170ms short and 370ms long.
My Settings
Conservative 245-1190
Temp > 50C - 768 conservative
Screen Off - 499 ondemand (allows for the screen to be unlocked faster, especially useful with incoming calls)
Charging/Full - 1190 performance
Battery < 15% - 652 conservative
Sampling - 200000
Up Thresh - 75
Down Thresh -25
Ignore Nice - 0
Freq - 10
More DFS Info
SetCPU Info
davebu said:
DO NOT GOOGLE 'NICE LOAD' ESPECIALLY AT WORK OR AROUND CHILDREN/WIFE
Click to expand...
Click to collapse
LMAO 10chars
HondaCop said:
LMAO 10chars
Click to expand...
Click to collapse
Yeah. I almost spit out my Vanilla Coke on that one. LOL
Anytime have any info about nice load or anything to add?
Sent from my HTC EVO 4G.
HondaCop said:
LMAO 10chars
Click to expand...
Click to collapse
I missed this yesterday... Post of the day in my opinion
Thanks dave...good write up
This is what I found about the interactive governor in github:
cpufreq: interactive: New 'interactive' governor
New interactive governor.
This governor is designed for latency sensitive workloads, UI interaction for
example.
Advantages:
+ significantly more responsive to ramp cpu up when required (UI interaction)
+ more consistent ramping, existing governors do their cpu load sampling in a
workqueue context, the 'interactive' governor does this in a timer context, which
gives more consistent cpu load sampling.
+ higher priority for cpu frequency increase, rt_workqueue is used for scaling
up, giving the remaining tasks the cpu performance benefit, unlike existing
governors which schedule rampup work to occur after your performance starved
tasks have completed.
Existing governors sample cpu load at a particular rate, typically
every X ms. Which can lead to under powering UI threads when the user has
interacted with an idle system until the next sample period happns.
The 'interactive' governor has a different approach. Instead of sampling the cpu
at a specified rate, the governor will scale the cpu frequency up when coming
out of idle. When the cpu comes out of idle, a timer is configured to fire
within 1-2 ticks. If the cpu is 100% busy from exiting idle to when the timer
fires then we assume the cpu is underpowered and ramp to MAX speed.
If the cpu was not 100% busy, then the governor evaluates the cpu load over the
last 'min_sample_rate' (default 50000 uS) to determine the cpu speed to ramp down
to.
There is only one tuneable for this governor:
/sys/devices/system/cpu/cpufreq/interactive/min_sample_rate:
The minimum ammount of time to spend at the current frequency before
ramping down. This is to ensure that the governor has seen enough
historic cpu load data to determine the appropriate workload.
Default is 5000 uS.
Also, in the original application thread as explained by the dev, "nice" processes are:
2. Nice processes are used by the IO scheduler to designate a low-priority process. Ignore nice load basically tells ondemand to disregard processes with higher nice values.
Good topic. You covered the bases pretty well. Glad someone finally put this together as it is useful to know. Now prepare for 1000 threads in the next month asking for the information you just posted.
hey question. i went and purchased SetCPU and attempted to follow your instruction. problem is, whenever SetCPU tries to gain super user permission, it says "no root access granted. Are applications allowed root access?" i dunno what to do. can someone advise me?
Umm, is your phone rooted?
Sent from the void...
Yessir. Since day 2 ^_^ (plus its in my sig)
Sent from my Evo using Tapatalk
SilverStone641 said:
Yessir. Since day 2 ^_^ (plus its in my sig)
Sent from my Evo using Tapatalk
Click to expand...
Click to collapse
Try uninstalling and reinstalling it.
Then double check all of your superuser settings.
SilverStone641 said:
Yessir. Since day 2 ^_^ (plus its in my sig)
Sent from my Evo using Tapatalk
Click to expand...
Click to collapse
Sorry, using the xda app which doesn't display the sig.
Sent from the void...
So, as far as speed/responsiveness of governors goes:
Fastest ------------------------------------------------------> Slowest
Performance ------> ondemand ------> Interactive? ------> Conservative
Poor battery consumption --------------------> Best battery consumption
This thread is exactly what i was looking for, thanks for the detailed explanation of the what and why.
Will try it out this week with Fresh 3.1 and KK#8.
this thread helped a lot, i was just in setCPU messing around with things, now i can use this thread to help get what i want. i bookmark'd the hell out of this thread
Thanks...OP...hopefully people will read it first...try things..then ask questions...
