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
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.
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".
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 Monitorreports as
Memory` usage.
License
MIT, please see LICENSE
for details