Performance mode - Samsung Galaxy S10+ Questions & Answers

It says high performance but does it actually overclock or what does it exectly do

kevinireland11 said:
It says high performance but does it actually overclock or what does it exectly do
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No traditional overclock by higher clock speed, just more power through higher voltages (and thus higher temps) i guess and maybe juice up and the gpu and ram for max performance.

kevinireland11 said:
It says high performance but does it actually overclock or what does it exectly do
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I would guess that performance mode only changes CPU governor to keep all cores and frequency always active and available, avoiding the overhead of turn it on and off when needed.
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Well afaik high performance only increases the brightness and the screen resolution.

I've been running performance mode the past couple weeks (set it to not change brightness) and haven't noticed any difference in battery. Still getting a full days battery and 6-7 hours SOT with LTE, GPS, Bluetooth on all the time and no wifi.

Related

Overclocking N1

You can overclock n1 only to 1.190ghz, while desire hd 1.9ghz and the htc desire Z (G2) 2.0ghz. Does N1 has to old cpu?
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Yes. 1st Gen snapdragon
Sent from my Nexus One using XDA App
if you want to OC you N1 go and OC you Desktop is the best choice
Why would you wanna over clock your phone? I have my N1 clocked @ 691 and works really fast with the MIUI rom and battery performance is better than stock. I'm not a fan of custom rom & rooting but I been pretty pleased so far. overclocking the nexus one will drain your battery like crazy plus the 1st Gen of snapdragons weren't as good with graphics as the A4chips and humming birds.
i have mine underclocked too and it works fine. try going a step further and underclocking it to like 422 when it's sleeping/standby. it'll help your battery
josemedina1983 said:
Why would you wanna over clock your phone? I have my N1 clocked @ 691 and works really fast with the MIUI rom and battery performance is better than stock. I'm not a fan of custom rom & rooting but I been pretty pleased so far. overclocking the nexus one will drain your battery like crazy plus the 1st Gen of snapdragons weren't as good with graphics as the A4chips and humming birds.
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The connection between clockspeed and power consumption is not as strong as you think. But without a doubt it has an influence. Much more important is the voltage. If you "undervolt" the Nexus One CPU you can even get better battery live with higher clockspeed.
And if you use a tool to change the clockspeed depending on the situation (display on/off, battery % left, workload) and undervolt the cpu you can safe A LOT of juice.
With Wildmonks kernel, MIUI and SetCPU I get a much better lifetime than ever before even though my Nexus runs at 1152MHz.
Actually, the frequency makes a BIG difference in power consumption. Think of it this way - each clock causes changes propagating in transistors, which are the actual power draw. More clocks = more changes = more power drawn. As easy as that.
So, having 10% higher frequency and 10% lower voltage compensates each other.
Nexus has examples that overclock to 1.5GHz when overvolted, like Desire Z and Desire HD (both of those have to be overvolted to go up stable from 1.2GHz). Most of Nexus Ones fail when overclocking and don't reach higher than 1.2GHz, but it might be not because of the CPU, but because of other devices on system board.
Generally, it is only when you change the voltage (which is required to stabilize the higher frequency) that you see noticeable differences in battery life.
Jack_R1 said:
Actually, the frequency makes a BIG difference in power consumption. Think of it this way - each clock causes changes propagating in transistors, which are the actual power draw. More clocks = more changes = more power drawn. As easy as that.
So, having 10% higher frequency and 10% lower voltage compensates each other.
Nexus has examples that overclock to 1.5GHz when overvolted, like Desire Z and Desire HD (both of those have to be overvolted to go up stable from 1.2GHz). Most of Nexus Ones fail when overclocking and don't reach higher than 1.2GHz, but it might be not because of the CPU, but because of other devices on system board.
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willverduzco said:
Generally, it is only when you change the voltage (which is required to stabilize the higher frequency) that you see noticeable differences in battery life.
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Ok, some additions required.
