profile(7d) [sunos man page]
profile(7D) Devices profile(7D) NAME
profile - DTrace profile interrupt provider DESCRIPTION
The profile driver is a DTrace dynamic tracing provider that adds time-based interrupt event sources that can be used as DTrace probes. Each profile event source is a time-based interrupt firing every fixed, specified time interval. You can use these probes to sample some aspect of system state every unit time and the samples can then be used to infer system behavior. If the sampling rate is high, or the sam- pling time is long, an accurate inference is possible. By using the DTrace facility to bind arbitrary actions to probes, you can use the profile provider to sample practically anything in the system. For example, you could sample the state of the current thread, the CPU state, or the current machine instruction each time a probe fires. The profile driver is not a public interface and you access the instrumentation offered by this provider through DTrace. Refer to the Solaris Dynamic Tracing Guide for a description of the public documented interfaces available for the DTrace facility and the probes offered by the profile provider. ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWdtrp | +-----------------------------+-----------------------------+ |Interface Stability |Private | +-----------------------------+-----------------------------+ SEE ALSO
dtrace(1M), attributes(5), dtrace(7D) Solaris Dynamic Tracing Guide SunOS 5.10 4 Sep 2003 profile(7D)
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fasttrap(7D) Devices fasttrap(7D) NAME
fasttrap - DTrace user instruction tracing provider DESCRIPTION
The fasttrap driver is a DTrace dynamic tracing provider that performs dynamic instrumentation of arbitrary instructions in Solaris pro- cesses. The fasttrap driver implements the DTrace fasttrap and pid providers. The fasttrap driver is not a public interface and you access instrumentation offered by this provider through DTrace. Refer to the Solaris Dynamic Tracing Guide for a description of the public documented interfaces available for the DTrace facility and the probes offered by the fasttrap provider. SPARC ONLY
The fasttrap provider provides a DTrace probe that fires each time a user process executes an instruction. The pid provider allows for the dynamic creation of DTrace probes corresponding to instruction locations inside any user process specified using a process ID and an instruction address or symbol name. Together these providers permit DTrace users to perform instrumentation of Solaris user processes and to trace the interactions between processes and the operating system. See the chapter entitled "User Process Tracing" in the Solaris Dynamic Tracing Guide for information on how to use these providers to instrument processes. ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWdtrp | +-----------------------------+-----------------------------+ |Interface Stability |Private | +-----------------------------+-----------------------------+ SEE ALSO
dtrace(1M), attributes(5), dtrace(7D) Solaris Dynamic Tracing Guide SunOS 5.11 4 Sep 2003 fasttrap(7D)