I am still working to see how to get the best battery life from cm6 and snap..
Thanks for the helpful post!
I experienced a "nice load" when I unboxed my EVO. Anyway the only setting I use is:
Screen off: 245/128 on demand.
Works for me. And thanks for this helpful post to help us understand all that technical mumbo jumbo.
So I got a rooted Vanilla install of the latest Sprint OTA Froyo build on my EVO. (the 3.29.651.5 build).
I purchased the latest version of SetCPU (2.03) last night and used the autodetect method for the CPU governor.
I notice on my EVO that I only have these 3 options:
Scaling:
ondemand, userspace and performance....
Is this normal to not have the conservative setting since I have the defacto kernel with a vanilla rom?
Thanks
Sheldon
Okay, so I figured it out, my default kernel does not have these other options, oh well......
Nice app though, so far its working really well.
The question is simple, the higer the freq. the more battery consumption? i am asking because i cannot see any difference from 1.4GHZ to 1.0GHZ, the battery consumption is the same under oxygen and francos kernels. i would be grateful if the experts would give us some advise or their opionion. I know it is subjective but i would like a second opinion.
Thanks alot guys
If you look with any cpu spy app, you cab see on what clock the processor is used. I mainly have it the lowest and sometimes higher. When you change the max, it should still automatically choose what clock is used, so battery should last as much as before, if not used in high clock.
Sent from my Huawei u8800 using XDA App
Invicta said:
The question is simple, the higer the freq. the more battery consumption? i am asking because i cannot see any difference from 1.4GHZ to 1.0GHZ, the battery consumption is the same under oxygen and francos kernels. i would be grateful if the experts would give us some advise or their opionion. I know it is subjective but i would like a second opinion.
Thanks alot guys
Click to expand...
Click to collapse
Probably not much difference, when you overclock, think the cpu voltage remains the same as it is on 800mhz... And the highest cpu freq is rarely even at use...
Invicta said:
The question is simple, the higer the freq. the more battery consumption? i am asking because i cannot see any difference from 1.4GHZ to 1.0GHZ, the battery consumption is the same under oxygen and francos kernels. i would be grateful if the experts would give us some advise or their opionion. I know it is subjective but i would like a second opinion.
Thanks alot guys
Click to expand...
Click to collapse
Well, thanks to most devoted users of U8800, we have somewhat better speed+battery life than stock also. To answer your question, yes depending on your activity the frequency have some impact, but overall shouldn't be huge in change, for example from .800 to 1.0GHz will not affect so much in daily use. However from .800 to 1.5GHz would make a somewhat huge gap difference. This doesn't mean it will drain faster if you do same activity as with .800 to 1.0GHz, for example check the watch, answer sms or few "entertainment" breaks. Only when using the phone over a longer period of time that's when you will notice the change of battery life with different frequency. Hope it clears up most hums and huhs for you. I am pretty sure some expert within this field will give a better explanation than me.
Bye~
higher freqs uses more energy, but lower uses less energy but do things slower (so energy consumption is longer). ALSO imo - if you set cpu to 1Ghz the lowest value so it always is 1ghz - it will not consume the same amount of energy if it's in idle mode - it's like your laptop - if cpu is working only in 4-7% of it's power - then the power consumption is lower no matter what freq - how do we know that? - because of heat - the more heat you get - the more energy was used. and when cpu is idle - it will not be hot.
So the answer is - if it saves then in VERY minimal amounts. But even so - i use min freq - 360mhz. it's good for me i do not get any lag so i use it.
I use the "Root System Tool Free", option CPU and I see the graphics of all clocks.
For ex. now at 245 mhz ->46%, at 368 ->10%, at 768 mhz ->18% .... and at 1612 mhz -> 1,8%, at 1804 mhz ->4,9%. Not very mutch use at 1804.
Oxygen-test-140911 + Franco.Kernel1709#1. Clock at 1804 Mhz by Menu-settings-cpu ... and smartassV2 (no profils).
The battery, I charge it all 24 hours. But I like my work... and testing things. When then will dead...I see...
ValenteL said:
I use the "Root System Tool Free", option CPU and I see the graphics of all clocks.
For ex. now at 245 mhz ->46%, at 368 ->10%, at 768 mhz ->18% .... and at 1612 mhz -> 1,8%, at 1804 mhz ->4,9%. Not very mutch use at 1804.
