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| ZRAM | |
| Type (use copy/paste): | |
| sudo apt-get purge zram-config | |
| Press Enter. Type your password when prompted; your password will remain entirely invisible, not even dots will show, this is normal. | |
| b. Reboot your computer. | |
| c. Now check whether the removal has succeeded, with the following terminal command: | |
| cat /proc/swaps | |
| Press Enter. | |
| If all has gone well, you should receive no report anymore about one or more /dev/zram "partitions". | |
| Reference : | |
| http://www.phoronix.com/scan.php?page=news_item&px=MTM1NjQ | |
| https://sites.google.com/site/easylinuxtipsproject/speed |
| 1. http://www.joeyconway.com/blog/2011/09/11/ubuntu-ssd-move-chrome-cache-to-ram/ | |
| 2. http://web.archive.org/web/20090227063418/http://www.ubuntu-eee.com/wiki/index.php5?title=How_to:_Reduce_Disk_Writes_to_Prolong_the_Life_of_your_Flash_Drive | |
| 3. http://askubuntu.com/questions/1400/how-do-i-optimize-the-os-for-ssds | |
| 4. http://stevehanov.ca/blog/index.php?id=48 |
| Installing TLP | |
| sudo pacman -S tlp tlp-rdw tp_smapi acpi_call acpid ethtool iw lsb-release smartmontools tp_smapi | |
| Reference : | |
| https://wiki.archlinux.org/index.php/TLP | |
| https://wiki.archlinux.org/index.php/Tp_smapi | |
| ------ | |
| i also found adding the following to my rc.local helped with a few powertop tunables (now they ALL read "good" every time!) | |
| sleep 1 | |
| # Power aware CPU scheduler | |
| echo 1 > /sys/devices/system/cpu/sched_mc_power_savings | |
| # Audio codec power management | |
| echo 1 > /sys/module/snd_hda_intel/parameters/power_save | |
| # VM writeback timeout | |
| echo 1500 > /proc/sys/vm/dirty_writeback_centisecs | |
| ---------- | |
| General Reference : | |
| http://www.williambrownstreet.net/blog/2011/11/battery-life-on-thinkpad-x220-i7-running-ubuntu-11-10/ | |
| http://abuseit.pl/Docs/HOWTO_Lenovo_X220_Linux_configuration.txt - Ubuntu | |
| http://www.thinkwiki.org/wiki/Category:X220 |
General
http://www.joshuagranick.com/blog/2012/04/27/increase-battery-life-in-linux/
http://www.spencerstirling.com/computergeek/powersaving.html
How to make PowerTOP changes persistant across suspend/reboot?
*http://app-framework-software.intel.com/ - JS Library for Mobile HTML5 App Development
Spining Down Hard Drive
http://www.larkinweb.co.uk/computing/spinning_down_hard_drives_in_linux.html
VM Writeback Timeout
*http://askubuntu.com/questions/184367/what-should-vm-writeback-timeout-be-set-to-for-a-laptop
rc.local
swapoff -a
mkdir /tmp/chrome
mkdir /tmp/firefox
mkdir /tmp/putrakopo
mount -t tmpfs -o size=256M,mode=0744 tmpfs /tmp/chrome/
chmod 777 /tmp/chrome/ -R
chmod 777 /tmp/firefox/ -R
chmod 777 /tmp/putrakopo/ -R
tlp bat
exit 0
/etc/fstab
'#Uncomment these after all server based applications installed - eg. apache
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0
tmpfs /var/tmp tmpfs defaults,noatime,mode=1777 0 0
tmpfs /var/log tmpfs defaults,noatime,mode=0755 0 0
tmpfs /var/log/apt tmpfs defaults,noatime 0 0
none /var/cache aufs dirs=/tmp:/var/cache=ro 0 0
Archlinux on X220I
http://www.jsravn.com/2013/06/26/thinkpad-x220-arch.html