You can not get that level of speed increase by just the kernel. You just don't spend that much time in the kernel. For instance run an app with time in front of it on the command line. Do your normal amount of activities. When you quit the app, check the amount of time spent in each portion of the system.
Most of the apps you are likely to run will spend a LARGE portion of time in the user portion of the system. This means the kernel doesn't have much if any effect there. The times the kernel would make a difference for overal speed is possibly if it recovers from idle a bit faster. Specifically if they ramp up CPU speed faster than others. but you know, this is a configuration option and most likely a runtime option you can set. Again, this is where the compiler options might make a difference though. If the apps are more likely to give up CPU time, it is possible that the govenor will slow the CPU down to conserve battery before the next thread pops up and wants time. With the huge number of configuration options that are possible in the linux kernel and userland, you can tweak it all over the place. But I will restate that I doubt that the kernel form one distro is actually any faster than that of the others on it's own. When combined with all the userland settings too, maybe one can be better. Critch ----- "Douglass Clem" <[EMAIL PROTECTED]> wrote: > From everything I've heard, the custom Xandros build is tailored to > this > computer, and on average runs about twice as fast as anything else > that can > be installed. I think that in specific, they've done a lot of tweaking > with > the kernel. > > Douglass Clem > crashsystems.net > Public Key: http://crashsystems.net/pubkey.asc > > > On Tue, Sep 16, 2008 at 3:38 PM, Steven S. Critchfield > <[EMAIL PROTECTED]>wrote: > > > > > > > ----- "Douglass Clem" <[EMAIL PROTECTED]> wrote: > > > I'm considering buying an eeePC > > > > 900<http://www.newegg.com/Product/Product.aspx?Item=N82E16834220367>, > > > which is the model with an 8.9" screen, 1.6gz cpu, 16gb SSD drive > and > > > 1gb of > > > ram. I've heard that the default Xandros distro on it makes it > blazing > > > fast, > > > with excellent battery life. However, I would much rather run > Ubuntu > > > on it, > > > particulary this version <http://ubuntu-eee.com>. Why exactly is > it > > > that > > > Xandros on this machine is so much faster? I figured that part of > it > > > might > > > be the kernel, so I figured I could install the Xandros kernel to > help > > > speed > > > things up. Would this work, and is there any other ways to make > Ubuntu > > > run > > > close to the same speed on the 900? > > > > On a linux box, how could one distro be faster than the other. The > kernel > > options could have a bit of an effect on it, but not too great if > the > > app runs mostly in userspace. > > > > Really all you can do is look at what added applications are running > that > > shouldn't. You need to also look at what the default compile > options > > might be. > > > > You will possibly find that some usability options in ubuntu will > hinder > > raw compute speed and battery life. You have to weigh those options > against > > your needs. The good news is you can make any distro perform pretty > much > > the same as any other with a little bit of effort. > > > > I would however be hesitant on switching out the kernels from one > distro > > to another. You might find that some functionality may not be there > that > > the distro expects. Or worse, the battery life benefits are from a > > userspace app helping you manage clock speed that isn't there in the > other > > distro and therefore not helping you in your quest. > > > > So finally, don't go mix and matching, just understand the problem > space > > and the apps that help you conquer the problems. > > > > -- > > Steven Critchfield [EMAIL PROTECTED] > > > > > > > > > -- Steven Critchfield [EMAIL PROTECTED] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en -~----------~----~----~----~------~----~------~--~---
