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by precious_pony
Fri Mar 13, 2015 10:26 pm
Forum: Java
Topic: Comparing Maven, Gradle and Ant.
Replies: 11
Views: 3769

Re: Comparing Maven, Gradle and Ant.

Idea of RAM disk is nice, but I always though that OS like Linux does manage disk cache really effectively. I have confirmed it with trying to deploy one system on JBoss (2.5+GB) from different mediums. First ordinary HD, SSD and ram disk. It turns out that SSD and ram disk didn't show any differen...
by precious_pony
Thu Mar 12, 2015 3:41 pm
Forum: Java
Topic: Comparing Maven, Gradle and Ant.
Replies: 11
Views: 3769

Re: Comparing Maven, Gradle and Ant.

The Pi is bottlenecked by IO. The standard Java compiler alternates between read and write ops thousands of times in a typical build. Random access IO is particularly slow on the majority of SD cards, and it is my experience that the compilation process benefits better from caching in RAM than it do...
by precious_pony
Fri Mar 06, 2015 4:54 pm
Forum: Java
Topic: Could not initialize class gnu.io.CommPortIdentifier on tomc
Replies: 7
Views: 3673

Re: Could not initialize class gnu.io.CommPortIdentifier on

It is likely that you have to add the additional java library path the web application server (e.g. jetty or tomcat ).

For Jetty

Edit either :

/etc/default/jetty
or
/etc/init.d/jetty

and you are looking at the JAVA_OPTIONS section.

For Tomcat:

This answer on stack overflow might help.
by precious_pony
Wed Mar 04, 2015 2:58 am
Forum: Java
Topic: Java Resources for Absolute Beginners
Replies: 10
Views: 10066

Re: Java Resources for Absolute Beginners

I'm writing this from the perspective of an older (primarily Java) software developer with 17 years experience. I'm just writing this from the perspective of someone with a lot of experience assuming I'm speaking to someone with zero experience so my apologies if I explain the obvious too many times...
by precious_pony
Mon Dec 29, 2014 10:37 pm
Forum: Java
Topic: Headless Raspberry Pi Java IDE for Chromebook?
Replies: 5
Views: 2107

Re: Headless Raspberry Pi Java IDE for Chromebook?

Chromebooks (in their current incarnation) are ideologically flawed machines. They depend upon massively powerful web servers to do their work for them, and communicate over high latency and low efficiency network and inefficient-by-standard software stacks (JavaScript/DOM will always be slow). With...
by precious_pony
Mon Dec 29, 2014 10:24 pm
Forum: Advanced users
Topic: Want to create an auto-install script...
Replies: 2
Views: 4767

Want to create an auto-install script...

Hi, I'd like to create an auto install script that does the following during first boot of the pi: 1) Downloads the latest firmware and bare bones Raspian release. 2) Installs a given set of packages. 3) Sets up a given set of users, and sets up a supplied set of ssh keys. 4) Disables password based...
by precious_pony
Fri Nov 29, 2013 1:13 am
Forum: Raspbian
Topic: Unusual Network Activity
Replies: 22
Views: 3199

Re: Unusual Network Activity

The fact your Win-OS users loose their connectivity is an indication the RPi's have the same addresses. Configure all RPi's to obtain a DHCP address. If the connectivity issues disappear, reconfigure the RPi's again with static addresses, but 100 more (so x.y.z.277 instead of x.y.z.177). Check the ...
by precious_pony
Fri Nov 30, 2012 10:38 pm
Forum: Media centres
Topic: Tutorial: Raspbmc PVR TinyUSB2 DVB-T & TVHeadend All-in-one
Replies: 19
Views: 139727

Re: Tutorial: Raspbmc PVR TinyUSB2 DVB-T & TVHeadend All-in-

Does anyone have any experience with the ClimaxDigital DTV395 card?

I tried and failed to set up the card for Linux (working on my power hungry Windows PC).
by precious_pony
Sun Nov 25, 2012 12:50 pm
Forum: General discussion
Topic: Easiest method of adding a beeper to the Pi
Replies: 13
Views: 18406

Re: Easiest method of adding a beeper to the Pi

Thanks for all the suggestions and links. In the end, I followed the simple approach and used some old USB-powered speakers: http://www.amazon.co.uk/AIO-3-5mm-Channel-Multimedia-Speakers/dp/B0079JDHLE I was worried that there may not be enough juice in the USB sockets for the alarm to be loud enough...
by precious_pony
Fri Nov 23, 2012 2:30 am
Forum: General discussion
Topic: Easiest method of adding a beeper to the Pi
Replies: 13
Views: 18406

Easiest method of adding a beeper to the Pi

Hello, I'm a software guy really, and electronics has always confused me, so I thought I'd ask in here about the possibility of adding a beeper to the raspberry pi via GPIO. I have a couple of Pi's, one 512MB, and one 256MB. My 256MB is running some custom-written monitoring software, and upon the t...
by precious_pony
Wed Oct 24, 2012 6:14 pm
Forum: Android
Topic: Could someone from Broadcom post here on GPU support ?
Replies: 14
Views: 6966

Re: Could someone from Broadcom post here on GPU support ?

