The 815 kernals are compatable with 817? Im just not finding any kernals for either. I love this tablet, got it rooted and minor tweaks with fauxclock. Turned zram off, and a couple other small tweaks. It would be nice to be able to get viper working.
Does anyone know where to find kernals for 817? Do they keep LTE? I would love to get exposed working too.
Thanks
Sent from my SM-T817T using Tapatalk
Not sure the thinking behind turning Zram off. Compressed ram is faster than swap on flash memory, so not sure what you expect to gain there.
Zram is used to improve the IO on low ram devices.
Related
Hi guys,
I compiled compcache and lzo compression modules for 2.03.405.3. For those of you that don't know what compcache is... it's a compressed block device in RAM which acts as swap disk. Because it is compressed it basically extends you RAM to some extent. It is also used in kyosa's CM6 ROM.
You can test it by doing:
Code:
insmod lzo_compress.ko
insmod lzo_decompress.ko
insmod ramzswap.ko disksize_kb=20480
swapon /dev/block/ramzswap0
...this loads needed kernel modules, makes/initializes one device with size of 20 MB and makes swap space on it.
Please feel free to test and report back.
Really really interesting..
Do you have found improvements? I'll try it asap!
Ps when do you take the source of compcache? Thanks!
Sent from my HTC Legend using XDA App
good job on bringing it out!
although after downloading, installing, and running it, did about 10 benchmarks (5 with compcache, 5 without) i kept losing performance with compcache...
so i decided to run it on my phone for awhile, to see after effects with it running for a little while, i noticed that my rom started graphically being choppy and slower after time...
quite interesting.........
Quanny2000 said:
although after downloading, installing, and running it, did about 10 benchmarks (5 with compcache, 5 without) i kept losing performance with compcache...
Click to expand...
Click to collapse
Yes, compcache has its own drawbacks... especially on slower processors - it can potentially drain more battery juice because of constant compressing/decompressing. And yes, it slows down over time that's for sure.
How big is your compcache swap?
BlaY0 said:
Yes, compcache has its own drawbacks... especially on slower processors - it can potentially drain more battery juice because of constant compressing/decompressing. And yes, it slows down over time that's for sure.
How big is your compcache swap?
Click to expand...
Click to collapse
20mb as stated in the original post...
Sent from my Legend using XDA App
Compcache is not a good idea on most phones.
It confuses the lowmemorykiller, because lowmemorykiller checks how much space is available in the RAM, it doesn't check how much is available in total due to compcache.
Also, Legends have a quite decent amount of RAM, 320 MB, which fits the CPU performance perfectly.
Just my $0.02.
Well, low memory killer is not an app but kernel module/driver. And it has bunch of parameters that can be set via /sys/module/lowmemorykiller/parameters in conjunction with settings in /proc/sys/vm. If you run compcache, I suspect that you can and know how to tune those parameters so your kernel won't explode...
It is so much good idea as also bad idea. It depends on how are you using it and why. Soccer ball can also be a deadly weapon, but that doesn't mean we stop playing soccer with it
Thanks for all the info on here that I used to root my NC and sideload apps. I was wondering since we have seen that an OC is possible during the root process, what is needed to make an overclocked kernel for the NC?
The stock kernel isn't going to allow it, but it should be possible on custom kernels.
Then again I may be completely talking out of my ass.
Well we were waiting on the source but thats been released sp now we need someone to build a custom kernel ...and ofcourse i can and probably am talking out of my ass but i think that sounds right
Sent from my SPH-D700 using XDA App
See this post. I tried it one more time and I think the touch sensitivity is just my imagination. As far as performance is concerned, it doesn't seem to make any appreciable difference.
The 3630 and 3621 voltages in the power profiles probably need to be mixed and matched since the normal 3621 profile is at a lower voltage at the same speeds as the 3630.
As the thread title, when will we see kernel modules to allow overclocking/undervolting to locked bootloader devices? Im surprised I've not seen any mention yet!
I'm working on something similar to the Milestone overclocking module that could be loaded at boot time. Currently it is possible to overclock the OMAP4430 present in our phone but it doesn't persist through a reboot and to be honest, is not very "noob-friendly" or robust as it involves calling kernel functions in userspace and requires the throttling to be set to "performance", basically running at full-bore. I just haven't had time to devote a full day to it yet but will share my findings as soon as I can.
Sent from my XT860 using xda premium
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I thought I'd replied to this! Damn Opera Mini I did ask about VSEL settings? Would that be a possibility? The major bonus of clock tweaking/voltage tweaking would surely come in the form of battery life since at 1ghz dual core the power is probably meaty enough.
best battery kernel for cm7 2.0?
hi guys i wanted to know if anyone could suggest a good kernel for cm7 which has worked to save battery but still maintain a good performance. i am currently using stock cm7 kernel.
thanks
I've tried a few and settled on 2.6.38.8 Tiamat_N1-v4.1.0. Spent all afternoon screwing around on my phone and still at 70% charge. That is a bit better than what I've seen before.
I'm a novice but I've tried a few different kernels with my CM7.2 RC2 build and this has been the best so far. I have one of the N1 phones with really low in-call speaker volume, this kernel appears to boost the volume. I don't notice any distortion either. This kernel also suppose ext4 filesystems which I need for S2E. And finally.. I picked this over others because Bluetooth works and I had troubles earlier. Look for "Tiamat_N1-v4.1.0.zip"
Note that I am also running an updated radio (5.08) and the blackrose HBOOT. Sorry but I do not recall if those are prerequisites for this kernel.
I used kernels from pershoot, IR, and Tiamat. All very good for battery.
Don't forget to lower your min CPU as much as your phone can handle. Mine can go as low as 128 MHz with no wake issues. I usually leave at 998 Max. I also use SmartassV2 governor.
Sent from my Nexus One using XDA
tiamat is a beasttt of a kernel tbh you should give it a whirl
Sent from my Nexus One using XDA
CrustyMcLovin said:
I've tried a few and settled on 2.6.38.8 Tiamat_N1-v4.1.0. Spent all afternoon screwing around on my phone and still at 70% charge. That is a bit better than what I've seen before.
I'm a novice but I've tried a few different kernels with my CM7.2 RC2 build and this has been the best so far. I have one of the N1 phones with really low in-call speaker volume, this kernel appears to boost the volume. I don't notice any distortion either. This kernel also suppose ext4 filesystems which I need for S2E. And finally.. I picked this over others because Bluetooth works and I had troubles earlier. Look for "Tiamat_N1-v4.1.0.zip"
Note that I am also running an updated radio (5.08) and the blackrose HBOOT. Sorry but I do not recall if those are prerequisites for this kernel.
Click to expand...
Click to collapse
Been looking for this file but links are down atm. Does anyone have a working link?
Verrocio said:
Been looking for this file but links are down atm. Does anyone have a working link?
Click to expand...
Click to collapse
Wow so long ago.. I'm searching my HDD for it, I might still have those files.
edit: AND nope, sorry. Good luck.
Hey all!
I have a few questions I think you may be able to help me out with.
Most of these are about speed of stability.
1) Does anyone here swear by a non-stock kernel? I'm on the newest AOKP build, and the kernel seems quite adequate, but I'm very new to the touchpad, so I was wondering if there was an accepted "best kernel" like there is on some devices.
2) Does anyone mess with the governor or scheduler?
3) Is there any way to make gestures? What I reallllly want to do is be able to two finger swipe and have that be interpreted in any application as me hitting the "back" button.
Thanks so much for your time!
Any word on this?
Sent from my aokp_tenderloin using XDA
Stock kernel is more than adequate. I run my pad @ 1782 with performance governor and use CPUTuner for dual core support. Ondemand is adequate for most, but I like super snappy. No gestures that I know of. CM7 did support custom gestures, but not in ICS.
I've been wondering about anyone's experience with kernels other than stock. I've searched rootzwiki and I could only find 2 alternative kernels, but both haven't been updated in quite some time (one in early april and the other in feb). Lately, I've switched my scheduler to the noop scheduler. Honestly, I haven't been able to discern much of a performace difference. The only reason I switched to noop is I heard it is designed for optimum performance with devices using flash memory rather than traditional hard drives.