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Installation | Configuration | Resources Displayed | Contributing


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Screenshot with memory limit

Jupyter Resource Usage is an extension for Jupyter Notebooks and JupyterLab that displays an indication of how much resources your current notebook server and its children (kernels, terminals, etc) are using. This is displayed in the status bar in the JupyterLab and notebook, refreshing every 5s.

Kernel resource usage can be displayed in a sidebar for IPython kernels with ipykernel >= 6.11.0.

Screenshot for kernel usage

The kernel usage is available for Notebook 7.x too which can be enabled at View -> Right Sidebar -> Show Kernel Usage. In the case of JupyterLab interface, it is enough to click tachometer icon on the right sidebar.

The package provides an alternative frontend for the jupyter-resource-usage metrics:


Previously, this extension used to be distributed with jupyterlab-system-monitor package. Starting from 1.0.0, the alternative frontend has been integrated into the current repository. Check Alternative frontend section on how to enable and configure this alternative frontend.

Note that for JupyterLab 3.x and 2.x, users should install the alternative frontend from jupyterlab-system-monitor.


JupyterLab 4.x and Notebook 7.x

You should install the latest version >=1.0.0 for JupyterLab 4 compatability.

pip install jupyter-resource-usage

Or with conda:

conda install -c conda-forge jupyter-resource-usage

JupyterLab 3.x and Notebook 6.x

You should pin the versions to <1.0.0

pip install 'jupyter-resource-usage<1.0.0'

Or with conda:

conda install -c conda-forge 'jupyter-resource-usage<1.0.0'

If your notebook version is < 5.3, you need to enable the extension manually.

jupyter serverextension enable --py jupyter_resource_usage --sys-prefix
jupyter nbextension install --py jupyter_resource_usage --sys-prefix
jupyter nbextension enable --py jupyter_resource_usage --sys-prefix


Memory Limit

jupyter-resource-usage can display a memory limit (but not enforce it). You can set this in several ways:

  1. MEM_LIMIT environment variable. This is set by JupyterHub if using a spawner that supports it.
  2. In the commandline when starting jupyter notebook, as --ResourceUseDisplay.mem_limit.
  3. In your Jupyter notebook traitlets config file

The limit needs to be set as an integer in Bytes.

Memory usage warning threshold

Screenshot with memory warning

The background of the resource display can be changed to red when the user is near a memory limit. The threshold for this warning can be configured as a fraction of the memory limit.

If you want to flash the warning to the user when they are within 10% of the memory limit, you can set the parameter --ResourceUseDisplay.mem_warning_threshold=0.1.

CPU Usage

jupyter-resource-usage can also track CPU usage and report a cpu_percent value as part of the /api/metrics/v1 response.

You can set the cpu_limit in several ways:

  1. CPU_LIMIT environment variable. This is set by JupyterHub if using a spawner that supports it.
  2. In the command line when starting jupyter notebook, as --ResourceUseDisplay.cpu_limit.
  3. In your Jupyter notebook traitlets config file

The limit corresponds to the number of cpus the user has access to, but does not enforce it.

Additionally, you can set the track_cpu_percent trait to enable CPU usage tracking (disabled by default):

c = get_config()
c.ResourceUseDisplay.track_cpu_percent = True

As a command line argument:

jupyter notebook --ResourceUseDisplay.track_cpu_percent=True

When track_cpu_percent is set to True, status will report CPU utilisation along with memory:

Screenshot with CPU and memory

Disable Prometheus Metrics

There is a known bug with Prometheus metrics which causes "lag"/pauses in the UI. To workaround this you can disable Prometheus metric reporting using:


Enable alternative frontend

By default, the alternative frontend is disabled. To enable it, users should go to Settings -> Settings Editor -> Resource Usage Indicator which will render following form


By checking "Enable resource usage indicators" and refreshing the browser tab will render the alternative frontend in the topbar.

Users can change the label and refresh rate for the alternative frontend using settings editor.

Resources Displayed

Currently the server extension only reports memory usage and CPU usage. Other metrics will be added in the future as needed.

Memory usage will show the PSS whenever possible (Linux only feature), and default to RSS otherwise.

The notebook extension currently doesn't show CPU usage, only memory usage.


If you would like to contribute to the project, please read the The file explains how to set up a development installation and how to run the test suite.