Consumer Options
DTrace is tuned by setting or enabling options. The available options
are described in the table below. For some options, dtrace(1M) provides
a corresponding command-line option.
Table 10-1 DTrace Consumer Options
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aggrate
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time
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Rate of aggregation reading
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aggsize
|
size
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Aggregation buffer size
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aggsortkey
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—
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Sort aggregation by key order with ties broken by value
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aggsortrev
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—
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Sort aggregation in the reverse order
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aggsortpos
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position
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Position of the aggregate variable on which the output is sorted
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aggsortkeypos
|
position
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|
Position of the aggregate key on which the output is sorted
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bufresize
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auto or manual
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Buffer resizing policy
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bufsize
|
size
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-b
|
Principal buffer size
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cleanrate
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time
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Cleaning rate
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cpu
|
scalar
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-c
|
CPU on which to enable tracing
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defaultargs
|
—
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Allow references to unspecified macro arguments
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destructive
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—
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-w
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Allow destructive actions
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dynvarsize
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size
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Dynamic variable space size
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errexit
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scalar
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Exit on error with a specified status code. However, if no arguments are specified, exits with
the status code 1.
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flowindent
|
—
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-F
|
Indent function entry and prefix with >; unindent function return and prefix with
<
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grabanon
|
—
|
-a
|
Claim anonymous state
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jstackframes
|
scalar
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Number of default stack frames jstack
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jstackstrsize
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scalar
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|
Default string space size for jstack
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nspec
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scalar
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Number of speculations
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quiet
|
—
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-q
|
Output only explicitly traced data
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rawbytes
|
—
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|
Always print tracemem output in hexadecimal
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specsize
|
size
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|
Speculation buffer size
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strsize
|
size
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|
String size
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stackframes
|
scalar
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Number of stack frames
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stackindent
|
scalar
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|
Number of whitespace characters to use when indenting stack and ustack output
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statusrate
|
time
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Rate of status checking
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switchrate
|
time
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Rate of buffer switching
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ustackframes
|
scalar
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Number of user stack frames
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Values that denote sizes may be given an optional suffix of k, m, g, or t to denote kilobytes,
megabytes, gigabytes, and terabytes respectively. Values that denote times
may be given an optional suffix of ns, us, ms, s or hz to denote nanoseconds,
microseconds, milliseconds, seconds, and number-per-second, respectively.