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rsps

Crates.io

A command line tool to help find and debug Rust programs on your machine. Inspired by gops and a fit of boredom.

This only works if the binaries haven't be stripped beforehand.

Installation

$ cargo install rsps

Usage

List (default)

Lists all running Rust processes.

$ rsps # or rsps list
PID    Parent  Name  Command            Rust Ver.  Program Ver.
34107  10940   rsps  target/debug/rsps  1.52.1     0.3.1
34106  11719   rg    /usr/local/bin/rg  <unknown>  <unknown>

Tree

Displays Rust processes in a tree-like format.

$ rsps tree
@
├── 59235  [treem]
│          └── 59236  [branch]
│                     ├── 59238  [leaf]
│                     ├── 59237  [branch]
│                     │          ├── 59240  [branch]
│                     │          │          ├── 59244  [leaf]
│                     │          │          ├── 59242  [branch]
│                     │          │          │          └── 59245  [leaf]
│                     │          │          └── 59243  [branch]
│                     │          │                     └── 59246  [leaf]
│                     │          └── 59241  [leaf]
│                     └── 59239  [leaf]
└── 59262  [rsps]

Inspect

Display detailed information about a specific Rust process.

$ rsps inspect cargo # or rsps inspect <pid>
PID: 78632
Parent: 78274
User: matt
Name: cargo
Command: /Users/matt/.rustup/toolchains/stable-x86_64-apple-darwin/bin/cargo
CPU Usage: 6.57%
Memory Usage: 24.66 MiB (1.11%)

If the process has used the emboss crate, some additional information may be displayed:

PID: 34015
Parent: 10940
User: matt
Name: rsps
Command: target/debug/rsps
CPU Usage: 315.58%
Memory Usage: 21.92 MiB (1.75%)

Rust Version: 1.52.1
Program Version: 0.3.1
Cargo Build Profile: debug
Cargo Features: default
Build Timestamp: 2021-05-26T23:45:47.849240+00:00

Stack (Linux only)

Dumps the stack of a running Rust process, given the name or pid.

$ rsps stack cargo # or rsps stack <pid>
Thread ID: 279  Name: cargo
Stack Dump:
Frame #0: 7fe294f5e100   pthread_cond_timedwait
Frame #1: 564691cee080   std::sys::unix::condvar::Condvar::wait_timeout::h37a8048107691687
Frame #2: 5646915f9fd0   std::sync::condvar::Condvar::wait_timeout_while::hbfb743bd05dd9fc0
Frame #3: 564691415440   cargo::util::queue::Queue<T>::pop::h7fb70103b44dc37f
Frame #4: 56469154fbd0   cargo::core::compiler::job_queue::DrainState::drain_the_queue::h5b61c7275f6c30ad
Frame #5: 564691504160   std::panic::catch_unwind::h7e0c92cfb502709b
Frame #6: 5646914af4c0   crossbeam_utils::thread::scope::haf6d0e4c1aacb903
Frame #7: 56469154ec30   cargo::core::compiler::job_queue::JobQueue::execute::heaab11ff0a2fe80c
Frame #8: 564691437360   cargo::core::compiler::context::Context::compile::h35d7a4cf82b1b826
Frame #9: 564691697d00   cargo::ops::cargo_compile::compile_ws::hd140871262d59407
Frame #10: 56469147c350  cargo::ops::cargo_install::install_one::h63708159c342d27f
Frame #11: 56469147af40  cargo::ops::cargo_install::install::h101310e8cf160103
Frame #12: 564691365c20  cargo::commands::install::exec::h064cce367657894c
Frame #13: 564691358d60  cargo::cli::main::h71faf507b10707d7
Frame #14: 5646913c11d0  cargo::main::h6746203463cb9d36
Frame #15: 5646913b29c0  std::sys_common::backtrace::__rust_begin_short_backtrace::h715a397fa07175af
Frame #16: 5646913b29e0  std::rt::lang_start::{{closure}}::h3a8e3bf998c29384
Frame #17: 564691cebc10  std::rt::lang_start_internal::hd5b67df56ca01dae
Frame #18: 5646913c3580  main
Frame #19: 7fe294c2afb0  __libc_start_main
Frame #20: <no symbol>

Thread ID: 297  Name: cargo
Stack Dump:
Frame #0: 7fe294cf57d0  __poll
Frame #1: 564691cacb60  jobserver::imp::Client::acquire_allow_interrupts::h4f87d446882f6e88
Frame #2: 564691cae370  jobserver::HelperState::for_each_request::h80f41bf960986b48
Frame #3: 564691cae680  std::sys_common::backtrace::__rust_begin_short_backtrace::hcb30739b281791a0
Frame #4: 564691caf0e0  core::ops::function::FnOnce::call_once{{vtable.shim}}::h6fcaf617e71843a9
Frame #5: 564691cf5210  std::sys::unix::thread::Thread::new::thread_start::hb5e40d3d934ebb7a
Frame #6: 7fe294f57eb0  start_thread
Frame #7: <no symbol>

[...]

Currently limited to Linux only due to rstack only building on Linux.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

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