Database Users

Kernel scheduler improvement.

Hi there a good news for responsiveness.
A patch of 200 lines have been checked and approved by Linus, improving greatly responsiveness maybe it should be interesting to test it on our phones.
News and links available here.
http://www.phoronix.com/scan.php?page=article&item=linux_2637_video&num=1
Sent from my Nexus One using XDA App

Holy hell, thats a monumental difference!

Awesome, I HATE how laggy my Nexus One gets when I'm compiling the kernel with 64 threads.

Integrated it into my latest kernel build...hasn't tested it out yet though...

intersectRaven said:
Integrated it into my latest kernel build...hasn't tested it out yet though...
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Cool Can't wait to get my hands on this, (But have no time right now) .

Tested with new Rodriguez rom + intersectRaven kernel,
the new room is really nice to use, and the reactivity is awesome !
Really amazing, feel a huge difference in multitasking and fluidity.
Tried with the Miui browser included in the room, the web pages render time are really surprising really nice.

What is the name of the IR kernel you used?

fallingd0wn said:
What is the name of the IR kernel you used?
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http://www.mediafire.com/intersectRaven
2.6.35.8_AVS-CM-NOBOOST_CFS_20101116_2127.zip

so... does this take care of the "Cannot find CPU Subsystem.." (something like this) errors in the logcat when the CPU is pegged ?

buttery smooth!! thanks!!

holy ****. so smooth. got 22fps in nenamark

vivanshah said:
holy ****. so smooth. got 22fps in nenamark
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Doubt thats related as this particular fix is about scheduling.
I get 21.7 FPS @1113, old 2.6.35.7 CM kernel

I'm not seeing any improvement actually...
Sent from my Nexus One using XDA App

What benchmarks would this show up in on the n1?

There's no benchmark about responsiveness or latency of the system at the moment.
But you really can feel it with multitasking.
I've nimbuzz, Skype, tweetdeck, Gmail, Ms email etc everything always ON.
I switch a lot between applications and so I really fell the difference not freeze while switching between browser and calandar music etc.
My nexus one is clearly under heavy usage with me all the time.
So since there's no benches I cannot tell exactly how good it is. But phoronix speak about
-10% lag
+60% responsiveness
Which is awesome! Even just half of that would be excellent!
Sent from my Nexus One using XDA App

liam.lah said:
What benchmarks would this show up in on the n1?
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What is wrong with you people??? If you can only see it in a benchmark, who cares?

teh_lorax said:
What is wrong with you people??? If you can only see it in a benchmark, who cares?
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Nothing wrong with me, would just like to see some real stats, its way too easy to think things "feel faster" especially if you are expecting them to, just like some people feel certain UV kernels have longer life than others, unless you actually do the numbers(which was done), it is really just what people "feel", and that is extremely unreliable.

IntersectRaven - how did u integrate the patch, i am unable to integrate it cleanly

Great!
Applied to PureFroyo kernel. Let's test.
http://forum.xda-developers.com/showthread.php?t=820172

got it to compile, now testing

Anyone else feel like overclocking is just a gimmick

Maybe its just me but I feel like overclocking our phones is unnecessary. It seems like its just for boostin benchmark scores and it doesn't really affect real world performance. For me I used setcpu and it makes the phone slower and laggy when on conservative. Is that just setcpu not playing nice with my phone?
Tapatalkin it from my Epic 4G

Overclocking, for most part, is all about getting the most you can out of what you have. For some its a numbers game, for others it's just because you can. Personally, I like at least having the option open. However, my Epic doesn't like 1.2ghz.
Stock speeds are enough most of the time. I don't usually run the programs that use 100% of the cpu, so I really don't need to worry about it. Though, if I had the capability to OC.. I would.
As for setcpu, I've never experienced any overly excessive lag or anything brought about by its use. Though, by its nature it will be slightly slower to respond.