Oxygen-test-140911 + Franco.Kernel1709#1. Clock at 1804 Mhz by Menu-settings-cpu ... and smartassV2 (no profils).
The battery, I charge it all 24 hours. But I like my work... and testing things. When then will dead...I see...
Click to expand...
Click to collapse
cpu spy is more pretty, anyway all those apps just reads text file of cpu stat and that's it
Tommixoft said:
cpu spy is more pretty, anyway all those apps just reads text file of cpu stat and that's it
Click to expand...
Click to collapse
Thanks
But I like more the Root System Tool, because has also a Linux Console. I use it when I want make some cmd's Linux in #. I don't like the Terminal Emulator.
Well, there is a "catch" somewhere in there. The frequency does indeed affects the power consumption of the CPU and greatly at that too! But the thing is, your CPU is not the worst enemy of your battery life. Even though CPU consumes more power in higher frequencies, it still can not compete with what your screen LEDs or your GSM module or your GPS chip consumes leisurely. So, if you're looking at the overall picture -meaning if you're wondering if it will affect how long you'll be able to use your battery in your phone- the answer is, "yes but not so much". Especially if you're switching the CPU frequency based on the demand (like using smartass or on-demand governors)
Here are the thing that sucks your batteries life juice like a vampire :
Your Screen (especially background LEDs)
GSM module (talking, using GPRS/Edge/3G network communication)
GPS chip
Wireless module (this also includes Bluetooth, even though it does not consume as much as Wireless network access but everything is relative -think about playing music through A2DP headphones compared to having your wireless network active but not using it much-)
(oh yes, I love to use lots of parenthesis -and even this hyphenation thingy- )
Correct me if I'm wrong about anything by the way ..
Regards ..
I did some experiments with a msm8250 a while back and there's a graph here:
http://forum.xda-developers.com/showpost.php?p=14324649&postcount=3786
msm7x30 should be fairly similar though the graph is probably shallower since it's a smaller process size.
The CPU uses no power when it's not in use, even with the display on, the CPU is powered down completely when idle (power collapse).
Hi,
Can anyone direct me to some info on altering CPU settings on my N10?
I've recently rooted and flashed the latest AOKP ROM and am interested in the performance control.
The current max is set to 1700Mhz which, of course, is the rated value for the CPU. Will I do any damage by increasing it and what effects do changing the voltage setting have?
Also, is there a guide to using Governor and IO schedulers?
Thanks in advance.
Pharmbob said:
Hi,
Can anyone direct me to some info on altering CPU settings on my N10?
I've recently rooted and flashed the latest AOKP ROM and am interested in the performance control.
The current max is set to 1700Mhz which, of course, is the rated value for the CPU. Will I do any damage by increasing it and what effects do changing the voltage setting have?
Also, is there a guide to using Governor and IO schedulers?
Thanks in advance.
Click to expand...
Click to collapse
Well I have to say that I haven't come across any device specific tutorials for governors or schedulers, and I would love to see someone put one together for the N10. My understanding is that the stock MHz value is purposely set on the slightly lower side to prevent any possibility of electrical issues. In regards to the voltage, lowering it may cause loss of display due to a lack of power and a major problem with increasing voltages is usually thermal throttling from high CPU temperatures.
But if you're interested in more governor and over clocking capabilities you should look at the KTManta kernel, I'm running it right now. You should be able to relatively safely over clock up to 1800MHz without crazy effects, but much more than that and you'll significantly reduce the tablet life.
Sent from my Nexus 10 using XDA Premium HD app
Huggogguh said:
Well I have to say that I haven't come across any device specific tutorials for governors or schedulers, and I would love to see someone put one together for the N10. My understanding is that the stock MHz value is purposely set on the slightly lower side to prevent any possibility of electrical issues. In regards to the voltage, lowering it may cause loss of display due to a lack of power and a major problem with increasing voltages is usually thermal throttling from high CPU temperatures.
But if you're interested in more governor and over clocking capabilities you should look at the KTManta kernel, I'm running it right now. You should be able to relatively safely over clock up to 1800MHz without crazy effects, but much more than that and you'll significantly reduce the tablet life.
Sent from my Nexus 10 using XDA Premium HD app
Click to expand...
Click to collapse
Does overclocking to 1800MHz make much of a difference to performance?
I've just flashed the KTMANTA kernel and I am impressed.
Would it be detrimental to increase the GPU Max?
