Develop Bugs

Do kernels affect network speed?

I have noticed a HUGE drop in network speed since flashing a new kernel. I'm talking a drop from 1-1.3mb down to 300-500kb. What gives?
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Bump. Kind of interested in the answer myself.
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I'm not sure if its the kernel.. when I rooted my phone and changed rom, I indeed had double the speed I had stock. I asked this a few times around here and no one replied.. I notice with true static kernel I go into data roaming. Again Not sure. But when I had and will switch badlck to is snap 8.1 850. So I'd like to know this too..
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Make sure it's not something simple as testing at different times of day. Testing late at night or early morning and you'll always see fester speeds with less network traffic.

same here - the drop in speeds for me hasnt been as bad if i using a cm6 nightly but if i go back to sense rom the speeds are horrible

I've been continuing to test my speeds throughout the day, even on different servers. My download speed has struggled to reach 1.0mb on maybe one out of 10 times. The biggest problem I'm seeing is my upload speed. It seems to be VERY unstable. Usually the test will freeze and then when it ends my speed ends up being something like 50kb. I've been on Calkulins EViO 1.1 for a while but I've been doing quite a bit of kernel testing. Right now I'm on King's BFS #8. I think when I get some time later I'm going to do some actual tests. I also installed and backed up the new Fresh 3.2 with the newest HTC stock kernel so I'll probably give that a try as well.

If you are using Setcpu try putting it in performance mode at 998 MHz or higher and see if you get better speeds. I have been doing some testing as my house is in a week signal area. It turns out most, if not all of these kernels are undervolted. Good for battery life, but it seems to reduce the radio's sensitivity. At my house I lose signal whenever my speed drops to 245 MHz, which indicates to me that the radio is not getting enough voltage to lock the signal. I could be wrong, but it would be interesting to see what you guys get if you force it to not drop the voltage. I think most of the kernels keep the voltage stock at 998 MHz or higher.

speeds across kernels & set cpu settings
This isn't the most scientific comparison but i would like to know if others are finding similar results. (i am located in NYC and still trying to figure out why sprint still doesn't have the 4G network running here - I know its up in a few small pockets..)
I think all of these results are pretty sad IMO - with that being said there seems to be a boost in speed when using setcpu at the performance setting:
The first three were run on Fresh's Newest 3.2 release (Supersonic 3.28.651.1) and the rest on CM6 final
Wiped cache and dalvik between Kernel swaps -
Round 1:
Fresh's newest kernel w/ no setcpu - average speed of 666 kbps down
Fresh's newest kernel w/ setcpu on peformance (998) - 849 kbps down
Round 2:
netarchy-toastmod-4.1.8-cfs-bfq-fresh-compatible- no setcpu -615 kbps down
netarchy-toastmod-4.1.8-cfs-bfq-fresh-compatible- setcpu (119)-758 kbps down
Round 3:
KiNgxKernel-Evo-8-BFS318-2.6.32.15- no setcpu - 609 kbps down
KiNgxKernel-Evo-8-BFS318-2.6.32.15- setcpu (119) -730 kbps down
Round 4:
CM6 FINAL - stock kernel - no setcpu - 908 kbps down

MJStephens said:
I have noticed a HUGE drop in network speed since flashing a new kernel. I'm talking a drop from 1-1.3mb down to 300-500kb. What gives?
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I think the problem is just fluctuation in network speed. Also the other problem is the speedtest.net app! It is so freaking inaccurate yet everybody seems to like using it.....instead I recommend the xtremelabs.app in the market. I hear the website for speedtest.net is more accurate though. I have seen my network speeds flex from 300kb to 1.5 mb in my house.
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New Sprint OTA 3.28.651.1 - HUGE DIFFERENCE
I just went back to the stock New Sprint OTA 3.28.651.1 - that flipz released a few days ago:
http://forum.xda-developers.com/showthread.php?t=773444
and my speeds are now between 1.2 and 1.5 on 3G - as compared to 650 - 700 kbps on the custom roms and kernels... might be worth looking into for those who are having issues.

Quadrant standard question?

Is a 1767 good on a g2?

Also got an 1898 when I took off my live wallpaper

I hit about 2100 or so...depends on whats running
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You'll hear a million times from a million folks that Quadrant scored are meaningless. You can have a stellar score and a buggy ass ROM or an average score and a great smooth experience with your ROM. Just gotta use what works best for you and if that also means high Quad score cool. When I OC to 1.8, I get over 2500, but it sucks my battery like a filthy back alley hooker.
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Bahahaha "back alley hooker" that's a slice of fried gold.
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Gotcha, im running virtuous 1.0 with advanced kernel(virtuous as well) OC'd to 998mhz.

