Probe Point Specifications
Currently IBM provides the following probe providers on AIX 6.1: syscall, uft, interval, trace, and the probevue probes (BEGIN and END). The syscall provider defines probe points for a subset of the available system calls. User Function Tracing (uft) probes can be defined for entry points of functions defined in a C or C++ program. Both syscall and uft probes must include a valid function prototype in the Vue script before function parameters (for the entry probes) or return values (for syscall exit probes only) can be accessed. The interval probes fire on a timer and can be defined on 100 millisecond intervals. The trace provider allows ProbeVue to access traditional trace hooks. Finally the probevue probes called BEGIN and END will fire as the probevue environment itself starts and exits.
Read more about this topic: Probe Vue
Famous quotes containing the words probe and/or point:
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“For the poet the credo or doctrine is not the point of arrival but is, on the contrary, the point of departure for the metaphysical journey.”
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