Leakage is also dependent on power, and the dependency graph isn't linear - and starts breaking upwards at some point, usually being a tad above the max designed voltage.
Going down in voltage makes leakage change approximately linear, and doesn't affect nearly as much as going up.
Overclocking will draw power just as I noted above - exactly with the same percentage difference - only when the clock is reaching the overclocked area, which happens only when you're playing games or doing CPU-intensive tasks.
Undervolting will affect leakage, which happens 100% of the time.
So yes, when running in dynamically scaled environment, undervolting has more effect than overclocking. On desktop PC, running the same clock frequency constantly, the effect is the same.
Very True. And I wasn't saying that overclocking, while at the same voltage, didn't draw ANY more power... I just am trying to say that (for example in this graph) overclocking only has a small effect on power draw until you actually change the voltage. In that same example, going from 3.4 to 3.8 GHz only adds about 6% current draw while at the same vCore, while going up a similar amount in clock speed.
I'd even wager to say that if you're slightly under-volted and as heavily overclocked as you can go at that given voltage, you'll save some trivial amount of power versus stock because of the fact that voltage affects power draw significantly more than clock speed. I would also wager that if you are at an overclocked speed and are at stock voltage, the amount of current and power draw will be almost indistinguishable to the end user, since things like display will almost always use much more power if the display is on for any appreciable amount of time.
Jack_R1 said:
Ok, some additions required.
Leakage is also dependent on power, and the dependency graph isn't linear - and starts breaking upwards at some point, usually being a tad above the max designed voltage.
Going down in voltage makes leakage change approximately linear, and doesn't affect nearly as much as going up.
Overclocking will draw power just as I noted above - exactly with the same percentage difference - only when the clock is reaching the overclocked area, which happens only when you're playing games or doing CPU-intensive tasks.
Undervolting will affect leakage, which happens 100% of the time.
So yes, when running in dynamically scaled environment, undervolting has more effect than overclocking. On desktop PC, running the same clock frequency constantly, the effect is the same.
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Jack_R1 said:
Actually, the frequency makes a BIG difference in power consumption. Think of it this way - each clock causes changes propagating in transistors, which are the actual power draw. More clocks = more changes = more power drawn. As easy as that.
So, having 10% higher frequency and 10% lower voltage compensates each other
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I wouldn't call 10% more peak power consumption big if you take in account that the cpu is only running at the max clock speed a very small amount of time. 90% of the time the device is sleeping anyway and even if it's not you barely need the max clock speed. But if you do you will recognize the difference.
On the other side the reduced voltaged can safe you power all the time.
willverduzco said:
I'd even wager to say that if you're slightly under-volted and as heavily overclocked as you can go at that given voltage, you'll save some trivial amount of power versus stock because of the fact that voltage affects power draw significantly more than clock speed. I would also wager that if you are at an overclocked speed and are at stock voltage, the amount of current and power draw will be almost indistinguishable to the end user, since things like display will almost always use much more power if the display is on for any appreciable amount of time.
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That's exactly what I experienced.
Pommes_Schranke said:
I wouldn't call 10% more peak power consumption big if you take in account that the cpu is only running at the max clock speed a very small amount of time. 90% of the time the device is sleeping anyway and even if it's not you barely need the max clock speed. But if you do you will recognize the difference.
On the other side the reduced voltaged can safe you power all the time.
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Yes, you're right, and that's why I corrected myself in my second post. I totally forgot about the frequency scaling.
Off topic, but this is why I love XDA. Rational debate over a subject by intelligent people, where there usually isn't flaming. Thanks added to the two of your posts.

