Re: printk and kernel log

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Jun 24, 2013 at 4:49 PM, Kevin Wilson <wkevils@xxxxxxxxx> wrote:
> Hi,
> When I add printk messages, and then try
> to read /var/log/messages,
> I see this:
>
> Jun 24 03:43:06 localhost kernel: [ 1858.148661] in my_func1
> Jun 24 03:44:03 localhost kernel: [ 1915.150953] in my_func2
>
> What are the numbers is square brackets  ?  like [ 1858.148661]
> or [ 1915.150953] ?

IIRC, they are jiffies a.k.a timer clock. It is incremented every 1/HZ
second. Major distros usually use HZ=1000 these days.

Looking at kernel config, I believe this parameter is the one that
toggle that timestamp:
CONFIG_PRINTK_TIME=y

So changing it to N and recompile the kernel should get rid of it.

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies




[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux