PROFILE(7D)PROFILE(7D)NAMEprofile - 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 sampling
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 instru‐
mentation offered by this provider through DTrace. Refer to the Solaris
Dynamic Tracing Guide for a description of the public documented inter‐
faces 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 │
├────────────────────┼─────────────────┤
│Interface Stability │ Private │
└────────────────────┴─────────────────┘
SEE ALSOdtrace(1M), attributes(5), dtrace(7D)
Solaris Dynamic Tracing Guide
Sep 4, 2003 PROFILE(7D)
