LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software > Linux - Kernel
User Name
Password
Linux - Kernel This forum is for all discussion relating to the Linux kernel.

Notices

Reply
 
Search this Thread
Old 01-14-2013, 03:17 PM   #1
malloc
Member
 
Registered: Jul 2010
Posts: 111

Rep: Reputation: 4
Boot information


What is the timing information displayed during the boot process of the kernel? Namely the information enclosed in square brackets?

I've seen this information disappear when some kernel option was removed from my custom kernel and then added back in, in another kernel, what is this option, and what do the numbers mean? Are they measured in seconds, or something else? What are these numbers called? I'm assuming they are for timing purposes?
 
Old 01-14-2013, 03:29 PM   #2
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 12,269

Rep: Reputation: 1028Reputation: 1028Reputation: 1028Reputation: 1028Reputation: 1028Reputation: 1028Reputation: 1028Reputation: 1028
I think it's the kernel active time in microseconds (since the kernel became active).
It doesn't indicate wall-clock time as the kernel isn't always active - most notable in a virtualised guest, but true even in a stand-alone system.

I'll see if I can find a reference I looked at a while back.

Last edited by syg00; 01-14-2013 at 05:10 PM. Reason: s/milli/micro/
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
linux boot information m4serveu Linux - Newbie 2 01-09-2009 12:45 PM
boot and start up information BLUEeee Linux - General 1 11-16-2008 03:39 PM
need information about dual boot dellroxy Solaris / OpenSolaris 1 10-27-2008 04:57 AM
boot log information required! xcr Linux - General 4 03-05-2006 03:04 PM
Would like some triple boot information. bkz81 Linux - Newbie 14 08-08-2005 08:31 PM


All times are GMT -5. The time now is 01:25 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration