lastwake.py

Wake/Sleep Time SystemD Journal Analyzer

What it does: Analyzes the system journal and prints out wake-up and sleep timestamps; for each cycle it tells whether the system was suspended to RAM or to disk (hibernated).

By default it will perform the analysis of wake-up/sleep cycles for the current boot, but also accepts a boot-id as an arguments (boot-id's can be obtained from: journalctl --list-boots)

Requirements

This program requires:

1. The libsystemd development library. To get it:

   In recent ubuntu versions:

   sudo apt install libsystemd-dev
   

   In fedora:

   sudo dnf install systemd-devel
   

2. And finally: systemd-python (Github, PyPI). To get it:

   pip3 install -r requirements.txt
   

Installation

1. Install the requirements above.
2. Create a symbolic link to the program in your "~/bin" dir:

   # create the ~/bin dir if it doesn't already exist
   mkdir -p ~/bin
   # change to this repository's "lastwake.py" **directory**
   cd path/to/lastwake.py
   # Create a symbolic link, named `lastwake`, to the Python executable inside the ~/bin dir
   ln -si "${PWD}/lastwake.py" ~/bin/lastwake

3. On Ubuntu, if this is the first time creating and using the ~/bin dir, log out and log back in to automatically add this dir to your PATH. If on another Linux system, do what is required to add the ~/bin dir to your PATH variable. Now you can call lastwake from anywhere in your terminal.

Usage

lastwake [-h] [-b BOOT_ID] [bootId]

Examples

lastwake

lastwake --boot-id afdffb7dae61404abb5506ebf10ee2ac

lastwake afdffb7dae61404abb5506ebf10ee2ac

Sample Output

Wake/Sleep Time SystemD Journal Analyzer

 Boot under analysis: selected boot = afdffb7dae61404abb5506ebf10ee2ac
 Initial Boot Timestamp:  2017-07-06 11:23:42

   Wake Timestamp    |   Sleep Timestamp   | Awake Time | Wake From
 ------------------- | ------------------- | ---------- | ---------
 2017-02-20 09:22:17 | 2017-02-20 09:52:18 |    0h 30m  | Cold Boot
 2017-02-20 10:27:13 | 2017-02-20 10:49:26 |    0h 22m  | S4 (disk)
 2017-02-20 10:50:50 | 2017-02-20 11:03:16 |    0h 12m  | S4 (disk)
 2017-02-20 21:51:55 | 2017-02-20 22:41:44 |    0h 49m  | S4 (disk)
 2017-02-20 22:42:10 |    (Still Awake)    |    0h  1m  | S3 (RAM) 
 ------------------- | ------------------- | ---------- | --------- 

Days Since Boot: 0.51 - Days Awake: 0.09 - Wake/Sleep Cycles: 4