Pharmbob said:
I've just flashed the KTMANTA kernel and I am impressed.
Would it be detrimental to increase the GPU Max?
Click to expand...
Click to collapse
im not on AOKP ROM so i dont know how the CPU performance is optimized but on original rom the CPU speed rarely/never gets over
1000mhz
so overclocking to 1800mhz is pointless.
you need to upper the boost pulse instead
Patrik G said:
im not on AOKP ROM so i dont know how the CPU performance is optimized but on original rom the CPU speed rarely/never gets over
1000mhz
so overclocking to 1800mhz is pointless.
you need to upper the boost pulse instead
Click to expand...
Click to collapse
And what does the boost pulse do?
Pharmbob said:
And what does the boost pulse do?
Click to expand...
Click to collapse
it will boost the CPU speed higher when its under load
change this settings (leave the rest at default) in KTweakerT and the N10 will fly
CPU Governor: pegasusq
I/O Scheduler: ROW
under "Governor Adjustmensts" change these:
boostpulse_value: 1700
up_threshold: 40
up_threshold_at_min_freq: 20
Under Extras:
to keep your saved settings when the screen i off you will need to change the "Screen off profile Mhz" to something else than the Defualt setting
change it to 100mhz
also go in under the "Thermal Throttle Control" (settings for kids)
change these values to:
CPU start Throttle: 100
CPU Stop Throttle: 99
Memory Start Throttle: 100
Memory Stop Throttle: 99
that is the only way to get rid of the Throttling control.
one note is when you play games lock the min/max mhz to the same speed for an example (MIN 1500mhz/MAX 1500mhz)
its the up/down CPU speeds changes that causes it to lag
for movies lock the min/max speed at 800mhz and your blu ray movies will play without microstutter
also use BS player that has the fastest HW decoding
NOW Enjoy your Nexus 10 as it was ment to be used
Patrik G said:
it will boost the CPU speed higher when its under load
change this settings (leave the rest at default) in KTweakerT and the N10 will fly
CPU Governor: pegasusq
I/O Scheduler: ROW
under "Governor Adjustmensts" change these:
boostpulse_value: 1700
up_threshold: 40
up_threshold_at_min_freq: 20
Under Extras:
to keep your saved settings when the screen i off you will need to change the "Screen off profile Mhz" to something else than the Defualt setting
change it to 100mhz
also go in under the "Thermal Throttle Control" (settings for kids)
change these values to:
CPU start Throttle: 100
CPU Stop Throttle: 99
Memory Start Throttle: 100
Memory Stop Throttle: 99
that is the only way to get rid of the Throttling control.
one note is when you play games lock the min/max mhz to the same speed for an example (MIN 1500mhz/MAX 1500mhz)
its the up/down CPU speeds changes that causes it to lag
for movies lock the min/max speed at 800mhz and your blu ray movies will play without microstutter
also use BS player that has the fastest HW decoding
NOW Enjoy your Nexus 10 as it was ment to be used
Click to expand...
Click to collapse
Thanks for the info, I'm apprehensive about altering the thermal settings though. Will letting the processor get as hot as 100 degrees not reduce the life of the chip?
Pharmbob said:
Will letting the processor get as hot as 100 degrees not reduce the life of the chip?
Click to expand...
Click to collapse
sure if it would
i have already measured the CPU temp without the back case and its nowhere near 100 degrees
50 is more true so you are safe even without the Throttling control.
the thermal throttling control isnt measuring temps it only guess them.
Patrik G said:
it will boost the CPU speed higher when its under load
change this settings (leave the rest at default) in KTweakerT and the N10 will fly
CPU Governor: pegasusq
I/O Scheduler: ROW
under "Governor Adjustmensts" change these:
boostpulse_value: 1700
up_threshold: 40
up_threshold_at_min_freq: 20
Under Extras:
to keep your saved settings when the screen i off you will need to change the "Screen off profile Mhz" to something else than the Defualt setting
change it to 100mhz
also go in under the "Thermal Throttle Control" (settings for kids)
change these values to:
CPU start Throttle: 100
CPU Stop Throttle: 99
Memory Start Throttle: 100
Memory Stop Throttle: 99
that is the only way to get rid of the Throttling control.
one note is when you play games lock the min/max mhz to the same speed for an example (MIN 1500mhz/MAX 1500mhz)
its the up/down CPU speeds changes that causes it to lag
for movies lock the min/max speed at 800mhz and your blu ray movies will play without microstutter
also use BS player that has the fastest HW decoding
NOW Enjoy your Nexus 10 as it was ment to be used
Click to expand...
