Robert(dot)Lor(at)Sun(dot)COM (Robert Lor) writes:
> For DTrace, probes can be enabled using a D script. When the probes
> are not enabled, there is absolutely no performance hit whatsoever.

That seems inconceivable.

In order to have a way of deciding whether or not the probes are
enabled, there has *got* to be at least one instruction executed, and
that can't be costless.
-- 
output = reverse("gro.mca" "@" "enworbbc")
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In response to

• Generic Monitoring Framework Proposal at 2006-06-19 19:58:48 from Robert Lor

Responses

• Re: Generic Monitoring Framework Proposal at 2006-06-20 12:36:12 from Martijn van Oosterhout

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