Coming from a hero, i can tell you overclocking is certainly not a gimmick! It may not be as necessary on these epic cause its crazy-awesome fast from the box, but it still helps. I keep mine at 1.6ghz on conservative, and performance when i play certain games. For me its about the multi-tasking improvment. Also i like to see my icons fade in smooth no matter what i have going on in the phone
But for me at least, its far more than just a benchmark score. However it is pretty sweet telling my iphone rocking coworkers to eat my ghz

jok3sta said:
Maybe its just me but I feel like overclocking our phones is unnecessary. It seems like its just for boostin benchmark scores and it doesn't really affect real world performance. For me I used setcpu and it makes the phone slower and laggy when on conservative. Is that just setcpu not playing nice with my phone?
Tapatalkin it from my Epic 4G
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Well first it depends completely on your phone, all are different in terms of what they can handle, so each individual phone will respond differently to overclocking/undervolting. I can personally run 1.2, 1.3, and the 1.6 completely fine, while a lot of people can't run any of these. In terms of performance, it does make a difference with animation speeds, fps on games such as pocket legends or angry birds, and overall lagginess. But again, this is dependant on your phone.
Sent from my Xtremely Syndicated and Emotionless Epic 4G

I flashed the Xtreme kernel today but for some reason, I'm not getting the FPS unlock. Nenamark and Neocore are not getting the +70 I was expecting...

Eazail70x7 said:
I flashed the Xtreme kernel today but for some reason, I'm not getting the FPS unlock. Nenamark and Neocore are not getting the +70 I was expecting...
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Are you running v1.2.0? If so, the fps cap is not fixed on this version because Devin removed the 1.6ghz step which allows the framerate to be raised. It works on some phones, but not all which is why he removed it.
Sent from my Xtremely Syndicated and Emotionless Epic 4G

That explains it

The same argument comes up every once in a while concerning PC overclocking. I admit the phone overclocking has yet less benefits and even more downsides, but oh well, it's still super neato.

AndrewZorn said:
The same argument comes up every once in a while concerning PC overclocking. I admit the phone overclocking has yet less benefits and even more downsides, but oh well, it's still super neato.
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Exactly, you have to compare this to pc overclocking because it is the same exact thing. Two processors of the same make and model will overclock differently no matter what, it depends entirely on the die. Correct, the benefits are less noticeable, but it still makes a difference.

thomasskull666 said:
Exactly, you have to compare this to pc overclocking because it is the same exact thing. Two processors of the same make and model will overclock differently no matter what, it depends entirely on the die. Correct, the benefits are less noticeable, but it still makes a difference.
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There is a notable difference with stock 1ghz and a 1.2ghz. 1.2 - 1.3 isn't worth it in real world that's bragging rights
Sent from my SPH-D700 using XDA App

Hey guys, can you use z4 root on this phone? All i want is to remove is the bloat and undervolt it for my battery.. Any ideas of this works?

Why don't you ask in the z4 root thread
Sent from my SPH-D700 using XDA App

Wtf there is a thread for everything here lmao.

Dj21o said:
Wtf there is a thread for everything here lmao.
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Yea and the search button helps to find it.
Sent from my SPH-D700 using XDA App

Dude I know lol. I have a rooted hero, but im sick of all the custom bs. I want to underclock and thats it!

Best Way to Improve Performance

So I am wondering what others opinions are of the roms and kernels available for the SF. Doesn't seem to be much of an improvement on Quadrant scores utilizing another rom or even stupidfast kernels.
Are we just kind of screwed a bit until 2.2? Is there a kernel that is overclocked?
TIA.

Quadrant scores are mostly meaningless, and 2.2 is unlikely to be revolutionary. The phone performs well on 2.1 - keep reading the forum and you'll get there.

In my opinion the biggest performance increases ive seen werent in any benchmarks but in dj05. it runs amazing. If u havent tried it i dont know whether you should or not. With the impending froyo release no one knows if they are actually going to release DJ05 or not. I think they should release it and then put froyo on top of that foundation if at all possible
Sent from my SCH-I800(tab) using ksizzle9's crazy kool ROM(bone stock with root) from within the XDA App

What do you feel about DJ that helped it out?
I finally stayed with just a Voodoo lag kernel. There certain operations on the phone I had gotten used to that were slow. The kernel with lag fix did show me noticeable improvement, more than just a higher I/O score in Quadrant.
I think the phone is fairly solid on 2.1 but needs a little help. Hopefully the Froyo upgrade really is around the corner but Im not holding my breath

jfigura said:
What do you feel about DJ that helped it out?
I finally stayed with just a Voodoo lag kernel. There certain operations on the phone I had gotten used to that were slow. The kernel with lag fix did show me noticeable improvement, more than just a higher I/O score in Quadrant.
I think the phone is fairly solid on 2.1 but needs a little help. Hopefully the Froyo upgrade really is around the corner but Im not holding my breath
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I'm running DJ05 deox, and the stock DJ05 kernel. I used Titanium Backup to remove all the bloatware, and I use ADW instead of TouchWiz crap. (I took TW off with Titanium Backup too). SetCPU to set max to 1ghz, and minimum to 400mhz. (NO PROFILES!!!) It runs just fine for me. Rather damn speedy actually!! I dont do the whole benchmark test business, doesn't really mean much IMO.

Yes benchmarks dont mean too much. But they are a good indication of overall performance in their specific areas that they test. As they fascinate test well in every area except i/o. But we already kne that. Im not sure what about DJ05 Made it feel so solid to me just overall improvement and actual working GPS
Sent from my SCH-I800 using XDA App

ksizzle9 said:
Yes benchmarks dont mean too much. But they are a good indication of overall performance in their specific areas that they test. As they fascinate test well in every area except i/o. But we already kne that. Im not sure what about DJ05 Made it feel so solid to me just overall improvement and actual working GPS
Sent from my SCH-I800 using XDA App
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Where did you get the dj05 update?
Sent from my SCH-I500 using XDA App

Ive only tried voodoo/lagfix
It made a significant difference on my phone. I reverted and restored all the factory stuff in anticipation of JD05 because I want to get it OTA when it drops.
I tried to get the leaked one in IRC but people just kept calling me n00b so I gave up.
I am hopeful that it will solve all my woes and usher in a new era of speed only previously dreamt about

Powell730 said:
Where did you get the dj05 update?
Sent from my SCH-I500 using XDA App
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its been discussed dozens of times where and how to get dj05

joe3681 said:
I'm running DJ05 deox, and the stock DJ05 kernel. I used Titanium Backup to remove all the bloatware, and I use ADW instead of TouchWiz crap. (I took TW off with Titanium Backup too). SetCPU to set max to 1ghz, and minimum to 400mhz. (NO PROFILES!!!) It runs just fine for me. Rather damn speedy actually!! I dont do the whole benchmark test business, doesn't really mean much IMO.
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ksizzle9 said:
Yes benchmarks dont mean too much. But they are a good indication of overall performance in their specific areas that they test. As they fascinate test well in every area except i/o. But we already kne that. Im not sure what about DJ05 Made it feel so solid to me just overall improvement and actual working GPS
Sent from my SCH-I800 using XDA App
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@Joe: same setup here (DJ05 deo, Stock Kernel and Rom, Frozen bloat in Titanium) without SetCPU. It's FAST. My GF and both my sons have EVOs running 2.2 and my Fascinate is just as fast (or faster)
@ksizzle: I agree, it's hard to quantify exactly what is so good about it. I think it's not what's there, but what's NOT there (lag) I think there are going to be plenty of happy n00bs when the OTA hits. This phone will be a screamer right out of the box!

NOsquid said:
Quadrant scores are mostly meaningless, and 2.2 is unlikely to be revolutionary.
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Actually, the real performance difference between 2.2. and 2.1 is very revolutionary, though I certainly agree with you about the irrelevance of Quadrant scores. The Java virtual machine, for example, executes code 450% -- that's not a typo -- faster, which directly impacts most apps.
And, 2.2's browser is also significantly faster than 2.1's -- and iOS4's, for that matter.
I like my Fascinate, and yes, I would consider it fast (especially running DJ05 with Geeknik's kernels) but like many others, I too see slowdowns sometimes that just shouldn't happen with the phone's hardware. Froyo isn't a magic pill, per se, but it should significantly reduce or eliminate those slowdowns (as it did on my old Droid 1, despite it's far-slower processor).
http://crave.cnet.co.uk/mobiles/and...r-vs-android-15-cupcake-speed-taste-49305763/
http://www.androidpolice.com/2010/0...-it-compared-to-2-1-oh-only-about-450-faster/
http://arstechnica.com/gadgets/news/2010/07/android-22-demolishes-ios4-in-javascript-benchmarks.ars

Actually, the real performance difference between 2.2. and 2.1 is very revolutionary, though I certainly agree with you about the irrelevance of Quadrant scores. The Java virtual machine, for example, executes code 450% in benchmarks -- that's not a typo -- faster, which do not directly impact most apps.
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Fixed that for ya. Don't let marketing hype get the best of ya.

Everything I've read states that the performance improvements between 2.1 and 2.2 have little effect on Hummingbird processors (which is what is in all Galaxy S phones), and the biggest performance gains are seen on Snapdragon processors. As far as performance goes, I'll believe it when I see it.

imnuts said:
Everything I've read states that the performance improvements between 2.1 and 2.2 have little effect on Hummingbird processors (which is what is in all Galaxy S phones), and the biggest performance gains are seen on Snapdragon processors. As far as performance goes, I'll believe it when I see it.
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This is because JIT was designed specifically around a Snapdragon processor.

What's the point of overclocking???

Ok I aint joking but seriously what is the point of overclocking a Desire z/G2. Unless I am running on a slow phone I don't see the point. Stock speed never lags and i haven't seen any difference between 1.5 ghz vs 800mhz.
The only time when 1.5ghz clock speed is useful is when i running quadrant and rubbing its scores infront of my friends face.
There is any areas where you can actually see the performance difference?

bluntly, if you dont see the point of it then you don't need it.
For others, sometimes you run alot of stuff in the background and still want to be able to have your main app perform at its best level.
There is also the minute tweaking of speed and snappiness of the interface. The idea of instant reaction when you open your message app, or your email, or anything.

bruceko86 said:
Ok I aint joking but seriously what is the point of overclocking a Desire z/G2. Unless I am running on a slow phone I don't see the point. Stock speed never lags and i haven't seen any difference between 1.5 ghz vs 800mhz.
The only time when 1.5ghz clock speed is useful is when i running quadrant and rubbing its scores infront of my friends face.
There is any areas where you can actually see the performance difference?
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Heavy multitasking
Sent from my HTC Vision using Tapatalk

flash video seems pretty laggy to me at 800...

http://lmgtfy.com/?q=overclocking
Sent from a Western Union telegram.

blackknightavalon said:
http://lmgtfy.com/?q=overclocking
Sent from a Western Union telegram.
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Best link ever! I hope i can remember it long enough to use it sometime.
Sent from my HTC Vision using XDA Premium App

blackknightavalon said:
http://lmgtfy.com/?q=overclocking
Sent from a Western Union telegram.
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Ya i know what overclocking is but I haven't found one instances where I needed it to run an app. G2 is already damn fast and it runs android with no lag but I really see no point until more demanding ver. of android come out.
I just wanted to see who overclocks their G2 everyday and for what purpose.

bruceko86 said:
Ya i know what overclocking is but I haven't found one instances where I needed it to run an app. G2 is already damn fast and it runs android with no lag but I really see no point until more demanding ver. of android come out.
I just wanted to see who overclocks their G2 everyday and for what purpose.
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Fair question IMHO.
I don't see the difference when overclocking, or rather I don't feel it. Software does make a difference, but not the extra 200-500Mhz. I do feel however the battery drain

It always makes me laugh when somebody asks a legitimate question and you get silly responses like the above 2. It's as if these people feel threatened and have to justify that they are more knowledgeable than the op. The facts of the matter are most of the tweaks, mods and alterations are wholly unnecessary in the real world.

If you don't feel like it makes it better then you don't have to use it. I use it because I feel it makes everything just a little snappier and more instant. If you don't notice a difference that's fine. It's probably trivial for me to notice the little hang ups but I can't help it.
Sent from my HTC Vision using XDA App

For me there's several reasons. For the most part, the reason for oc is because you can. But there are practical reasons as well. For example, with the stock ROM running at 800MHz, you're stuck with that. With an oc kernel and using SetCPU or built in clock settings in CM, you can adjust it as needed. Gonna play a game? Bump it up to 1GHz or so. Done with said game? Take it back down to 800MHz. But it's not all about oc. Sometimes there's a need to underclock. Getting low on battery and don't have a charger near by and need to squeeze another hour or two out of it? Maybe take it down to 768MHz or 600MHz (if you're running Pershoot's kernel).