Click to collapse
Sorry for being such a noob but this is my first android device. I installed the kt room and the tweaker it all works fine. Bit whem i changed the room all my stift dissapeard. I vacker up my last rom can i just switch to that and backup with titan?
Btw it improved gta gaming very much. Bit what happens IF i always have the min/max on 1500?
Sent from my Nexus 10 using XDA Premium HD app
p0xis said:
Bit what happens IF i always have the min/max on 1500?
Sent from my Nexus 10 using XDA Premium HD app
Click to expand...
Click to collapse
the tablet will explode after 30 minutes.
its the new Self destruction detection from samsung.
Im looking for someone to tell me what they think is there best settings to be used in there prefered app for example setcpu,faux123, do you overclock and to what settings, what has worked for you guys
i generally dont use my phone to much in a day so battery last the day so i dont mind it being overclocked when im using it if it means it runs faster but drains battery, some suggestion please, im a novice
no flames about i used the word 'best' im looking for opionons thankyou if you help
Whelan189 said:
Im looking for someone to tell me what they think is there best settings to be used in there prefered app for example setcpu,faux123, do you overclock and to what settings, what has worked for you guys
i generally dont use my phone to much in a day so battery last the day so i dont mind it being overclocked when im using it if it means it runs faster but drains battery, some suggestion please, im a novice
no flames about i used the word 'best' im looking for opionons thankyou if you help
Click to expand...
Click to collapse
IMO, no overclock is required. The phone is fast and snappy enough.
That said, I underclock the minimum frequency and undervolt throughout the frequency table.
This ensures that I get better battery life, without any decrease in performance.
I'm running CyanogenMod 10.1.0 Stable Release.
I'm using franco.kernel r161, and his companion app - franco.kernel updater.
The following settings are giving me great performance and battery life.
CPU Frequency Range : Screen On - 384 MHz - 1512 MHz, Screen Off - 384 MHz
CPU Governor : Interactive
GPU Frequency: 400 MHz
Frequency Table Undervolt : -125 mV throughout
Disclaimer - This is for a {fast} binned CPU. Check your device's CPU binning via this link, and do some trial-error to find the perfect undervolt for your device.
Good Luck!
Hey guys, Kyuubi10 back once again with another Guide.
I thought it might be useful to pop in a couple results of my trial and error for the HTC One M8.
Note: This is not scientifically, calculated accurate, but it's close enough, based on estimates.
After following these guides:
http://forum.xda-developers.com/showthread.php?t=2769899
https://vjnaik.wordpress.com/2015/06/25/kernel-tweak-interactive-governor-paramaters-rooted-phone/
I decided to make a summary guide of the above but with specific HTC One M8 values.
Since I agree with the idea of "race to idle" embodied in the Wheatley governor, I tried emulating that on the Interactive governor while also keeping it as efficient as possible.
Here are the values (all others not mentioned, leave default):
Code:
[B]above_hispeed_delay [/B]- 80000 2265600:10000
[B]go_hispeed_load[/B] - 95
[B]hispeed_freq[/B] - 1728000
[B]io_is_busy[/B] - 1
[B]min_sample_time[/B] - 10000
[B]target_loads[/B] - 45 729000:80 883200:50 1267000:85 1497600:50 1728000:90 1958400:50
[B]timer_rate[/B] - 10000
[B]timer_slack[/B] - 5000
"above_hispeed_delay" makes sure that longer time is spent on the frequency step 1.72Ghz, before quickly raising higher into max freq.
1.72Ghz is the most energy efficient frequency with a good performance, e.g. it will not cause lag during casual usage, while it uses minimal voltage.
If the load is too high for this frequency to handle, I set the time short once it's gone over this freq step so that it will not waste time before reaching max freq. Thus dealing with the issue asap.
Another important parameter is "target_load", with this I have defined that at each efficient freq step the load needed to overcome it would be higher than normal. But it would up-scale quickly when using non-efficient frequencies.
The other parameters I have set so that the frequency is lowered as soon as CPU load is finished, so that it will rush back to idle as quickly as possible.
The interesting thing about this set-up is that for general, non heavy usage, it basecally functions as if I have underclocked to 1.72Ghz, but when the CPU is truly pushed it reaches up to 2.5Ghz which is my Overclocked max freq value.
