07-14-2010
I believe the book you are reading is the 2nd part of Solaris internals. I would say you start from it. I will be quite hard to user DTrace unless one has good knowledge of what is happening behind the scenes.
It is a difficult subject. We had a similar course from Sun, Solaris performance management. Even the instructor left the official Sun book and used slides from the Solaris internals book.
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LEARN ABOUT SUNOS
lockstat
lockstat(7D) Devices lockstat(7D)
NAME
lockstat - DTrace kernel lock instrumentation provider
DESCRIPTION
The lockstat driver is a DTrace dynamic tracing provider that performs dynamic instrumentation for locking primitives in the Solaris ker-
nel.
The lockstat provider makes probes available that you can use to discern lock contention statistics, or to understand virtually any aspect
of locking behavior inside the operating system kernel. The lockstat(1M) command is implemented as a DTrace consumer that uses the lockstat
provider to gather raw data.
The lockstat 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 lockstat 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), lockstat(1M), attributes(5), dtrace(7D)
Solaris Dynamic Tracing Guide
SunOS 5.10 3 Sep 2003 lockstat(7D)