DTrace is Solaris 10's new Dynamic Tracing facility. It allows us to peer into the innards of running processes and customize our view to exclude extraneous information and close in on the source of a problem.
DTrace also has capabilities that allow us to examine a crash dump or trace the boot process.
A number of freely available scripts have been made available as the DTrace Toolkit. The toolkit provides both programming examples and also extremely useful tools for different types of system monitoring.
The DTrace facility provides data to a number of consumers, including commands such as
dtrace and lockstat, as well as programs calling libraries that access DTrace through the dtrace kernel driver.Read more http://blogmee.info/index.php/solaris-monitoring-command-dtrace/
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