Thus both saving battery and providing high performance.
I have felt no lag, and it's been quite a smooth experience while I used this
Combined with using GPU rendering (found in developer settings), and Seeder, the over all usage is pretty good.
Battery usage has been very efficient and I have managed to squeeze out an extra hour or two using this.
I highly recommend it!
Hope I helped you guys... don't forget to press the thanks button if you also feel that I did!:good::good:
I noticed I have some governor settings left at 0 or blank. I did some quick googling, found some other tweaks for the M8 and the interactive governor. So I played around a bit, and I think the following would be useful to add to the above tweaks.
-----------------------
sampling_down_factor: 60000
sync_freq: 1036800
up_threshold_any_cpu_load: 65
up_threshold_any_cpu_freq: 1190400
boost: 0
boostpulse_duration: 80000
--------------------
Also of note there is not a entry for " io_is_busy " under the Interactive governor under ElementalX Sense kernel v6.03. I believe it's possible to modify the governor to add the function, if it's desired.
Hope this helps others.
nice one i read the links that you posted and follow the guides there also to tweak the interactive governor on the first link that you posted is really interesting he has updated that post also, i followed his guide inspired by your guide and i have been getting good results on my phone with battery and performance i mean almost no battery drain at all while my phone is idle. thanks for the help mate!
Plugged the settings into Yankactive on DU. Quick, freqs stay low when nothings going on, seems legit. I set my timer_rate higher tho, 10000 feels a little low, makes me think that the CPU will spend too much time polling loads.
SaskFellow said:
I noticed I have some governor settings left at 0 or blank. I did some quick googling, found some other tweaks for the M8 and the interactive governor. So I played around a bit, and I think the following would be useful to add to the above tweaks.
-----------------------
sampling_down_factor: 60000
sync_freq: 1036800
up_threshold_any_cpu_load: 65
up_threshold_any_cpu_freq: 1190400
boost: 0
boostpulse_duration: 80000
--------------------
Also of note there is not a entry for " io_is_busy " under the Interactive governor under ElementalX Sense kernel v6.03. I believe it's possible to modify the governor to add the function, if it's desired.
Hope this helps others.
Click to expand...
Click to collapse
Some of those actually make no difference. Since they are overruled by other perameters. E.g. up_threshold aren't used in interactive, since they follow target_load instead.
Sampling_down_factor on the other hand is overrulled by the timer features of interactive.
When you use ondemand, or conservative, sampling_down_factor is a fun parameter to play with, but not interactive.
While Sync_Freq I don't like using because it raises minimum frequency to its value...although temporarily, the timer features can already deal with CPU loads efficiently.
lil_kujo said:
nice one i read the links that you posted and follow the guides there also to tweak the interactive governor on the first link that you posted is really interesting he has updated that post also, i followed his guide inspired by your guide and i have been getting good results on my phone with battery and performance i mean almost no battery drain at all while my phone is idle. thanks for the help mate!
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Great The links are important!! They are my sources, and often contain much more detail than what I use in my guides. I attempt creating a well ordered summary, but my sources are better if you don't mind reading loads.
I'm glad I could help
munkyvirus said:
Plugged the settings into Yankactive on DU. Quick, freqs stay low when nothings going on, seems legit. I set my timer_rate higher tho, 10000 feels a little low, makes me think that the CPU will spend too much time polling loads.
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That's the idea. And never heard of Yankactive...but I'm gonna assume it's good lol.
And about time_rate, you are right, but you are also wrong.
There isn't a true right answer unless someone performs a scientific experiment in order to fully test which one is better.
But I'll explain why I put my one short... I want the frequencies returning to IDLE asap. While yes, you are right it's polling often, it also returns to idle much faster, rather than staying at higher frequency uselessly wasting battery.
I'll try to run some tests checking CPU load, if CPU load considerable lowers I'll come back and report.
Yankactive is Interactive with some under the hood tweaks, I believe, same tunables. I also looked at some documentation on Interactive and I think the target_loads have to be in ascending order based on load when paired with clock speeds, I'm gonna mess with them a bit and see what I get. Link
munkyvirus said:
Yankactive is Interactive with some under the hood tweaks, I believe, same tunables. I also looked at some documentation on Interactive and I think the target_loads have to be in ascending order based on load when paired with clock speeds, I'm gonna mess with them a bit and see what I get. Link
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And no, target_loads has to be in ascending order based on FREQUENCY. You are applying load percentages to frequency ranges, therefore it is imperative that its the frequency defining the order.
e.g. 50 4:80 10:20 12: 50 means:
50% load before going to the next frequency step, until you reach frequency 4, then use 80% instead until frequency 10, then use 20% instead until 12, then use 50% until max frequency.
