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DTrace Internals: Digging into DTrace

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Logo of Berkeley Software Distribution (BSD)Berkeley Software Distribution (BSD)
 Thomas, Arun

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DTrace Internals: Digging into DTrace
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31
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CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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DTrace is a powerful debugging and system introspection tool. BSD developers are merrily using DTrace to understand their systems, but how does DTrace actually work? You will find out in this talk. We will dig into the architecture and internals of the DTrace framework. We will discuss how both kernel and userland tracing work under the hood. We will also dig into DTrace's support for x86-64, ARMv8, and RISC-V on FreeBSD. Finally, we will answer the deep philosophical question: Can you dtrace DTrace?