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SubjectRe: [PATCH] Boottime: A tool for automatic measurement of kernel/bootloader boot time
Date
On Friday 12 October 2012, Russell King - ARM Linux wrote:
> > root@ME:/ cat /sys/kernel/debug/boottime/bootgraph
> > [ 0.185254] calling splash+0x0/0x0
> > [ 2.984335] initcall splash+0x0/0x0 returned 0 after 2799 msecs.
> > [ 2.984335] calling autoboot_delay+0x0/0x0
> > [ 4.089513] initcall autoboot_delay+0x0/0x0 returned 0 after 1105 msecs.
> > [ 4.089513] calling load_kernel+0x0/0x0
> > [ 4.239174] initcall load_kernel+0x0/0x0 returned 0 after 149 msecs.
> > [ 4.239174] calling boot_kernel+0x0/0x0
> > [ 4.276260] initcall boot_kernel+0x0/0x0 returned 0 after 37 msecs.
> > [ 4.276260] calling uncompress_ll_init+0x0/0x0
> > [ 4.276260] initcall uncompress_ll_init+0x0/0x0 returned 0 after 0 msecs.
> > [ 4.276260] Freeing init memory: 0K
>
> Umm, what happened to sysfs not becoming procfs v2? I thought we had
> a fairly strict requirement for "one value per file and not nicely
> formatted" for sysfs?
>

I was thinking the same thing at first, but then I noticed it's actually
debugfs, which has no such rules.

Arnd


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