A recent version of the Linux kernel will see two CPU's but know they're on the same physical processor. This is important especially when you have multiple physical multi-core processors.
Multiple cores share text segments- the kernel will try to keep multiple threads of the same process on the same physical CPU. On 5/8/08, Shlomi Fish <[EMAIL PROTECTED]> wrote: > On Thursday 08 May 2008, Moshe Gorohovsky wrote: >> Hi linux-il, >> >> Hag Sameah! >> >> I recently set up a linux PC with Intel Core2 Duo CPU. >> >> I had started the PC up from a knoppix v5.3.1 DVD. >> Linux kernel on this DVD uses graphical framebuffer console and >> shows two penguin images on start-up. My previous machine >> showed a single penguin image. It was AMD K7 CPU (single core). >> >> Why linux kernel shows two penguin images on boot? >> Does it count CPU cores? >> > > In a way. The number of penguins is indicative of the number of processors > the > machine has. I'm getting two processors on my relatively old P4-2.4GHz > machine which just has the so-called "Hyper-Threading" feature. > > Regards, > > Shlomi Fish > > ----------------------------------------------------------------- > Shlomi Fish http://www.shlomifish.org/ > Parody on "The Fountainhead" - http://xrl.us/bjria > > The bad thing about hardware is that it sometimes work and sometimes > doesn't. > The good thing about software is that it's consistent: it always does not > work, and it always does not work in exactly the same way. > > ================================================================= > To unsubscribe, send mail to [EMAIL PROTECTED] with > the word "unsubscribe" in the message body, e.g., run the command > echo unsubscribe | mail [EMAIL PROTECTED] > > ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
