[Q] How to get this slab to move optimally - Gen8, Gen9, Gen10 Q&A, Help & Troubleshooting

I bought this slab for my kids and wanted to get the most of it, of course XDA is where I turn to in my time of need. So, I read all the tutorials and here is where I am at:
1. Rooted with Uruk 1.0
2. Set Comp Cache to 100Mib
3. Set Swap to 100
4. Removed buttons and installed button savior
It still feels sluggish, but definitely better than stock firmware. I realize this thing is not a Ferrari, but I feel it can be snappier. What other tweaks can I do to get maximum horsepower and not care about battery? I want this thing to run full throttle. What can you guys recommend?
Archos 70s

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A few thoughts
rezn said:
1. Rooted with Uruk 1.0
Click to expand...
Click to collapse
This is a good start
rezn said:
2. Set Comp Cache to 100Mib
3. Set Swap to 100
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Click to collapse
I think this is what's helping kill you...
Compcache is a chunk set aside from free system ram (we only have 256mb!!!), then compressed - not a very nice operating environment, but helps when theres more in memory than can be held, it'll ship the less used things to the comp - Honestly, I don't think you should go more than 15-25% of total system ram on this setting, you dont want to kill your fast, albiet small memory.
I think swap kinda sucks, even though I keep a small one on my system, but that's mainly because of the smallish spec we have to deal with... I usually dont keep this too big either - everything that gets shipped there by the system takes FOREVER to load. Maybe it works better mounted on a really fast sdcard, but I think it would be negligible.
My thoughts? Set compcache to 24-32mb and swap to 2x your compcache.
rezn said:
I realize this thing is not a Ferrari, but I feel it can be snappier. What other tweaks can I do to get maximum horsepower and not care about battery? I want this thing to run full throttle.
Click to expand...
Click to collapse
What you do with your cpu scaling has a major part to do with power, both horses and battery.
If you don't care about your battery life, set your power management to overdrive, set the cpugovernor to performance, and read up on this thread http://forum.xda-developers.com/showthread.php?t=1169625 , it will help you lock your cpu down after boot, so nothing non-SU can hijack your speeds.
Start there, and see how it runs

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Thanks wokker! You provided some great information and helped me understand those compcache and swap settings better. I am going to try everything and do your suggestions and then will let you know how it goes.

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Add'l recommendations
Some other tweaks you can try with a rooted Archos is the SuperCharger Script: http://forum.xda-developers.com/showthread.php?t=991276. I used Option 6 - Balanced. If you need to change your busybox version download Busybox from Stephen (Stericson). Busybox installer from jrummy16, as much as i prefer that, doesn't install correctly on my 70IT.
And SD Speed Increase from the market, based on the script from here: http://forum.xda-developers.com/showthread.php?t=1010807, to increase the cache size for SD Card reading. 2MB is the standard choice (By default the Archos only has 128kb allocated!)
Oh and turn off Live wallpapers, as nice as it looks it really bogs down the tablet!

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gersto said:
Some other tweaks you can try with a rooted Archos is the SuperCharger Script: http://forum.xda-developers.com/showthread.php?t=991276. I used Option 6 - Balanced. If you need to change your busybox version download Busybox from Stephen (Stericson). Busybox installer from jrummy16, as much as i prefer that, doesn't install correctly on my 70IT.
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Click to collapse
I've been using AutoKiller Memory Optimizer - and from what I read in the link above is that this SuperCharger script is pretty much the same - but what about the other tweaks AKMO allows, does the SC script change those settings too?
Honestly, I like AKMO (enough to donate even!), and have been using it for sometime on my G1 and A101 (with great success, it really helps optimize everything), but don't like the load time at boot to enact all the settings, so if there's a way to script the changes I want, I would rather that.
Anyone with a bit more linux/android knowledge care to help? (I only know enough to be dangerous!)

