[Tutorial] ROMs & Sysctl.conf & other tweaks!

This is a discussion on [Tutorial] ROMs & Sysctl.conf & other tweaks! within the Droid X Hacks forums, part of the Droid X Development category; Originally Posted by Marius Well what do you know. Enabling sysctl.conf in liberty settings does not actually alter the conf file. After enabling and rebooting, ...


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  1. #21
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    Quote Originally Posted by Marius View Post
    Well what do you know. Enabling sysctl.conf in liberty settings does not actually alter the conf file. After enabling and rebooting, I checked /etc/sysctl.conf from terminal all the lines were commented out.

    2048/40/15/12 were what was in there commented out though. I'm going to modify the file manually.

    Sent from my DROIDX using Tapatalk
    So what are you saying here? Do you have the Sysctl Config App by JRummy16 installed as well? Are you saying that when you use the app that the app is not actually altering the .conf files?

    And always remember to read, read, read, and read some more!

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    Quote Originally Posted by Marius View Post
    Well what do you know. Enabling sysctl.conf in liberty settings does not actually alter the conf file. After enabling and rebooting, I checked /etc/sysctl.conf from terminal all the lines were commented out.

    2048/40/15/12 were what was in there commented out though. I'm going to modify the file manually.

    Sent from my DROIDX using Tapatalk
    If you are using Liberty you do actually have to enable sysctl support first. This will/should remove the commented out parts. I don't know for certain because I modified my sysctl manually before it was an option but that's how I understood it to work.

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    Quote Originally Posted by Inkarnit View Post
    If you are using Liberty you do actually have to enable sysctl support first. This will/should remove the commented out parts. I don't know for certain because I modified my sysctl manually before it was an option but that's how I understood it to work.

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    O ok, I see. I do have Sysctl Support enabled, a long with the app installed.

    How do I actually get to the file so I can see if the values really did change, and so I actually know how to change them manually.
    I don't have much experience with using the command line or ADB or whatever it is lol.

    And always remember to read, read, read, and read some more!

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    Quote Originally Posted by Inkarnit View Post
    If you are using Liberty you do actually have to enable sysctl support first. This will/should remove the commented out parts. I don't know for certain because I modified my sysctl manually before it was an option but that's how I understood it to work.

    Sent from my DROIDX using Droid X Forum App
    I found jrummys init script that uncomments and executes the sysctl settings at boot time, but the prob is that the numbers in the conf file aren't what I entered in in the liberty settings at all.

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    Marius, aka. Imoseyon
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    Quote Originally Posted by macpro88 View Post
    O ok, I see. I do have Sysctl Support enabled, a long with the app installed.

    How do I actually get to the file so I can see if the values really did change, and so I actually know how to change them manually.
    I don't have much experience with using the command line or ADB or whatever it is lol.
    Its in the /system/etc directory.

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    Im unable to adjust my screens brightness now for some reason when I click on it it seems to stay on the advancced setting. Does anyone know why it could be doing this? I have juice defender and thought it might be causing it but I don't see any settings for that there?

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    Quote Originally Posted by idontliketolose View Post
    Im unable to adjust my screens brightness now for some reason when I click on it it seems to stay on the advancced setting. Does anyone know why it could be doing this? I have juice defender and thought it might be causing it but I don't see any settings for that there?

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    Try stopping the service for juice defender and then changing the brightness.

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    No that didn't work.

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    Btw, here are the default unaltered vm settings of liberty. Vm. Swappiness of 60 surprises me. I don't think android uses swap.


    # sysctl -a | grep vm
    vm.overcommit_memory = 1
    vm.panic_on_oom = 0
    vm.oom_kill_allocating_task = 0
    vm.oom_dump_tasks = 0
    vm.overcommit_ratio = 50
    vm.page-cluster = 3
    vm.dirty_background_ratio = 5
    vm.dirty_background_bytes = 0
    vm.dirty_ratio = 20
    vm.dirty_bytes = 0
    vm.dirty_writeback_centisecs = 500
    vm.dirty_expire_centisecs = 200
    vm.nr_pdflush_threads = 0
    vm.swappiness = 60
    vm.lowmem_reserve_ratio = 32
    vm.drop_caches = 0
    vm.min_free_kbytes = 2845
    vm.min_free_order_shift = 4
    vm.percpu_pagelist_fraction = 0
    vm.max_map_count = 65530
    vm.laptop_mode = 0
    vm.block_dump = 0
    vm.vfs_cache_pressure = 100
    vm.mmap_min_addr = 4096
    vm.scan_unevictable_pages = 0

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    Sorry I posted this in the wrong place

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