Profiling_code_in_Rust

• https://github.com/flamegraph-rs/flamegraph

• Install it, and run

# Rust projects
cargo flamegraph

# Arbitrary binaries
flamegraph -- /path/to/binary

How to interpret a flamegraph?

• https://www.reddit.com/r/rust/comments/wf9mbn/how_to_interpret_a_flamegraph/?rdt=61382

Heap profiling and ad hoc profiling for Rust programs.

• https://github.com/nnethercote/dhat-rs

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dhat 사용법(valgrind)

• https://valgrind.org/docs/manual/dh-manual.html

$ valgrind --tool=dhat ./program

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(221220)Profiling Code in Rust - by Vitaly Bragilevsky - Rust Linz, December 2022 | Rust

• https://youtu.be/JRMOIE_wAFk?si=Ngl2T0FWl74H8v_5

  • 동영상내용 github 코드(https://github.com/bravit/generate_parentheses)

• (230110) Heap profiling Rust programs with DHAT | chris biscardi

• (230515)I built my own memory profiler(in Rust, On Linux

• (240209) RustConf 2023 - Profiling async applications in Rust | Rust

• samply

  • (240824)Performance Optimization in Rust - How to Profile with Samply

samply

• samply is a command line CPU profiler which uses the Firefox profiler as its UI.
  • https://github.com/mstange/samply

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C++로 만든 hotspot

https://github.com/KDAB/hotspot

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Rust Profiling 도구 종류

• https://nnethercote.github.io/perf-book/profiling.html

perf
gprof
callgrind / cachegrind
DTrace
Other

Profilers(Rust)

• https://nnethercote.github.io/perf-book/profiling.html
  • There are many different profilers available, each with their strengths and weaknesses. The following is an incomplete list of profilers that have been used successfully on Rust programs.

perf is a general-purpose profiler that uses hardware performance counters. Hotspot and Firefox Profiler are good for viewing data recorded by perf. It works on Linux.

Instruments is a general-purpose profiler that comes with Xcode on macOS.

Intel VTune Profiler is a general-purpose profiler. It works on Windows, Linux, and macOS.

AMD μProf is a general-purpose profiler. It works on Windows and Linux.

samply is a sampling profiler that produces profiles that can be viewed in the Firefox Profiler. It works on Mac and Linux.

flamegraph is a Cargo command that uses perf/DTrace to profile your code and then displays the results in a flame graph. It works on Linux and all platforms that support DTrace (macOS, FreeBSD, NetBSD, and possibly Windows).

Cachegrind & Callgrind give global, per-function, and per-source-line instruction counts and simulated cache and branch prediction data. They work on Linux and some other Unixes.

DHAT is good for finding which parts of the code are causing a lot of allocations, and for giving insight into peak memory usage. It can also be used to identify hot calls to memcpy. It works on Linux and some other Unixes. dhat-rs is an experimental alternative that is a little less powerful and requires minor changes to your Rust program, but works on all platforms.

heaptrack and bytehound are heap profiling tools. They work on Linux.

counts supports ad hoc profiling, which combines the use of eprintln! statement with frequency-based post-processing, which is good for getting domain-specific insights into parts of your code. It works on all platforms.

Coz performs causal profiling to measure optimization potential, and has Rust support via coz-rs. It works on Linux.