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Nope.
Nothing does what V6 SuperCharger does.
Not AKMO, Not AMM, not any minfree tweaker.
Because nothing actually fixes messed up OOM Groupings and Priorities.
As proof, nothing eliminates launcher redraws.
Except for V6.
As for the other tweaks, I'm including pretty much all the best tweaks that I can find with V8 SuperCharger - I want to implement a total system optimization.
For starters, see the following post for the 3G TurboCharger and Kick Ass Kernel Tweaks...
http://forum.xda-developers.com/showpost.php?p=15808025&postcount=208

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A taste of V8... you can grab 3G TurboCharger & Kick Ass Turbo Tweak Installers from here...
3G TurboCharger and Kick Ass Kernel Tweaks
You can modify the 3G script to add metalspring's additional build.prop entries

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zeppelinrox said:
For starters, see the following post for the 3G TurboCharger and Kick Ass Kernel Tweaks...
http://forum.xda-developers.com/showpost.php?p=15808025&postcount=208
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Click to collapse
Are these going to work alright on our systems?
V6 seems to be doing alright, but I had to heavily modify the KickAssKernel script to work on my system, and even then, I could only get the kernel tweaks to take, none of the cfq io scheduler tweaks, normalized sleeper, or noatime are going, but I'm not familiar enough with linux commands to really control the situation.
This is how I got the kernel tweaks to run:
Code:
sysctl -w vm.swappiness=0
sysctl -w vm.oom_kill_allocating_task=0
sysctl -w vm.panic_on_oom=0
sysctl -w vm.dirty_background_ratio=60
sysctl -w vm.dirty_ratio=95
sysctl -w vm.min_free_kbytes=4096
sysctl -w vm.vfs_cache_pressure=10
sysctl -w kernel.panic=0
sysctl -w kernel.panic_on_oops=1
sysctl -w kernel.msgmni=2048
sysctl -w kernel.msgmax=64000
sysctl -w kernel.shmmax=268435456
sysctl -w kernel.sem='500 512000 64 2048'
sysctl -w kernel.sched_features=24189
sysctl -w kernel.hung_task_timeout_secs=0
sysctl -w kernel.sched_latency_ns=18000000
sysctl -w kernel.sched_min_granularity_ns=1500000
sysctl -w kernel.sched_wakeup_granularity_ns=3000000
sysctl -w kernel.sched_compat_yield=1
sysctl -w kernel.sched_shares_ratelimit=256000
sysctl -w kernel.sched_child_runs_first=0
sysctl -w kernel.threads-max=5000
sysctl -w net.core.wmem_max=524288
sysctl -w net.core.rmem_max=524288
sysctl -w net.ipv4.tcp_tw_recycle=1
sysctl -w net.ipv4.tcp_rmem='6144 87380 524288'
sysctl -w net.ipv4.tcp_wmem='6144 87380 524288'
sysctl -w vm.dirty_writeback_centisecs=2000
sysctl -w vm.dirty_expire_centisecs=1000
The KickAssKernel would return ALOT of errors, until I cleaned it up to the above, then it all took just fine.
I would really like to get the other tweaks going... any suggestions?... Seems these systems with the Uruk CFW dont play exactly the same as others...
EDIT: I have tried the KickAssKernel Installer, the kernel tweaks take, but everything else (cfq, sleeper, etc.) errors out with a syntax error: unexpected line - I have tried to clean the cfq code in it's simplest form to:
Code:
for i in $(ls -d /sys/block/*)
do
echo "cfq" > $i/queue/scheduler
done
Still returns a syntax error...

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Question
Does anyone know if JIT vm is enabled in UrukDroid?

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wokker666 said:
EDIT: I have tried the KickAssKernel Installer, the kernel tweaks take, but everything else (cfq, sleeper, etc.) errors out with a syntax error: unexpected line - I have tried to clean the cfq code in it's simplest form to:
Code:
for i in $(ls -d /sys/block/*)
do
echo "cfq" > $i/queue/scheduler
done
Still returns a syntax error...
Click to expand...
Click to collapse
It may be a busybox issue. What version are you running?

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zeppelinrox said:
It may be a busybox issue. What version are you running?
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Click to collapse
I'm running 1.17.2 - Comes stock with UrukDroid

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wokker666 said:
Code:
for i in $(ls -d /sys/block/*)
do
echo "cfq" > $i/queue/scheduler
done
Still returns a syntax error...
Click to expand...
Click to collapse
Try...
Code:
for i in /sys/block/*/queue/scheduler
do
echo noop > $i
done
To see what schedulers that you have available type this in terminal:
cat /sys/block/*/queue/scheduler
You'll see a bunch of lines that look like this "noop anticipatory deadline [cfq]"
The one in the brackets is what is being used, the others are available options.
For our phones, noop or deadline are preferable.