Key Lime Pi, here we come.
by precious_pony
Mon Oct 22, 2012 2:03 pm
Forum: Gaming
Topic: Atari 2600 Pi Project
Replies: 23
Views: 16939

Re: Atari Pi Project

Great thread.
by precious_pony
Mon Oct 22, 2012 1:58 pm
Forum: General discussion
Topic: New firmware fails with long FAT filenames
Replies: 16
Views: 2818

Re: New firmware fails with long FAT filenames

So, after deleting all files from the boot partition, then copying the new firmware files to the boot partition via the 'copy' command (Windows 7), its all booting up, BUT, I have confirmed that the new firmware does not work with the softfloat version of wheezy ('startx' brings up desktop but mouse...
by precious_pony
Mon Oct 22, 2012 12:24 am
Forum: General discussion
Topic: New firmware fails with long FAT filenames
Replies: 16
Views: 2818

Re: New firmware fails with long FAT filenames

.. tales from the bleeding edge. Well, I had the same problem when copying the files from Windows via drag and drop (over the originals) but have now been able to get both my 512MB and 256MB Pis booting by storing the boot partition files in a folder on Windows, cd <<folder with boot files >> then c...
by precious_pony
Wed Sep 26, 2012 4:15 pm
Forum: Gaming
Topic: Porting the 'XPort' emulator ports to Pi
Replies: 2
Views: 2995

Re: Porting the 'XPort' emulator ports to Pi

Xbox was x86 whereas raspberry pi is ARM. There are many ARM optimized emulator (Android, Gpxx, Pandora...) which should be better candidates. Yes, XBox was x86, but the majority of XPort emulators are implemented in C/C++ with references to DirectX via wrapper classes (which could be remapped to O...
by precious_pony
Wed Sep 26, 2012 4:09 pm
Forum: Troubleshooting
Topic: Compilation problem with /lib/modules/3.2.27+/build
Replies: 8
Views: 5239

Re: Compilation problem with /lib/modules/3.2.27+/build

So have you downloaded the kernel source to build against? I can build the drivers I require, but I think that building the entire kernel is beyond my skill level at this point in time. What I really require is a package (installed via apt-install ....) such as "linux-headers-3.2.0-3-rpi" - but for...
by precious_pony
Fri Sep 21, 2012 3:51 pm
Forum: Gaming
Topic: New dedicated category for Games?
Replies: 22
Views: 3878

Re: New dedicated category for Games?

Agree
by precious_pony
Fri Sep 21, 2012 3:35 pm
Forum: Gaming
Topic: Porting the 'XPort' emulator ports to Pi
Replies: 2
Views: 2995

Porting the 'XPort' emulator ports to Pi

I wonder if anyone has though to try to port the XPort emulator ports to the Pi. The XPort emulator ports were originally built for the original XBox so all the platform bindings require work, and the ports assume XBox controller mappings (but the Pi port could assume an XBox 360 USB controller). Th...
by precious_pony
Mon Jul 02, 2012 1:07 am
Forum: General discussion
Topic: HDMI CEC and XBMC
Replies: 98
Views: 182217

Re: HDMI CEC and XBMC

I have managed to create a rpi-cecd compatible with the Samsung (e.g. pause/play/stop working)
Check: http://forum.stmlabs.com/showthread.php?tid=443&page=10
This is excellent news. Any chance of an full SD image with the patch applied?
by precious_pony
Mon Jun 25, 2012 4:26 pm
Forum: Python
Topic: Remember Monkey Island?
Replies: 9
Views: 3319

Re: Remember Monkey Island?

Hate to be a party pooper, but ... this type of game is simply too large for a hobby project (dozens of backgrounds, music, programming, sprites, story). The original game had a team of over a dozen people working on it for a year (full-time). Even assuming we are all as talented as the original tea...
by precious_pony
Sun Jun 24, 2012 12:17 am
Forum: Beginners
Topic: Safe SSH access to Pi over internet
Replies: 25
Views: 60720

Re: Safe SSH access to Pi over internet

I've followed the instructions in this thread and I've managed to get a private/public key pair running, disabled password authentication (after testing the generated keys), and have set up forwarding rules on my router (changed to a high port up from port 22 to reduce noise from port scanners). See...
by precious_pony
Sat Jun 23, 2012 12:47 pm
Forum: Beginners
Topic: Safe SSH access to Pi over internet
Replies: 25
Views: 60720

Safe SSH access to Pi over internet

Hi, I set up SSH access as per instructions in the boot partition readme files, and I can gain SSH access successfully to my PI from other computers on my LAN. I am quite familiar with routers and forwarding rules, so this is not a question regarding port forwarding. I would like to ask what is the ...
by precious_pony
Fri Jun 22, 2012 12:53 pm
Forum: C/C++
Topic: Recommeded C++ dev environment ?
Replies: 108
Views: 78905

Re: Recommeded C++ dev environment ?

I understand the argument that in education, that students should learn the fundamentals first, and the fundamentals do not require an IDE. That said, once a program goes about a certain size, not using an IDE is a huge cost to productivity. IDEs give instant feedback to if you are referencing somet...
by precious_pony
Fri Jun 22, 2012 12:13 am
Forum: Beginners
Topic: How do I add a directory to the path so that it persists
Replies: 2
Views: 19375

Re: How do I add a directory to the path so that it persists

Thanks, this totally worked.

I'm using my Raspberry Pi as a standalone Linux server, connecting via PuTTY. Excellent for tinkering with Linux from a safe distance.

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