Feel free to play with them as much as you want, just make sure to keep the idea of using efficient frequency steps in mind.
Kyuubi10 said:
And no, target_loads has to be in ascending order based on FREQUENCY. You are applying load percentages to frequency ranges, therefore it is imperative that its the frequency defining the order.
e.g. 50 4:80 10:20 12: 50 means:
50% load before going to the next frequency step, until you reach frequency 4, then use 80% instead until frequency 10, then use 20% instead until 12, then use 50% until max frequency.
Feel free to play with them as much as you want, just make sure to keep the idea of using efficient frequency steps in mind.
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Click to collapse
Thank you for the knowledge dump, been scraping the barrel for weeks trying to figure out tunables!
munkyvirus said:
Thank you for the knowledge dump, been scraping the barrel for weeks trying to figure out tunables!
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Hehe it's a pleasure.
It's a way I find to give back to the community, since I learn so much through it. I can try help make life easier for those who follow the same path I did.
Hello kyuubi10 thanks for your help, would it be ok to change mp decision to battery saver mode ? Whats your take on that?
Wow, this is awesome! I had the performance gov on, which just destroyed my battery. Now, I have a question for you!
What is your take on "Multicore Power Savings" ? I'm using a flarport kernel which has it set to aggressive by default. Should this be changed to anything else while using your gov settings? Thanks for any assistance!
lil_kujo said:
Hello kyuubi10 thanks for your help, would it be ok to change mp decision to battery saver mode ? Whats your take on that?
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I have never heard of mpdecision having a battery saver mode XD
Would you please expand on that? Also tell me which tweaking app you are using?
Kyuubi10 said:
I have never heard of mpdecision having a battery saver mode XD
Would you please expand on that? Also tell me which tweaking app you are using?
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It's in the ex app mate, it uses a less aggressive version of mpdecision to saver on battery power but I can't say that I noticed much improvement TBH.
Sent from my HTC One_M8 using Tapatalk
Anonaru said:
Wow, this is awesome! I had the performance gov on, which just destroyed my battery. Now, I have a question for you!
What is your take on "Multicore Power Savings" ? I'm using a flarport kernel which has it set to aggressive by default. Should this be changed to anything else while using your gov settings? Thanks for any assistance!
Click to expand...
Click to collapse
You had performance on?? You do realise that the perf gov basically keeps your CPU cores running on max frequency all the time right?
No wonder your battery was dying XD
Anyhoo....good thing you found my guide
Now, about multicore power savings, as usually with most things you will be compromising something to gain something else...always keep that in mind.
With MPS you'll be giving up some multitasking, in order to gain some battery savings.
Why (you may ask)?
Well, think about a to-do list, and for each list you have one person completing the tasks within that list. Let's say you have four lists and 4 people completing those tasks.
What MPS does is it takes as many tasks as possible and places them within a single list, for one person to do. At the end of the day that one person will have done a lot of work, while the other 3 will have done very little work. The drawback? The work was completed much slower, because only one person was doing it.
Why can MPS be good? It is the way it chooses which CPU to use to add the tasks to, it chooses CPUs which are already turned on, rather than turning a new one on.
The frequency voltages on each core range from the lowest of 775mV, to the highest of 1075mV. That's a 300mV increase in battery consumption between lowest frequency and highest. (Mind you, 1075 for me is an overclocked value, if you are not OC then it will be even less)
When CPU cores have nothing to do they get turned off....they don't idle at 775mV....they are literally off. Therefore around 0mV usage XD
If you get tasks which would have run on 2 CPUs at minimum frequency, using only 775mV each, and put them to run on only 1 CPU at MAX frequency at 1075mV, you still have about 400mV battery savings. Now lets say its something which would have used 4 CPUs, but you end up using only two.... then the battery savings double to 800mV.
Final answer...it depends on your tastes, what do you prefer most? Multitasking or battery saving.
Personally I keep it enabled, but not aggressive.
