mirror of https://github.com/CrimsonTome/tldr.git
38 lines
1.1 KiB
Markdown
38 lines
1.1 KiB
Markdown
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# dtrace
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> A simple interface to invoke the D language compiler, retrieve buffered trace, and print traced data from the DTrace kernel facility.
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> Generic front-end to DTrace facility, requiring root privileges.
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> More information: <https://www.unix.com/man-page/osx/1/dtrace/>.
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- Set target data model for a specific architecture:
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`dtrace -arch {{arch_name}}`
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- Claim [a]nonymous tracing state and display the traced data:
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`dtrace -a`
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- Set principal trace buffer size. Supported units are `k`, `m`, `g`, or `t`:
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`dtrace -b {{2g}}`
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- Compile the specified D Program [s]ource file:
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`dtrace -s {{D_script}}`
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- Run the specified [c]ommand and exit upon its completion:
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`dtrace -c {{command}}`
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- Specify [f]unction name to trace or list (-l option). The corresponding argument can include any of the probe description forms like `provider:module:function`, `module:function` or `function`:
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`dtrace -f {{function}}`
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- Grad the specified [p]rocess ID, cache its symbol table, and exit upon completion:
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`dtrace -p {{pid}}`
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- Combine different options for tracing function in a process:
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`dtrace -a -b {{buffer_size}} -f {{function}} -p {{pid}}`
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