Tag Archives: performance increase

Things I do after installing Ubuntu

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1. Disable ipv6 and apparmor for speed up

add

ipv6.disable=1 apparmor=0

to linux command line in /etc/default/grub then run

update-grub

and reboot.

2. Disable wireless power saving on battery, because frankly 1 to 2 hundred milliseconds response time is too slow when you’re 20 feet from the access point.

Edit /usr/lib/pm-utils/power.d/wireless and replace any lines containing “power on” with “power off”. Not any update to pm-utils will overwrite this file and change the setting back.

3. Install Chromium as it is quite a bit faster and nicer to use than Firefox.

Remembering to keep Firefox around for the odd site that won’t work in Chromium e.g. some java based sites.

4. Add “noatime” and “commit=900″ to fstab.

Gives performance increase and saves SSDs by not writing to the journal all the time.

Top 5 tips to speed up a slow PC

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  1. Make sure you are only running one realtime anti-virus/spyware scanner.
  2. Remove viruses/spyware.
  3. Remove unnecessary bloat.
  4. Check and defrag the disk.
  5. Install extra memory.

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Improve response in Ubuntu Desktop

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I came across recently, as you do, an option to maximise the performance of my lowly OCZ Core V2 SSD in Ubuntu. Apparently the kernel goes to quite extreme lengths (in terms of using CPU cycles) to avoid doing seeks. With a “standard” hard drive this is desirable because the time it takes the head to move to the correct location is more costly. Seeking is irrelevant as far as an SSD is concerned and using extra CPU time only serves to reduce I/O performance. Happily there is an option to tell the kernel that you are using a non-rotational media for a specific drive designation i.e. sda, sdb, etc. and therefore maximise SSD performance.

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