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Comment Choice (Score 1) 186

by marcas1 (#35911380) Attached to: Linux Kernel Suffering Power Management Regression?

Some of us need power for our computing clusters; some of us need battery capacity for their laptop
I didn't compile a kernel for a while,
but last time I lost myself in menu-config and I saw I could build Linux kernel for a high consuming datacenter or for my laptop
It is a legitimate choice to compile Linux kernel to enhance calculus or to save my battery on my laptop
is it really Linux kernel that increase power consuming or is main stream Ubuntu with Gnome Applets burning Watts for nothing ?

On my apple laptop I quit energy-vorous applications like Google Earth, and lower down contrast to get more left battery time. And it works
I would hate that the seismic cluster of my Institute get less cylcles but if power is a constraint (think about japan crisis) I know I could fix my Linux kernel to be more energy-saving. And I am quite confident I could get the better ratio.
On my laptop I've to choose the best distro. Who could help me?

   

Comment update to Karmic on P4 2.6Ghz (Score 1) 1231

by marcas1 (#29970224) Attached to: Some Early Adopters Stung By Ubuntu's Karmic Koala

I've done upgrade this week end. Hard time with a small partition on hard drive (4Gb) and troubles with the USB key (my CDROM is ooo) with 9.10 to boot (dynamic casper partition /cow on wrong hard drive ID)
My Medion 2.4Ghz with P4 laptop is now running karmic. Hibernate run succesfully after 2 reboots (???)
It seems that compiz is more stable with the radeon 9000 now.
The fresh install doesn't accept my exotic Wifi PCMCIA card more the before. But even ndiswrapper manual install failed on this.

It's not faster than before but more stable when swithing fast from desktop to another. So, it's not a bad update for old hardware (6 years old)
Upgrades

Some Early Adopters Stung By Ubuntu's Karmic Koala 1231

Posted by kdawson from the arrows-in-back dept.
Norsefire writes to mention a Register piece reporting that early adopters are having a tough time with Karmic Koala, Ubuntu's latest release. "Ubuntu 9.10 is causing outrage and frustration, with early adopters wishing they'd stuck with previous versions of the Linux distro. Blank and flickering screens, failure to recognize hard drives, defaulting to the old 2.6.28 Linux kernel, and failure to get encryption running are taking their toll, as early adopters turn to the web for answers and log fresh bug reports in Ubuntu forums." What has been your experience if you've moved to Karmic?
Operating Systems

Reducing Boot Time On a General Linux Distro 354

Posted by timothy from the replace-the-disembarculator dept.
Linzer writes "In this blog entry, Fred Crozat (head of Mandriva's engineering team in France) explains in great detail how his team has been detecting and getting rid of bottlenecks in the boot process, from the early stages to loading the desktop environment, thus decreasing overall boot time. An informative tour of the nuts and bolts of the boot process and how they can be tinkered with: initrd, initscripts, udev, modprobe calls. The basic tool they use for performance analysis is bootchart, which produces a map of process information and resource utilization during boot. The final trick: preloading desktop environment files while waiting for the user to type her password."

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