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by clicky
Sat Jul 25, 2020 9:55 pm
Forum: General discussion
Topic: What to do with rpi 1 B in 2020?
Replies: 15
Views: 1289

Re: What to do with rpi 1 B in 2020?

I still have Pi1 sitting next to 3D printer and acting as some kind of glorified USB extender: running Java process (on the latest Raspberry Pi OS) which proxies TCP traffic to USB port (special version of jsse on client side and normal on Pi side). Also, at the same time it runs python script which...
by clicky
Sat Jul 25, 2020 7:46 pm
Forum: General discussion
Topic: Help Building Raspery Pi OS 64 Kernel
Replies: 2
Views: 317

Help Building Raspery Pi OS 64 Kernel

I've embarked on mission to set up microk8s on tiny Pi4 cluster (1x Pi4 2GB + 2+ x Pi4 4GB workers) and got quite far... but got stuck on provided beta 64bit kernel lacking 'CONFIG_CFS_BANDWIDTH=y' config flag... (it seems to be needed for 'cpu.cfs_period_us' in cgroups) So, it seems that the most s...
by clicky
Sat Jul 25, 2020 2:35 pm
Forum: Troubleshooting
Topic: Problems with cgroups-memory in the kernel
Replies: 4
Views: 1211

Re: Problems with cgroups-memory in the kernel

Bump? Any chance getting some indication has it been resolved or not, yet?
by clicky
Sat Jul 25, 2020 1:20 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 608
Views: 128910

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Hi All, I'm trying out new 64 bit OS released recently. Here is the uname -a output of my Raspberry Pi 4 4GB. Using image with name "2020-05-27-raspios-buster-arm64.zip". Linux raspberrypi 5.4.42-v8+ #1319 SMP PREEMPT Wed May 20 14:18:56 BST 2020 aarch64 GNU/Linux I came across an issue, ...
by clicky
Fri Jul 17, 2020 8:51 am
Forum: Java
Topic: Java Profiling
Replies: 0
Views: 470

Java Profiling

Just a quick reminder of wonderful Java profiling app made by Sun in the day: VisualVM It is supplied with Debian: sudo apt-get install visualvm and it works well with RPi... You can do sampling of CPU or Memory, check for bottlenecks in your code and/or memory issues or leaks... Also, for those who...
by clicky
Tue Jul 14, 2020 7:01 pm
Forum: Other programming languages
Topic: Anyone using Rust on a PI ?
Replies: 259
Views: 39723

Re: Anyone using Rust on a PI ?

Sorry to join in late - but it might help @jahboater with his original question: I've picked up Rust 2 (or so) weeks ago - on Raspberry Pi. I have (headless) program written in Python which was: - reading gyro + accelerometer over i2c - driving motors using GPIOs and PWM (pigpiod) - sending 'telemet...
by clicky
Tue Jul 07, 2020 9:55 am
Forum: Java
Topic: cant get eclipse to start
Replies: 4
Views: 1015

Re: cant get eclipse to start

I'm glad it worked. BTW no need to compile on Pi - just compile it on your laptop/desktop and copy final jar file across...
by clicky
Mon Jul 06, 2020 4:15 pm
Forum: General discussion
Topic: recommendations for graphic programming in rpi?
Replies: 7
Views: 405

Re: recommendations for graphic programming in rpi?

rpiMike wrote:
Mon Jul 06, 2020 3:56 pm
pygame is another
I concur. Pygame is good place to start with.
by clicky
Mon Jul 06, 2020 4:13 pm
Forum: Java
Topic: cant get eclipse to start
Replies: 4
Views: 1015

Re: cant get eclipse to start

I haven't got any success with Eclipse that was supplied with default OS... Version of Eclipse 3.8 is quite old (very, very old - it dates from 2012) and I failed to even compile it (could be me). Around that time Eclipse foundation decided to ditch any support for 32bit OSes, so nothing since that ...
by clicky
Thu Jul 02, 2020 1:27 pm
Forum: Gaming
Topic: Warzone2100
Replies: 5
Views: 695

