LinuxQuestions.org

Monitor your laptop with fswebcam

Posted 03-20-2016 at 10:29 AM by ugjka
Updated 03-20-2016 at 10:42 AM by ugjka

This is a little tutorial on how to take a picture from the webcam with systemD timers every 15 minutes.

Install fswebcam a commandline utility for grabbing pics off the webcam

Create a script in /usr/local/bin/ called snap that grabs a pic and put date and time in the filename
Don't forget to chmod +x to make it executable

Code:

#/usr/local/bin/snap 
#!/bin/bash
_now=$(date +"%Y_%m_%d_%H_%M")
/usr/bin/fswebcam

...

ugjka

Member

Posted in Uncategorized

Views 2385 Comments 2 ugjka is offline

Makepkg makepkg.conf Optimizations

Posted 03-12-2016 at 05:59 AM by ugjka
Updated 03-12-2016 at 10:07 AM by ugjka

Tags arch, archlinux, makepgk, optimizations, pacman

Here are my /etc/makepkg.conf Optimizations

Makepkg.conf is used whenever you build a package from the Aur or any other source. (makepkg -si)

1) Set -march and -mtune to native to optimize packages to your CPU architecture.
Do not fiddle with this if you are building packages for someone else who has different CPU

Code:

CFLAGS="-march=native -mtune=native -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4"
CXXFLAGS="-march=native

...

ugjka

Member

Posted in Performance Tunings

Views 2817 Comments 0 ugjka is offline

Google Chrome flags for Performance (ver 49)

Posted 03-07-2016 at 04:07 AM by ugjka
Updated 03-17-2016 at 01:41 PM by ugjka

Tags chrome, google, performance, tunings

These are the settings I use with Google Chrome to get most of my machine (Dell Vostro 1015/ 3Gig ram)

Type about:flags in the adress bar or copy paste the chrome urls

GPU rasterization
chrome://flags/#enable-gpu-rasterization
Set to Enabled

Number of raster threads
chrome://flags/#num-raster-threads
Set to "Number of threads/cores your cpu have"

These two will increase Javascript...

ugjka

Member

Posted in Performance Tunings

Views 9015 Comments 1 ugjka is offline

Performance Tunings for Desktop/ Intel GM45 gfx / 3GB ram

Posted 03-06-2016 at 10:01 AM by ugjka
Updated 03-24-2016 at 03:50 PM by ugjka

Tags performance, speed, tuning, vostro

Distro: Archlinux

Kernel: Use ck kernel optimized to your CPU platform to get the best bfs optimizations: linux-ck-core2

Code:

Linux ArchPC 4.3.6-1-ck #1 SMP PREEMPT Fri Feb 19 19:46:41 EST 2016 x86_64 GNU/Linux

Kernel Parameters:

workqueue.power_efficient=0 : Disable power savings and increase performance
pcie_bus_perf : Set device MPS to the largest allowable MPS
elevator=bfq : Use Brainfuck Scheduler for IO
zswap.enabled=1 : Enable...

ugjka

Member

Posted in Performance Tunings

Views 2865 Comments 0 ugjka is offline

Compton and Intel Gfx | No tearing and 60 FPS

Posted 02-12-2016 at 12:18 PM by ugjka
Updated 03-07-2016 at 05:48 AM by ugjka (Updated!)

Tags 60 fps, compton, intel graphics, no tearing

These are my configs for achieving 60FPS without tearing on Intel GM45 Onboard Graphics. I'm using compton for this.

These optimizations are for speed not quality. The purpose of this was to achieve lagless 60fps video playback on my old Dell Vostro 1015 laptop. I still get frame drop on youtube but it is better than it was previously.

My Xorg configuration

Code:

#cat /etc/X11/xorg.conf.d/20-intel.conf 
Section "Device"
   Identifier

...

ugjka

Member

Posted in Video Performance

Views 1722 Comments 0 ugjka is offline