anyone tried undervolting xperia play

Has anyone treid undervolting I used the setxperia its pretty useful i dnt know if it does undervolt or not does anyone know im using doomkernel latest
If you mean underclock then yes you can underclock using even the stock kernel. The only advantages you will get with underclocking is slightly better battery life but your phone will be slower.
I dont recommend underclocking your phone any lower than 800mhz, If you clock it any lower than that you will start to notice the slowness.
faisaldante said:
Has anyone treid undervolting I used the setxperia its pretty useful i dnt know if it does undervolt or not does anyone know im using doomkernel latest
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I'm undervolted pretty good, my 1.5 GHz runs at the stock 1GHz voltage (1200) it does help a little. The lower frequencies are where you're going to see better battery while your screens off.
Sent from my R800i using Tapatalk
Clienterror said:
I'm undervolted pretty good, my 1.5 GHz runs at the stock 1GHz voltage (1200) it does help a little. The lower frequencies are where you're going to see better battery while your screens off.
Sent from my R800i using Tapatalk
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So you noticed d difference in batteries and stuf
faisaldante said:
So you noticed d difference in batteries and stuf
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Yea, I notice the most battery gain from when its sleeping with a setcpu profile to keep it at minimum mhz when the screen is off.
Sent from my R800i using Tapatalk
I think your all mixing underCLOCK and underVOLT, underCLOCK means you lower the clock speed below the stock clock making the phone consume less power, you can use SetCPU to do that
http://www.appbrain.com/app/setcpu-for-root-users/com.mhuang.overclocking
underVOLT is when you reduce the power to the CPU at various frequencies an app such as setxperia like the OP said or myrt undervolt can do that for you,
http://www.appbrain.com/app/myrt-undervolt-gui/com.myrt.myrtundervoltgui
This helps you save more power but can lead to shutdowns if you really reduce the power too much. So yeah, stop confusing the two, it's annoying
also you can use system tuner pro !
it can do all the options at once .
ff7fan4eva said:
I think your all mixing underCLOCK and underVOLT, underCLOCK means you lower the clock speed below the stock clock making the phone consume less power, you can use SetCPU to do that
http://www.appbrain.com/app/setcpu-for-root-users/com.mhuang.overclocking
underVOLT is when you reduce the power to the CPU at various frequencies an app such as setxperia like the OP said or myrt undervolt can do that for you,
http://www.appbrain.com/app/myrt-undervolt-gui/com.myrt.myrtundervoltgui
This helps you save more power but can lead to shutdowns if you really reduce the power too much. So yeah, stop confusing the two, it's annoying
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Me? No I'm not confused. I notice the most battery savings when I undervolt the lowest frequency and set the profile in setcpu to keep the frequency at the lowest possible. This is because your phone is sitting with the screen off 80%-90% of the time. I don't notice as much of a battery savings by undervolting higher frequencies but I'm sure its there.
Sent from my R800i using Tapatalk
ff7fan4eva said:
I think your all mixing underCLOCK and underVOLT, underCLOCK means you lower the clock speed below the stock clock making the phone consume less power, you can use SetCPU to do that
http://www.appbrain.com/app/setcpu-for-root-users/com.mhuang.overclocking
underVOLT is when you reduce the power to the CPU at various frequencies an app such as setxperia like the OP said or myrt undervolt can do that for you,
http://www.appbrain.com/app/myrt-undervolt-gui/com.myrt.myrtundervoltgui
This helps you save more power but can lead to shutdowns if you really reduce the power too much. So yeah, stop confusing the two, it's annoying
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My bad at least I learned something new
Undervolting's great, I've actually got my 1Ghz frequency running stable at voltage of 975 instead of 1200. In fact, that's the farthest drop I could get with any of the frequencies though (voltage of 950 almost works, but it's not friendly when booting)

Testing a weird kernel tweak. It's working and I don't know why !

