Package Exports

firewatch

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (firewatch) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Firewatch

Real-time command-line memory monitor for Firefox OS devices. Uses b2g-info.

Setup

Checkout project
npm install

Usage

node index.js

Example output

The numbers are in megabyte and update real-time; as fast as b2g-info can provide numbers (lag displayed in ms).

full_unagi (129 ms)
free (mb):           23.1
cache (mb):          54.0
pid    app             uss      pss      vsize (mb)
23071  b2g             53.2     55.8     173.7
23134  Usage           10.1     12.4     62.7
23165  Homescreen      11.5     14.1     67.2
23219  Calculator      8.3      10.5     61.1

USS (unique set size) is the set of pages that are unique to a process. This is the amount of memory that would be freed if the application was terminated right now.

PSS (proportional set size) is the amount of memory shared with other processes, accounted in a way that the amount is divided evenly between the processes that share it. This is memory that would not be released if the process was terminated, but is indicative of the amount that this process is "contributing" to the overall memory load.

http://elinux.org/Android_Memory_Usage

Dependencies

node and npm
ADB in $path
A Firefox OS device with 1.1+

Roadmap

App memory history
Keep killed apps
Show min/max and avg/mean for USS/PSS
GUI & graphs
about:memory details