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In the DTrace Recording wizard, you can change a number of settings for your recording:
Recording Time: Specifies how long you want to record.
Buffer Policy: Specifies the buffer policy that DTrace will use, available are: switch (default), fill and ring. For more information about buffer policy, see the Principal Buffer Policies in the Solaris Dynamic Tracing Guide at: http://download.oracle.com/docs/cd/E19082-01/819-3620/chp-buf-2.3/index.html
Process - Which process to profile with DTrace (if you are connecting to a local process, this option is not available)
Any probe specific settings, for example, Allocation Block Size.
Note: The performance overhead of the DTrace recording may vary depending on the probe specific settings that you make.