But if you really don't care about multitasking, you may as well leave it as aggressive.
lil_kujo said:
Hello kyuubi10 thanks for your help, would it be ok to change mp decision to battery saver mode ? Whats your take on that?
Click to expand...
Click to collapse
smeejaytee said:
It's in the ex app mate, it uses a less aggressive version of mpdecision to saver on battery power but I can't say that I noticed much improvement TBH.
Sent from my HTC One_M8 using Tapatalk
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Click to collapse
Well, I use adiutor, so I don't have that option.
I am happy with my phone how it is (if it wasn't for the damned plug issues XD)
But @lil_kujo, as @smeejaytee said....he hasn't noticed much improvement.
So I'd trust his advice
Kyuubi10 said:
You had performance on?? You do realise that the perf gov basically keeps your CPU cores running on max frequency all the time right?
No wonder your battery was dying XD
Anyhoo....good thing you found my guide
Now, about multicore power savings, as usually with most things you will be compromising something to gain something else...always keep that in mind.
With MPS you'll be giving up some multitasking, in order to gain some battery savings.
Why (you may ask)?
Well, think about a to-do list, and for each list you have one person completing the tasks within that list. Let's say you have four lists and 4 people completing those tasks.
What MPS does is it takes as many tasks as possible and places them within a single list, for one person to do. At the end of the day that one person will have done a lot of work, while the other 3 will have done very little work. The drawback? The work was completed much slower, because only one person was doing it.
Why can MPS be good? It is the way it chooses which CPU to use to add the tasks to, it chooses CPUs which are already turned on, rather than turning a new one on.
The frequency voltages on each core range from the lowest of 775mV, to the highest of 1075mV. That's a 300mV increase in battery consumption between lowest frequency and highest. (Mind you, 1075 for me is an overclocked value, if you are not OC then it will be even less)
When CPU cores have nothing to do they get turned off....they don't idle at 775mV....they are literally off. Therefore around 0mV usage XD
If you get tasks which would have run on 2 CPUs at minimum frequency, using only 775mV each, and put them to run on only 1 CPU at MAX frequency at 1075mV, you still have about 400mV battery savings. Now lets say its something which would have used 4 CPUs, but you end up using only two.... then the battery savings double to 800mV.
Final answer...it depends on your tastes, what do you prefer most? Multitasking or battery saving.
Personally I keep it enabled, but not aggressive.
But if you really don't care about multitasking, you may as well leave it as aggressive.
Click to expand...
Click to collapse
Hah, thanks for the guide-- I am pretty well versed in task / resource allocation on multi-threaded systems, though
Main reason I was asking was because I haven't a clue what some of the values are on this interactive gov. Just wanted to make sure they didn't clash! I'll chance it to "Enabled" rather than "Aggressive," because a compromise between the two sounds the best
As for Performance gov-- default setting on this flarport kernel, didn't bother to check it until I noticed that any time a core was on, it was racing at 2.5ghz, even with nothing going on. Battery pretty much committed suicide
Anonaru said:
Hah, thanks for the guide-- I am pretty well versed in task / resource allocation on multi-threaded systems, though
Main reason I was asking was because I haven't a clue what some of the values are on this interactive gov. Just wanted to make sure they didn't clash! I'll chance it to "Enabled" rather than "Aggressive," because a compromise between the two sounds the best
As for Performance gov-- default setting on this flarport kernel, didn't bother to check it until I noticed that any time a core was on, it was racing at 2.5ghz, even with nothing going on. Battery pretty much committed suicide
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Click to collapse
LOL I suggest you change kernel asap! If the dev uses uses Performcance gov as his default he doesn't know what he is doing XD
And no, as far as I know governor tunables won't ever clash with MPS.
Thanks!
rjavc said:
Thanks!
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You're welcome! Pleasure to help.
But I'd appreciate if you press the thanks button on the relevant posts which helped you. That's the XDA way :good::good:
Kyuubi10 said:
You're welcome! Pleasure to help.
But I'd appreciate if you press the thanks button on the relevant posts which helped you. That's the XDA way :good::good:
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Click to collapse
Hi mate, I wondered if I could ask your advice, I want to set interactive up on my maw Android TV box it's quad 1.5gb and I want maximum performance as its constantly plugged in, there is no battery so that's not an issue,
Sorry if you think this OT but I thought I'd ask you as you know the governor well, thank you in advance mate.
Sent from my HTC One_M8 using Tapatalk