[ltt-dev] Porting "jump labels" to userspace (was: Re: LTTng-UST vs SystemTap userspace tracing benchmarks)

Roland McGrath roland at redhat.com
Wed Feb 16 15:04:49 EST 2011

IMHO there is not really so much to the in-kernel implementation that it's
worth attempting to reuse the code in userland.  Pretty much all the work
is in the details of the implementation that would naturally differ a lot
in a different context.  If you understand the mechanism and the machine
details, then implementing it well for a userland context is not a big deal
and is cleaner to do from scratch than shoe-horning kernel-centric code
into a wildly different context.


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