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Re: [microblaze-uclinux] kernel profiling
Jim Van Vorst wrote:
Has anyone gotten kernel profiling running with 2.6? It looks like
oprofile is available in uclinux but for !microblaze. I tried
readprofile but got something useless. I could compile with -pg but
then I'd have to write the enter/exit support. But I figure someone has
already done this.
In the 2.4 kernel, the older style kernel profiling and readprofile work
I haven't tried them in 2.6, and to be honest am not sure how they
interplay with oprofile, which profiles libs and apps as well as the kernel.
oprofile on no-mmu is a bit of a pain, the kernel hooks are straight
forward but there's a bunch of userspace utils for reading the profile
buffers, and displaying/interpreting the info, that have to be hacked on
to work without an MMU.
I'll have a bit of a dig and see what I can find. Regular readprofile
shouldn't be too hard to get going, oprofile is a bit more involved.
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