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zeppelinrox said:
Try...
Code:
for i in /sys/block/*/queue/scheduler
do
echo noop > $i
done
To see what schedulers that you have available type this in terminal:
cat /sys/block/*/queue/scheduler
You'll see a bunch of lines that look like this "noop anticipatory deadline [cfq]"
The one in the brackets is what is being used, the others are available options.
For our phones, noop or deadline are preferable.
Click to expand...
Click to collapse
That worked, got my scheduler running noop now, it was running anticipatory - after reading up on the different schedulers, dosen't seem efficient for flash memory that's for sure!
Making this unit better one tweak at a time!

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Awesome... I'm really glad it worked!
It's tough when something works on one configuration but it's a syntax error on another.
Looks like I should tweak the tweak script

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Updated the 3G and Kernel scripts...
Included the above adjustment as well as a couple of other things...
Oh yeah... V6 SuperCharger is on XDA's front page!
Link to article: http://www.xda-developers.com/android/make-the-best-out-of-your-android-device-with-v6-supercharger/

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zeppelinrox said:
Oh yeah... V6 SuperCharger is on XDA's front page!
Link to article: http://www.xda-developers.com/android/make-the-best-out-of-your-android-device-with-v6-supercharger/
Click to expand...
Click to collapse
Well deserved i must say!
I'll have to try the 3G and kernel tweaks on my Eris and the Archos70....

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Thank you
I had to update the 2 scripts again... the kernel script wasn't doing the noop/io schedular stuff or noatime...
Sorry

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zeppelinrox said:
Thank you
I had to update the 2 scripts again... the kernel script wasn't doing the noop/io schedular stuff or noatime...
Sorry
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Click to collapse
Heh, I wouldn't worry about it, I'm pretty positive everyone here on xda, and everywhere else really appreciates your work, keep it up!!!
One thing I might suggest (if it's even possible), you may want to put some cpu governor settings and locks in your script, make a few different choices available.
I've really noticed a huge difference in performance ever since I reset the gov, and locked in the settings so nothing non-SU can hijack the values. (It may not be for your script though, so many different units out there with wildly different specs)
This is the gov / lock script I use: (thank you arpruss!)
Code:
cd /sys/devices/system/cpu/cpu0/cpufreq
echo interactive > scaling_governor
chmod 644 scaling_max_freq
echo 100000 > scaling_max_freq
chmod 444 scaling_max_freq
chmod 644 scaling_min_freq
echo 800000 > scaling_min_freq
chmod 444 scaling_min_freq
This has completely locked my cpu to progs that arent determined enough to use SU capability, i.e. Netflix (likes to clock you down when more is needed)
Reference thread: http://forum.xda-developers.com/showthread.php?t=1169625
You may also (again, if it's possible) want to leave *vm.swappiness=0* as a choice to the user - some like to use compcache and swap, and if the kernel tweak goes thru unchecked, the user will have their swap disabled and not even know it, and to boot, the system will start the swap services, reserve the space for them, and just never use them!

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I had thought about including overclocking related settings but decided against it as I'm pretty sure that no one set of tweaks would apply to all roms.
I was actually going to leave the swappiness out for the same reason - not all roms have swap. But I forgot to remove it

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zeppelinrox said:
I had thought about including overclocking related settings but decided against it as I'm pretty sure that no one set of tweaks would apply to all roms.
Click to expand...
Click to collapse
Not so much overclock settings, because alot of roms out there don't have OC kernels, but more like 'processing efficiency' settings.
Pretty much every rom has the basic governor settings, and most of those go a little beyond offering a couple more, but not all of them give a clear cut way to select what you want.
Maybe throw some basic settings in the script - ondemand, powersave, conservative, performance - and maybe even throw in interactive for those who can use it in their roms.
*Just the thoughts of a crazy, rambling perfomance junkie*