Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/felixrieseberg/dennard
:microscope: Tiny Node cli tool to see a local app's memory footprint, cross-platform
https://github.com/felixrieseberg/dennard
Last synced: 11 days ago
JSON representation
:microscope: Tiny Node cli tool to see a local app's memory footprint, cross-platform
- Host: GitHub
- URL: https://github.com/felixrieseberg/dennard
- Owner: felixrieseberg
- License: mit
- Created: 2018-11-02T10:44:50.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2018-12-07T05:02:15.000Z (almost 6 years ago)
- Last Synced: 2024-09-22T16:36:53.844Z (about 2 months ago)
- Language: JavaScript
- Homepage:
- Size: 8.79 KB
- Stars: 54
- Watchers: 2
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Dennard
A tiny 0-dependencies cross-platform Node.js module that shows the memory
footprint for applications. Named after Robert Dennard, inventor of DRAM.
## Installation
```
npm i -g dennard
```
## Usage
```sh
dennard name-of-app [-w|--watch]
```
`dennard` will wildcard-match all processes with the given name.
:warning: On macOS, the tool needs to run as `sudo`. Internally, this module
calls `footprint`, which requires `sudo` privileges.
```sh
dennard Chrome
┌──────────────────────────────┬───────────┬───────────────┐
│ name │ pid │ megabytes │
├──────────────────────────────┼───────────┼───────────────┤
│ Google Chrome Helper │ 22801 │ 359.97 │
│ Google Chrome │ 21721 │ 260.6 │
│ Google Chrome Helper │ 21725 │ 242.6 │
│ Google Chrome Helper │ 21730 │ 151.89 │
│ Google Chrome Helper │ 36459 │ 130.96 │
│ Google Chrome Helper │ 21739 │ 96.16 │
│ Google Chrome Helper │ 21737 │ 75.79 │
│ Google Chrome Helper │ 21746 │ 62.71 │
│ Google Chrome Helper │ 21740 │ 56.5 │
│ Google Chrome Helper │ 36125 │ 44.46 │
│ Google Chrome Helper │ 21736 │ 37.01 │
│ Google Chrome Helper │ 21738 │ 28.68 │
│ Google Chrome Helper │ 57516 │ 22.93 │
│ crashpad_handler │ 21723 │ 1.59 │
│ AlertNotificationService │ 21728 │ 1.16 │
└──────────────────────────────┴───────────┴───────────────┘
Total memory footprint: 1469.1MB
```
## Memory Information
On Windows, `dennard` returns the size of the "[working set][working-set]".
The working set consists of the pages of memory that were recently referenced
by the process.
On macOS and Linux, `dennard` gathers the sum of dirty/anonymous allocations
in one or more processes along with their attributable kernel resources
(KPRVT). Shared allocations only contribute to the footprint once, regardless of
the number of times that they are mapped into any number of processes. The goal
is for the resulting number to be as close as possible to what the macOS
`Activity Monitor` reports as `Memory` usage.
## License
MIT, please see `LICENSE` for details
[working-set]: https://docs.microsoft.com/en-us/windows/desktop/memory/working-set