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SubjectRe: [PATCH] tracing: Cleanup the convoluted softirq tracepoints
On 10/20/2010 08:27 AM, Jason Baron wrote:
>
> sure. The idea of the 'jmp 0' was simply to be an lcd for x86, if
> there's a better lcd for x86, I'll update it. But note, that since the
> 'jmp 0' is patched to a better nop at boot, we wouldn't see much gain.
> And in the boot path we are using 'text_poke_early()', so avoiding that
> isn't going to improve things much.
>

It's still a completely unnecessary waste of startup time some
potentially significant fraction of the time. Startup time matters,
especially as the number of tracepoints grow.

-hpa


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