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boot_speed [2009/11/19 17:15]
vapier Links to a_simple_module_example changed to linux-kernel:module_example
boot_speed [2009/11/19 17:26] (current)
vapier Links to linux-kernel:module_example changed to linux-kernel:modules:example
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 If you compile the following code into your kernel, you can get an idea of when kernel code may be executed at different parts of the boot up process.  You could also insert a 'cat /proc/uptime' into the ''/etc/rc'' file so you know how long it took to start executing in userspace. If you compile the following code into your kernel, you can get an idea of when kernel code may be executed at different parts of the boot up process.  You could also insert a 'cat /proc/uptime' into the ''/etc/rc'' file so you know how long it took to start executing in userspace.
  
-What this snippet does is insert a line into the kernel buffer indicating how long it took to reach each kernel init level.  For more info, please see the [[linux-kernel:module_example#building_the_module_into_the_kernel|example module page]].+What this snippet does is insert a line into the kernel buffer indicating how long it took to reach each kernel init level.  For more info, please see the [[linux-kernel:modules:example#building_the_module_into_the_kernel|example module page]].
  
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