TJBunch1228 said:
You'll hear a million times from a million folks that Quadrant scored are meaningless. You can have a stellar score and a buggy ass ROM or an average score and a great smooth experience with your ROM. Just gotta use what works best for you and if that also means high Quad score cool. When I OC to 1.8, I get over 2500, but it sucks my battery like a filthy back alley hooker.
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my battery life isnt good in general, barely get's me half way through the day, and that's with following the other thread stating to delete the sense account and all.

So this is me at 1.8ghz a little while ago. Found out that if I run it set to "Performance" in SetCPU I get stellar speed, but as soon as my screen shuts off it won't come back on. Need to do a battery pull or hold down power for like 10 seconds to reboot. Eh, such is life.

@tjbunch
Here's my solution for that problem. In the setcpu profiles, make a profile for screen off and set the speeds to as low as possible. Like 245/245... ever since I did that I've never had that problem again. Hope it helps.
Edit: don't forget to set priority to the highest on that profile.
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Slower wifi speeds.

Does anyone else notice slower wifi speeds and higher ping when running the speed test app?
I'm paying for 20mbps but I'm getting 5mbps and 44ms ping.
Is it just me, or does everyone notice this?
My DX2 gets 24mbps and 9ms ping.
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Avelnan said:
Does anyone else notice slower wifi speeds and higher ping when running the speed test app?
I'm paying for 20mbps but I'm getting 5mbps and 44ms ping.
Is it just me, or does everyone notice this?
My DX2 gets 24mbps and 9ms ping.
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no problems... try and update your radio it might help....

Overclocked to 1.6ghz I can only pull about 15mbit. If I turn the clock down, the wifi speed goes down. This is a limitation of the hardware, not the network.
I have a 25mbit home internet connection. My other wifi devices (ie: netbook) pull the full 25mbit.

nimdae said:
Overclocked to 1.6ghz I can only pull about 15mbit. If I turn the clock down, the wifi speed goes down. This is a limitation of the hardware, not the network.
I have a 25mbit home internet connection. My other wifi devices (ie: netbook) pull the full 25mbit.
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I actually noticed that my friend's Sensation pulls about the same as I do on the same wifi network. But his g2x actually pulls more than what I am paying for, which is 20mbit, he gets about 25mbit... Which made me really jelly.
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Noticed something. If my friends g2x and my Dx2, and nimdae at a higher clock pull higher speeds, does this mean higher CPU output, better network speeds?
But then again his Sensation also pulls the same as I do and we're both unrooted and stock clocked.
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Avelnan said:
Noticed something. If my friends g2x and my Dx2, and nimdae at a higher clock pull higher speeds, does this mean higher CPU output, better network speeds?
But then again his Sensation also pulls the same as I do and we're both unrooted and stock clocked.
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The fact the speed increases with the higher clock means the phone is going as fast as it can possibly go given the resources it has. If you were limited to 5mbit, your phone would only be able to do 5mbit regardless of clock speed (unless you dump it really low, then it will be slower).
I looked up the G2x specs and it is running Tegra2, meaning it's a CortexA9 system. It doesn't surprise me that it can easily use the entire bandwidth available at just 20-25mbit. CortexA9, even in a single core configuration (why isn't anyone doing this?), is faster than CortexA8 and current Snapdragon platforms even at the same clock frequencies.
As for pulling higher than advertised speeds, this can happen due to a concept called burst, along with compression. My 25mbit connection can burst at 30+mbit (I've seen it hit 40mbit). Because the mobile app probably works with much smaller data sets, it could be possible to report burst speeds over streaming speeds.

[Q] overclock

hi guys i would like to overclock my desire to one of the maximums how can iget linpack scores at about 60. if you go in top devices in linpack people have 1804 mhz or 1600 hod do i overclock that much. what rom, what kernel.Are thosescores real.Thx

http://www.youtube.com/watch?v=m_mDTLphIVY

You can't overclock the desire anywhere near that. Why do you care about the scores anyway?
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yeah the score on linpack is important to me, because thats what the speed depends from.if you go in lipack top devices you may clearly see 1804 on the nr 1 score and 1600 on the last.but even if it cant go at high then which rom may go the highest. thats more what im asking for 1800 is just a example.

