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# Description Fixes #14470 where the `sys cpu` command is slow. This was done by removing the `cpu_usage` column from the default output, since it takes 400ms to calculate. Instead a `--long` flag was added that, when provided, adds back the `cpu_usage` column. ```nu # Before > bench { sys cpu | length } | get mean 401ms 591µs 896ns # After > bench { sys cpu | length } | get mean 500µs 13ns # around 1-2ms in practice ``` # User-Facing Changes - `sys cpu` no longer has a `cpu_usage` column by default. - Added a `--long` flag for `sys cpu` to add back the removed column.
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.