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Replace firefox with something more light weight?
Replace firefox with something more light weight?
Looks like epiphany might save a little memory:
  USER      PID %CPU %MEM    VSZ  RSS TTY      STAT START  TIME COMMAND
  liveuser  3678  0.1  0.5  4804  1264 ?        S    11:08  0:00 /bin/sh /usr/lib/firefox-3.0.2/run-mozilla.sh /usr/lib/firefox-3.0.2/firefox
  liveuser  3695 31.5 18.5 162356 43436 ?        Sl  11:08  0:34 /usr/lib/firefox-3.0.2/firefox
versus
  USER      PID %CPU %MEM    VSZ  RSS TTY      STAT START  TIME COMMAND
  liveuser  3740 18.5 15.9 148828 37216 ?        Sl  11:11  0:10 epiphany


= Image Generation =
= Image Generation =

Revision as of 03:31, 15 October 2008

This page is intended to gather performance related feedback for running Fedora 10 Live images on the XO.

Service Run-level Changes

What system daemons are started that aren't needed? For example, bluetooth ... there is no bluetooth hardware on the XO.

GNOME Desktop Session Changes

Kernel tunables?

Packaging Changes

Replace firefox with something more light weight?

Looks like epiphany might save a little memory:

 USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
 liveuser  3678  0.1  0.5   4804  1264 ?        S    11:08   0:00 /bin/sh /usr/lib/firefox-3.0.2/run-mozilla.sh /usr/lib/firefox-3.0.2/firefox
 liveuser  3695 31.5 18.5 162356 43436 ?        Sl   11:08   0:34 /usr/lib/firefox-3.0.2/firefox

versus

 USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
 liveuser  3740 18.5 15.9 148828 37216 ?        Sl   11:11   0:10 epiphany

Image Generation

Overlay Storage

Using the --overlay-size-mb parameter to the livecd-iso-to-disk script is recommended for 2 reasons.

  1. Any changes to your live image are saved to the SD card (instead of memory). These changes will remain upon reboot.
  2. It improves performance because there ends up being less memory pressure.

A potential drawback might be that more writes are happening to your SD media, which may lower the life expectancy of the SD media.

Swap space?

If you need to add swap after booting your XO, I've been using the following commands:

 # mount /dev/live /mnt/live
 # dd if=/dev/zero of=/mnt/live/swap.img bs=1024 count=256000
 # mkswap /mnt/live/swap.img
 # swapon /mnt/live/swap.img