Dungeon Defender:
800 mHz : not fun, laggy
1.5 gHz : fun, graphic are more smooth

Reasons for using over clocking:
Because I can
Because sometimes I do notice the difference in performance of the UI and some applications (wait for Sense 3.0 etc...)
Because I also use it to underclock.
Like everything else, a lot of it is perception. My wife cannot see any difference between our normal cable channels and the HD ones. I can (or am I just trying to convince myself that I can?). Oh well.

Finally some practical and helpful responses, showing an understanding of the need for information from some people.

here's my experience when it comes to overclocking. keep in mind that, like with your computer, it does vary from user to user... so I'm making these statements from MY experience, not making blanket statements regarding all of our devices:
- if you run multiple homescreens with multiple widgets and ui "smoothness," not just aesthetically, but performance-wise as well, is of concern, mild overclocking becomes necessary.
- if you have several apps running at any given time (in background or foreground) and ui smoothness, same definition as above, is of concern, mild overclocking becomes necessary.
- if you run any iteration of a sense rom in any configuration and ui smoothness is of concern, mild overclocking becomes necessary.
- if you run PSX/N64 emulators and you don't want audio distortion or general lagginess, more aggressive (in my case, 1209 is a safe speed for maximizing performance without having a drastic effect on battery life) overclocking becomes necessary.
on AOSP builds, especially gingerbread-based, I don't think there is a necessity for more processing power than what we get from the factory if you're running a relatively slim setup and aren't using something like a PSX/N64 emulator regularly.

I run mine at 1ghz, but I did use 1.2ghz before. I do notice a slight performance difference. Overall tho I don't notice it much. I notice it more when I'm doing multiple things.
Nonsense!

OneGoodKnock said:
Finally some practical and helpful responses, showing an understanding of the need for information from some people.
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For all that you're talking, you have yet to provide anything of value to this conversation while you're sitting up there berating those other 2 posters.
Think about it.
Sent from my Desire Z via XDA App

I run 1.1 because it is noticably faster. Everything opens faster and works smoother. My wife has a stock G2 and when I grab it to look something up on the web or to use maps when we're out, I instantly notice how mucher slower hers is.
Works for me so I use it.

I notice a definite performance boost on mine, but it also depends on which kernel/ROM you use. I was running meXroid for a few days and found that it got extremely laggy even overclocked with Flippy's kernel built in (1.9Ghz), plus my battery was dying faster than a Chuck Norris joke. PyroMod has always been reliable for me and I flashed back to 2.0 earlier and it's just as reliable and power-saving as ever.

mputtr said:
For all that you're talking, you have yet to provide anything of value to this conversation while you're sitting up there berating those other 2 posters.
Think about it.
Sent from my Desire Z via XDA App
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Thanks for that.

Quadrant Standard Numbers!

I'm wondering what peoples quadrant standard numbers are. Please post your number and what rom your running.
Mines 2305 and I'm running CM 7
Sent from my HTC Glacier using xda premium

steven1193 said:
I'm wondering what peoples quadrant standard numbers are. Please post your number and what rom your running.
Mines 2305 and I'm running CM 7
Sent from my HTC Glacier using xda premium
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Quadrant is a poor representation of how well a ROM really works. I've ran Cyanogen for years and can easily hit 3k plus. How ever i feel that OSs like VU are just as smooth and snappy at closing and opening apps. But that will pull 2.3k - 2.6k, maybe lower.
no hard feelings but quadrant isn't very popular around XDA due to how easily hackable, and how inaccurate it is. Neocore, and MFlop are more respected, but not by much.

neidlinger said:
Quadrant is a poor representation of how well a ROM really works. I've ran Cyanogen for years and can easily hit 3k plus. How ever i feel that OSs like VU are just as smooth and snappy at closing and opening apps. But that will pull 2.3k - 2.6k, maybe lower.
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Apart from the ROM or kernel the score on any benchmark will also depend a lot on what else is going on on the phone. How many widgets are running? How many apps are running in the background? Is the CPU overclocked? ... Unless you switch basically everything off, benchmark scores are pretty worthless and comparing them with others does not make a lot of sense.

There is already a thread for this