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RaspEX Build 160308 with OpenCPN pre-installed, now especially for Raspberry Pi 3

Posted 03-08-2016 at 10:39 AM by exton (Exton's Blog)

RaspEX Build 160308 based on Ubuntu 15.10 with OpenCPN especially made for Raspberry Pi 3

OpenCPN is a free software (GPLv2) project to create a concise chart plotter and navigation software, for use underway or as a planning tool. OpenCPN is developed by a team of active sailors using real world conditions for program testing and refinement.

This build (160803) replaces build 151029 which can run only on Raspberry Pi 2 computers. Build 160803...
ExTiX Admin
Views 474 Comments 0 exton is offline

It runs from command line but not from cron or init script

Posted 03-08-2016 at 09:43 AM by MensaWater
Updated 03-08-2016 at 12:01 PM by MensaWater

This question has been posted many times over the years both here at LQ and other sites. Accordingly I'm making this a blog post in the hopes people will find it useful.

When one run things at command line they inherit the environment of the user running them as set by things such as /etc/profile, $HOME/.bashrc, $HOME/.profile and/or $HOME/.bash_profile.

There are many environment variables that can impact a script. You can see all the environment variables you...
LQ Guru
Posted in Uncategorized
Views 418 Comments 0 MensaWater 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

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
Set to Enabled

Number of raster threads
Set to "Number of threads/cores your cpu have"

These two will increase Javascript...
Views 3379 Comments 1 ugjka is offline

RaspEX Build 160307 especially built for the new Raspberry Pi 3

Posted 03-07-2016 at 03:45 AM by exton (Exton's Blog)

The Raspberry Pi 3 is the third generation Raspberry Pi. It replaced the Raspberry Pi 2 Model B in February 2016.

Compared to the Raspberry Pi 2 it has:
A 1.2GHz 64-bit quad-core ARMv8 CPU
802.11n Wireless LAN
Bluetooth 4.1
Bluetooth Low Energy (BLE)

Raspberry Pi 3: HOW MUCH BETTER is it than the Raspberry Pi 2? Raspberry Pi 3 is performing 10 times faster than that of the Pi 1 and around 50 percent better than that of the Pi 2 according...
ExTiX Admin
Views 370 Comments 1 exton 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

Distro: Archlinux

Kernel: Use ck kernel optimized to your CPU platform to get the best bfs optimizations: linux-ck-core2
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...
Views 960 Comments 0 ugjka is offline


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