1190 on most kernels. Shouldn't be important as its not the same as real world speed. You have a lot to learn
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rootSU said:
1190 on most kernels. Shouldn't be important as its not the same as real world speed. You have a lot to learn
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Actually he doesn't. Obviously he done his part on researching and he knows what he wants. Linpack is a tool every Desire owner should have on his device and run it as often as possible. After all we all buy the most expensive graphics cards to run 3D mark all day long, not to play games or to bother ourselves with our needs, size of our screens and resolution we intend to play on.
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actually i know that linpack isnt all the realness of speed but its one of the most truthfull things to check the cpu.i mean quadrant is **** and i know about that.Do you know any kernel 1190 for reduxv2??

erklat said:
Actually he doesn't. Obviously he done his part on researching and he knows what he wants. Linpack is a tool every Desire owner should have on his device and run it as often as possible. After all we all buy the most expensive graphics cards to run 3D mark all day long, not to play games or to bother ourselves with our needs, size of our screens and resolution we intend to play on.
SwiftKeyed from my HTC Desire using XDA App.
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These linpack and quadrant benchmarks are not exactly synonymous with SANDRA though. These don't give a realistic perspective on how well a phone will run. The only use is to compare your device with one setup against your device with another set up. Trying to beat the devices of others' is futile.

salata1500 said:
actually i know that linpack isnt all the realness of speed but its one of the most truthfull things to check the cpu.i mean quadrant is **** and i know about that.Do you know any kernel 1190 for reduxv2??
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EVERY benchmark is ****. End of story.

rootSU said:
These linpack and quadrant benchmarks are not exactly synonymous with SANDRA though. These don't give a realistic perspective on how well a phone will run. The only use is to compare your device with one setup against your device with another set up. Trying to beat the devices of others' is futile.
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Wink wink
I'm doing the same thing as always, but this time I'm doing it in the gloves. Terepin here got it I see
SwiftKeyed from my HTC Desire using XDA App.

I shall put it down to being ill

guys your changing the subject.!

What subject? This thread was predestined to be doomed before you posted it.

bechmark scores doesn't show the real daily performance.
i guess a ordinary desire takes a score of 1300 from quadrant. (correct me if i am wrong)
miui x-part rom takes it to 2500-2600... does it effects daily use, absolutely not...
on the other hand overlocking is not necessary, in my pov. you make your device hotter, unstable etc. and more importantly you will drain your battery much faster. and we all know that desire's battery isn't great.
but who takes those score and why? i guess those kernels are specific for bechmarking and not for daily use. i clocked my desire 998mhz for normal use and even less when the screen is off...

Undervolting CPU - More battery...

Is it worth it?
How do I go about testing the stability of the phone ( I don't want to reduce clock speed )

If you want your phone to work perfectly without loosing speed it's not worth it ( change wouldn't be noticeable )

Fears said:
If you want your phone to work perfectly without loosing speed it's not worth it ( change wouldn't be noticeable )
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Does undervolting really lower performance? You're sure you're not thinking about under clocking?
Sent from my HTC One X using Tapatalk 2

ben-fisher-bro said:
Is it worth it?
How do I go about testing the stability of the phone ( I don't want to reduce clock speed )
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I predict a "my HOX isn't working right, I blame HTC" thread shortly after you try this.
But really, what are your expected gains from doing this?

Tingelholm said:
Does undervolting really lower performance? You're sure you're not thinking about under clocking?
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If you're not sure about what you are doing it won't lower performance it will probably result in a lot of crashing and error messages, I personally think it's not worth it for the amount of battery you could gain ( few minutes )

Fears said:
If you're not sure about what you are doing it won't lower performance it will probably result in a lot of crashing and error messages, I personally think it's not worth it for the amount of battery you could gain ( few minutes )
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Well, I have had it undervolted with -150mv in a week or something and I haven't experienced any errors and crashes. I don't have it for the battery, but for the temps.
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I've been under voting my s3 747m for over two weeks now, between 75 to 300mv lower, at 1.89 I'm running at 1200mv, although I'm only running it at 1.5.
To test it I use Stability Test app, on scaling for 3 hour runs, it will stress all frequencies.
If you find a crash you increase the voltage at that frequency, BUT, the best way to test it, instead of using scaling test, use the burn in one, but manually set your speed and let it stress test XX frequency for a long period, this Is where I found the most of my crashes.
This isn't an easy or a quick job, it'll require a good weekend of mucking around. I have all my speeds down to 5mv increments instead of the stock 25 the apps give you.
But so far, I don't get voltage related crashes, only the random KP caused by cm10 bugs.
If people are interested in the voltages for this phone I could post them
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I'm uv @ 1137 and oc @ 1.6 using arhd 9.1.0 faux 006u kernel and the phone is running better than ever
I use mhl hdmi with sixaxis and the battery used to die in a hour and it got really hot but now I played for a hour before work and it used 40% battery and it was warm but not overheating
But before u go playin around with things look into it all cores are different and behave different
This thread will tell u everything it even has a gragh on wot chips can do what
http://forum.xda-developers.com/showthread.php?t=1815466
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