ROM: NEAT ROM 4.4.4
KERNEL: gustavo_s' kernel for AOSP version 04 Feb 2015 with Synapse.
So one day when drinking beer I thought to myself: if Ondemand is so sensitive in jumping to higher frequencies, why bother setting the threshold low? So I just simply went to Synapse and set the up-threshold to 99%. Naively I just thought it was to make sure the CPU was full until it needed a faster frequency. To my surprise, a few days later was fantastic: the time my GS spent on high frequencies was so good it looked like I was using conservative, the least time was on 1200MHz and goes up along with lower frequencies. And the performance was intact :silly::silly::silly:
:silly::silly::silly: can anyone confirm you had tried this before?
One last thing: I just enable GPU rendering, I read that GPU used more power so it is not efficient but on this kernel I am able to use 54MHz and 66MHz which only drain 800Mah which is less than the voltage of 200MHz. My first feelinng is that scrolling through Manga app no longer lags. Will this work as I expected, guys? :silly:
P/S: sorrry for my broken English.
dongnguyen2301 said:
ROM: NEAT ROM 4.4.4
KERNEL: gustavo_s' kernel for AOSP version 04 Feb 2015 with Synapse.
So one day when drinking beer I thought to myself: if Ondemand is so sensitive in jumping to higher frequencies, why bother setting the threshold low? So I just simply went to Synapse and set the up-threshold to 99%. Naively I just thought it was to make sure the CPU was full until it needed a faster frequency. To my surprise, a few days later was fantastic: the time my GS spent on high frequencies was so good it looked like I was using conservative, the least time was on 1200MHz and goes up along with lower frequencies. And the performance was intact :silly::silly::silly:
:silly::silly::silly: can anyone confirm you had tried this before?
One last thing: I just enable GPU rendering, I read that GPU used more power so it is not efficient but on this kernel I am able to use 54MHz and 66MHz which only drain 800Mah which is less than the voltage of 200MHz. My first feelinng is that scrolling through Manga app no longer lags. Will this work as I expected, guys? :silly:
P/S: sorrry for my broken English.
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Using gpu in lower frequencies may unstable phone. I use @Gustavo_s kernel too. My first frequency step is 108MHz and 800mV can easly handle this. Lower frequencies only slows phone. Enabling gpu rendering also causes overheating on AOSP roms on i9100 belive me I tested.
Edit: Also 99 is a high value. 85 to 95 is ok.
Sorry for my bad english too..
nhmanas said:
Using gpu in lower frequencies may unstable phone. I use @Gustavo_s kernel too. My first frequency step is 108MHz and 800mV can easly handle this. Lower frequencies only slows phone. Enabling gpu rendering also causes overheating on AOSP roms on i9100 belive me I tested.
Edit: Also 99 is a high value. 85 to 95 is ok.
Sorry for my bad english too..
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Yeah I may feel that right, I'm switching to 66Mhz and it feels better, yet I don't think GPU rendering causes overheating, it felt the same, I'm turning it off for comparison a few days... :silly:
dongnguyen2301 said:
Yeah I may feel that right, I'm switching to 66Mhz and it feels better, yet I don't think GPU rendering causes overheating, it felt the same, I'm turning it off for comparison a few days... :silly:
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I assume you don't care about gaming performance or any graphics intensive tasks? Don't see why this is a weird tweak, but it is still a noteworthy tweak that may help people who want raw computing speed but no gaming.
gsstudios said:
I assume you don't care about gaming performance or any graphics intensive tasks? Don't see why this is a weird tweak, but it is still a noteworthy tweak that may help people who want raw computing speed but no gaming.
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That's right, don't have any single game, but I'm very very into multi-task. Switching from app to app in seconds... so that obviously works for multi-task people.
I recently switched to intellidemand with the same setting and notice the CPU spent even less time on the high frequency, but it begin to has lag so I think ondemand is still my best choice right now

Post here your CPU temperatures!

