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memray — Profile memory usage of a Python application. More information: <https://github.com/bloomberg/memray

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the memray command: Profile memory usage of a Python application. More information: <https://github.com/bloomberg/memray#usage>.

Solution

memray — Profile memory usage of a Python application. More information: <https://github.com/bloomberg/memray#usage>.

Run a Python file and track memory usage:

memray run {{path/to/file}}.py

Run a [m]odule and track memory usage:

memray run -m {{module_name}}

Specify an output name:

memray run {{[-o|--output]}} {{path/to/output_file}}.bin {{path/to/file}}.py

Display a summary of memory usage:

memray summary {{path/to/file}}.bin

Generate an HTML flamegraph:

memray flamegraph {{path/to/file}}.bin

Code Snippets

Run a Python file and track memory usage

memray run {{path/to/file}}.py

Run a [m]odule and track memory usage

memray run -m {{module_name}}

Specify an output name

memray run {{[-o|--output]}} {{path/to/output_file}}.bin {{path/to/file}}.py

Display a summary of memory usage

memray summary {{path/to/file}}.bin

Generate an HTML flamegraph

memray flamegraph {{path/to/file}}.bin

Context

tldr-pages: common/memray

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