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http://hardware.slashdot.org/story/09/08/25/157209/Why-Is-Linux-Notebook-Battery-Life-Still-Poor?from=rss

  • "It is no use setting sleep mode on the HDD if you leave Syslog running." - how much does this apply for SSDs?

http://samwel.tk/laptop_mode/ - how does this relate ot out of the box stuff?

  • Do you leave your battery plugged into the notebook when you have the notebook plugged into the wall? enjoy dramatically shortened battery life because of the heat killing your battery.


  • our web browser (e.g. Firefox) should be set to use browser.disk.cache.parent_dir=/tmp in about:config (mount /tmp as tmpfs). Really anything creating or writing files periodically should write them to tmpfs. Also, you might want to just make a symbolic link from ~/.mozilla/firefox/[profile]/Cache -> /tmp.
  • Eliminate ALL logging - it will wake up the hard disks every time a message is logged, unless you log to tmpfs.
  • Tweak the kernel to enable dynamic ticks (i.e. a 'tickless' system)
  • Really look through your ~/.xyz files to see which of them contain logs and caches. Redirect those to /tmp using a symbolic link.
  • Plain old Debian with Gnome or KDE (or Xfce if composited desktop and nice transparency is required) will fare much better than Ubuntu every time, will have better performance all around and has the added benefit of negating the need to ever visit the truly dire Ubuntu Forums. (you said it brother)


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Linux battery optimization


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Lata Pada is a Canadian choreographer and Bharatanatyam dancer of Indian descent. Pada is the Founder and Artistic Director of Sampradaya Dance Creations, a dance Company that performs South Asian dance. She is also the Founder and Director of Sampradaya Dance Academy, a leading professional dance training institution that is the only South Asian dance school in North America affiliated with the prestigious, UK-based Imperial Society for Teachers of Dancing.Pada founded the dance company in 1990 because she wanted to showcase Bharatantyam dance as an art form throughout the world.

Pada, who attended Elphinstone College in Mumbai, trained under the gurus Kalaimamani Kalyanasundaram and Padmabhushan Kalanidhi Narayanan.Pada lives in Mississauga, near Toronto. Pada married geologist Vishnu Pada when she was 17 years old.

In 1985 Lata Pada and her family decided to take an extended vacation to India. On June 23 of that year Vishnu Pada and daughters Arti and Brinda died in the bombing of Air India Flight 182. Lata Pada was not aboard since she left on an earlier date to tour India for Bharatanatyam recitals in Bangalore and across India; Lata was in Mumbai rehearsing for her tour, while her husband and daughters stayed behind in Sudbury, Ontario because Brinda was graduating from high school; afterwards the three flew on Air India 182. Lata Pada became a spokesperson for the families of the victims. After the crash she created the dance piece "Revealed By Fire" in remembrance of the incident. Pada received a master's degree in fine arts from York University in 1997.

Pada married Hari Venkatacharya in September, 2000. Venkatacharya is an entrepreneur and was Managing Director of Nytric Business Partners and is the Immediate Past President of TiE Toronto. He also serves on the Boards of the Ontario Science Centre and Fields Institute for Research in Mathematical Sciences. They both met while founding the South Asian advisory committee at the Royal Ontario Museum in 1995, where they raised over $3 million Canadian dollars for Canada's first permanent South Asian Gallery.

In December 2008, she was made a Member of the Order of Canada for her contributions to the development of Bharatanatyam as a choreographer, teacher, dancer and artistic director, as well as for her commitment and support of the Indian community in Canada. Lata was also recently appointed as Adjunct Professor in the Graduate Faculty of Dance, York University, Toronto.


This article based on content from http://www.wikipedia.org. Original version: http://en.wikipedia.org/wiki/Lata_Pada