runlim

Measure and limit resource usage of commands

TLDR

Print time and memory usage of a command

$ runlim command arguments

Log statistics to a file

$ runlim --output-file=path/to/file command arguments

Limit CPU time (seconds)

$ runlim --time-limit=60 command arguments

Limit real-time (seconds)

$ runlim --real-time-limit=120 command arguments

Limit memory space (MB)

$ runlim --space-limit=1024 command arguments

SYNOPSIS

runlim [options] command [arguments...]

runlim samples and limits time and memory usage of a program and its child processes. It uses the /proc filesystem on Linux to monitor resource consumption.
The tool is useful for benchmarking, testing, and preventing runaway processes from consuming excessive resources.

PARAMETERS

--output-file file

Log statistics to file instead of stdout

--time-limit seconds

CPU time limit

--real-time-limit seconds

Wall clock time limit

--space-limit MB

Memory limit in megabytes

CAVEATS

Linux-specific; relies on /proc filesystem. Resource measurements are sampled, not exact.

HISTORY

Developed for benchmarking and resource limiting, commonly used in automated testing and competitive programming environments.