I recently installed a new kernel on my phone, but it was one of a number of variants of the same kernel, some with SVS others with HAVS, some with CFS and some with BFS and lastly with and without call recording.
Is there a shell command I can run to find out which CPU scheduler version I installed as I remember it was HAVSand no call recording but I cannot remember if it was CFS or BFS?
many thanks
If the clue is not in the name of the kernel, not really
rootSU said:
If the clue is not in the name of the kernel, not really
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Guess I'll have to re-flash it and take note of which one I am using then.
Yeah if it doesnt say in about phone or system/lib/modules, I don't think you can tell.
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Doesn't antutu cpu tuner support changing io scheduler?
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erklat said:
Doesn't antutu cpu tuner support changing io scheduler?
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Apparently. My cfs kernel has the option for noop, deadline, bfq or cfq for io. Still doesn't help identify cfs or bfs process scheduler though
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Related
Could anyone tell me how I could change the i/o scheduler on barn's chopsuey v0.9.1 kernel, aside from using no-frills (it always reverts min and max clock speeds to default over time, along with the governor to on-demand)? Thanks in advance for the input.
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Any input?
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pmacevad said:
Any input?
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I use "Voltage Control" app from market.. I'm on GS2, but i'm pretty sure it works on Evo too.
Just try it out
Hello, i downloaded no frills cpu and i noticed that you can choose a scheduler. Arco's kernel supports noop and bfq. Anyone knows which would be best for performance on our phone?
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Give this post a read, it should help: (Can't really comment on which one to use because I have never experimented with this)
http://forum.xda-developers.com/showthread.php?t=1242323
I'm running Cyanogen 7.2 and use ILWT 1.8 as the kernel. No matter what I do, I never see the voltage tab in SetCPU. Any help?
hawtcakes said:
I'm running Cyanogen 7.2 and use ILWT 1.8 as the kernel. No matter what I do, I never see the voltage tab in SetCPU. Any help?
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Undervolting happens in the kernel, not an app. You need to install an undervolted kernel (such as Pershoot's). Also, CM7 has a performance setting so there's no need to use SetCPU, just set your max and min speeds in the performance settings of CM7 and get rid of SetCPU (it's polling has proven to be a battery drain).
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OriginalGabriel said:
Undervolting happens in the kernel, not an app. You need to install an undervolted kernel (such as Pershoot's). Also, CM7 has a performance setting so there's no need to use SetCPU, just set your max and min speeds in the performance settings of CM7 and get rid of SetCPU (it's polling has proven to be a battery drain).
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The kernel specifically states in its changelog that it supports changing voltages:
"Exposed VDD levels to userspace, so that voltages for all frequencies can be modded at any time"
hawtcakes said:
The kernel specifically states in its changelog that it supports changing voltages:
"Exposed VDD levels to userspace, so that voltages for all frequencies can be modded at any time"
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Sorry, that must be a new feature in 7.2. Check in CM Settings under the performance tab.
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The ILWT kernel is fine for undervoltung. However, you should not use SetCPU and you also won't find any options for undervolting in a CM7 settings dialog. I'd recommend using OC/UV Beater for undervolting. I am also using it for undervolting on the latest ILWT kernel.
- mcsmart
mcsmart said:
The ILWT kernel is fine for undervoltung. However, you should not use SetCPU and you also won't find any options for undervolting in a CM7 settings dialog. I'd recommend using OC/UV Beater for undervolting. I am also using it for undervolting on the latest ILWT kernel.
- mcsmart
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I'll try it out, thanks.
mcsmart said:
The ILWT kernel is fine for undervoltung. However, you should not use SetCPU and you also won't find any options for undervolting in a CM7 settings dialog. I'd recommend using OC/UV Beater for undervolting. I am also using it for undervolting on the latest ILWT kernel.
- mcsmart
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I prefer SetCPU for a more detailed automatic profile rather than just simply 'battery low'. But I don't do the voltage settings in SetCPU either just the profiles, for the voltage settings I set them in a userinit.sh in /data/local/ (it's provided as undervolt.sh as a reference by the rom creator) and reboot so it applies it to the vdd_levels file.
I have changed kernels, governors, and io schedulers so many times that I no longer remember what the stock settings are. Can someone who hasn't changed kernels nor modified these tell me what the stock settings are?
Thanks.
I believe it's ondemand and cfq (maybe noop)
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I'm pretty sure it's ondemand and noop. Perrtttyyyyy sure. Have been wrong though
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Ondemand and cfq.
i don't game at all, i just want the device to be snappy with my constant switching between facebook, viber, whatsapp...etc
which governor should i use? and should be the min, max CPU speed? i can go up to 1804Mhz but i prefer not to overclock if possible
omari79910 said:
i don't game at all, i just want the device to be snappy with my constant switching between facebook, viber, whatsapp...etc
which governor should i use? and should be the min, max CPU speed? i can go up to 1804Mhz but i prefer not to overclock if possible
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Min 245
Max 1401
Lulzactive/Smartassv2
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omari79910 said:
i don't game at all, i just want the device to be snappy with my constant switching between facebook, viber, whatsapp...etc
which governor should i use? and should be the min, max CPU speed? i can go up to 1804Mhz but i prefer not to overclock if possible
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Click to collapse
I personally recommend SIO governor, it's good enough for me or maybe if you're on CM10.1 you could try the FIOPS or BFS governor to from Hurtsky 3.4.xx version one. Cause it could even handle switching from whatsapp and light games to.
Could try which one suit you better..
s3alon said:
I personally recommend SIO governor, it's good enough for me or maybe if you're on CM10.1 you could try the FIOPS or BFS governor to from Hurtsky 3.4.xx version one. Cause it could even handle switching from whatsapp and light games to.
Could try which one suit you better..
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It was i/o scheduler.
Sio and fiops= i/o scheduler
Bfs=kernel scheduler
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eryzerz said:
It was i/o scheduler.
Sio and fiops= i/o scheduler
Bfs=kernel scheduler
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Owh..
sorry..
my bad..
so basicly what the different between i/o scheduler and kernel scheduler..
i'm still new at this thing
No problem sir? See here http://forum.xda-developers.com/showthread.php?t=1369817 and there are two scheduler of kernel CFS( here) and BFS( here )
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eryzerz said:
No problem sir? See here http://forum.xda-developers.com/showthread.php?t=1369817 and there are two scheduler of kernel CFS( here) and BFS( here )
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Thanks for the help sir..