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Re: proposed instruction trace support in SystemTap


Dave Nomura <dcnltc@us.ibm.com> writes:

> It appears that ptrace() wouldn't be able to deliver acceptable
> performance for instruction tracing.  Do you think that utrace would
> be a reasonable alternative?

That's what Roland is saying.  The next question is "who shall
prototype a single-stepping-on-top-of-utrace kernel module?".  With
such a prototype in hand, plopping support into systemtap is a small
step beyond.

- FChE


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