I want to know what temperatures you guys are getting when not using, light use(net browsing etc.) and heavy use(heavier games). Also include your rom. Stock? Custom?
When I'm not using my phone it's usually nearly 50 degrees. In light use it's 55-62 degrees... and in heavyy use pretty much 62 degrees all the time. Thst can't be normal, right?
I think it's depend where you live. I've temperatures like 25 - 30 in light use and 35-40 in games.
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joe bertolucci said:
I think it's depend where you live. I've temperatures like 25 - 30 in light use and 35-40 in games.
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It's cold here.
T3ER said:
It's cold here.
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Seems your phone have a problem [emoji33]
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It also depends on the mode you are using. Smart mode enables temperature control. Normal mode adjusts these limits and slightly over clocks your CPU.Also, it modifies the interactivity of the cores, so if you are using Normal mode in daily basis give it a try.
GeorgeKatsi said:
It also depends on the mode you are using. Smart mode enables temperature control. Normal mode adjusts these limits and slightly over clocks your CPU.Also, it modifies the interactivity of the cores, so if you are using Normal mode in daily basis give it a try.
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I have tried both modes in gaming and normal use but my phone still gets hot to the point of even having lag in web browser yesterday and when not using temperatures are only 2 degrees lower. I always make sure no app is hogging in background so thats not the problem. I even have phone manager apk disabled because i noticed slightly better battery life when it's disabled but I believe it's mode still stays on even if its disabled. Just in case I still enabled phone manager to make sure I test properly. I forgot to mention my Honor 6 is just a month old. I have been wondering if I should change in warranty to new Honor 6. It just seems to not be normal if even in daily use my phone gets hot.
And one more thing, even before rooting(which I did to try to fix this problem)my phone got as hot as now.
My Honor is getting extremely hot only during benchmark testing or gaming for far too long. So mate I believe that you definitely have to use your warranty ?
Something intresting I found when looking at cpu usage in Kernel Audiutor. The 4 1.3ghz cores are running almost all the time at full speed. Meanwhile the 4 other 1.7ghz cores are barely running while not doing much which is fine. i believe the issue might be more of Huawei's fault(or more like completely) because even with ondemand governor 1.3ghz cores seems to be even too active sometimes. I noticed slight difference with ondemand governor, about 3 degrees colder temperatures. I think I should try lollipop to see if the cpu is better managed there.

is there any rom or kernel to under volt?

just bought a Le Pro 3 and couldn't find any kernel or rom that could under volt. is there any rom or kernel to under volt?. Thx
To undervolt you mean to make the cpu frequencies lower? I am doing that with a program called Kernel Tuner. You can set the CPU and GPU speed and set the CPU governor from there.
The phone it has to be rooted.
motanel_pufos said:
To undervolt you mean to make the cpu frequencies lower? I am doing that with a program called Kernel Tuner. You can set the CPU and GPU speed and set the CPU governor from there.
The phone it has to be rooted.
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what i mean is to lower the CPU or GPU voltage.
I don't know how to do that. As I said, I use Kernel Tuner to set the maximum cpu/gpu speed the phone can go. It's not the same thing. But is better than nothing. The phone works really good even with lower frequencies and I don't need top speed except some greedy games. Now I can reach a sot of over 6 hours with 4-5 hours of heavy gaming.
If you can find a way do undervolt please post it.
Claire2001 said:
what i mean is to lower the CPU or GPU voltage.
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No kernels offer access to the voltage table yet. UV isn't available and I don't think it'll come.
Ace42 said:
No kernels offer access to the voltage table yet. UV isn't available and I don't think it'll come.
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thanks for confirming, time to return the pro 3 or sell it at a loss. was just hoping that out there somewhere there would be a kernel that has the feature to undervolt.
I still don't see the point of undervolting the CPU/GPU on a phone. As long as it works fine and the battery last long enough (and honestly this phone have plenty of battery, I recharge every 2 or 3 days), why?
ZeblodS said:
I still don't see the point of undervolting the CPU/GPU on a phone. As long as it works fine and the battery last long enough (and honestly this phone have plenty of battery, I recharge every 2 or 3 days), why?
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Because he used to do that on older device, and thinks this is some kind of a must function lol. I also have no clue why on earth you would need to underclock pro 3, it doesnt overheat, and it has probably best battery life of all snapdragon 821 devices. Undervolting this device would gain you absolutely nothing, nonsense.

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