rust-parallel – execute commands in parallel

rust-parallel is a command-line utility to execute commands in parallel and aggregate their output.

It offers a similar interface to parallel or xargs.

This is free and open source software.

rust-parallel prevents output interleaving and is very fast. There are 2 options:

• By default 2 pipes are opened for each spawned child process to capture stdout and stderr and send it back to the parent process. There is a single task in the parent process using a tokio::sync::mpsc::channel to receive and do a non-blocking copy of each child’s output to stdout and stderr. All output from each child process is processed by this task, so there is no output interleaving. Temporary output is not written to disk.
• The -d, --discard-output option can be used to discard stdout, stderr, or both from spawned child processes. This reduces the number of pipes opened and data copied. This may make rust-parallel even faster if child processes produce unnecessary output.

Website: github.com/aaronriekenberg/rust-parallel
Support:
Developer: Aaron Riekenberg
License: Apache License 2.0

rust-parallel is written in Rust. Learn Rust with our recommended free books and free tutorials.

Alternatives to xargs

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