Re: Warzone2100

Thanks for sharing! By complete coincidence I installed it today (my KDE told me I have new updates - which made me 'discover' app called 'discover' which was loaded to do the updates which made me look at other software provided which made me ended up browsing games which, after forcefully made him...
by clicky
Mon Jun 29, 2020 8:39 am
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

And this seems appropriate time to mention/ask a question of getting openCL for similar for Pi's GPU... I have some doubts it would be able to compete with nVidia's GPU, but it would be nice to have some feel how close they are...
by clicky
Sun Jun 28, 2020 11:10 am
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

... Is it possible to write code like that in Rust in such a way that a mathematician with no experience of coding could read and have some idea what the algorithm used was? Its not good if arcane tweaks are required all the time to get performance. I don't think people who designed Rust had readab...
by clicky
Sun Jun 28, 2020 10:59 am
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

It clearly says there that you are still using the "stable release channel". I don't have a Pi nearby to test on but I tried it on my Jetson Nano which is running 64 bit Ubuntu. ... BUT, I had to remove one test that used SSE instructions. It was horribly complex and slow as hell so good ...
by clicky
Sun Jun 28, 2020 7:30 am
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

Heater wrote:
Sat Jun 27, 2020 7:38 pm
Hmm... how are you guys installing Rust?
I've just done what is written on https://www.rust-lang.org/learn/get-started

- no extras...
by clicky
Sat Jun 27, 2020 7:22 pm
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

Hm. All my rust plays were on Pi4, 8GB on 64bit PiOS (hence Eclipse). Here's what it has done with convolution.tgz: pi@desktop-pi:~/temp/t/convolution (master) $ cargo run --release Downloaded cfg-if v0.1.10 Downloaded lazy_static v1.4.0 Downloaded memoffset v0.5.4 Downloaded proc-macro2 v1.0.18 Dow...
by clicky
Fri Jun 26, 2020 9:44 pm
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

... memory handling of Rust seems just 'standard', well known, common sense stuff... That is a surprising statement to me. I have never seen any other programming language with the approach to memory that Rust has. What with it's rules about multiple aliases to variables, the "borrow checker&q...
by clicky
Fri Jun 26, 2020 6:18 pm
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

I can see so many different concepts meeting in Rust: strong typing; compilation to fast, c-alike low level; functional style and innovative memory handling (at compiler level - memory handling of Rust seems just 'standard', well known, common sense stuff) and such... That functional style code, in ...
by clicky
Fri Jun 26, 2020 3:47 pm
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Re: Eclipse Corrosion (Rust IDE) on RPi

I have never been into Eclipse much. It always seemed so big, slow and complicated when I have had to use it on various projects. But this looks pretty cool. I've lived through rise and fall of Eclipse and how people slated it while alternatives weren't any better... Now, I appreciate it even more ...
by clicky
Fri Jun 26, 2020 3:32 pm
Forum: Raspberry Pi OS
Topic: No Raspberry Pi imager for Raspberry Pi
Replies: 8
Views: 904

Re: No Raspberry Pi imager for Raspberry Pi

BTW I had similar question only a few days ago (but I'm fine to use dd from command line). Anyway - is it worth adding line somewhere on https://www.raspberrypi.org/downloads/ just to avoid further confusion? Re support for ARM: it all boils down to what is really needed. I've sorted out all my cand...
by clicky
Thu Jun 25, 2020 3:17 pm
Forum: Other programming languages
Topic: Eclipse Corrosion (Rust IDE) on RPi
Replies: 53
Views: 3247

Eclipse Corrosion (Rust IDE) on RPi

Given this: https://www.raspberrypi.org/forums/viewtopic.php?f=81&t=276291 and fact I decided to learn rust (programming language) I've set up new instance of Eclipse and installed Eclipse Corrosion directly of marketspace... All seems to be working well including Eclipse familiar debugging and ...
by clicky
Thu Jun 25, 2020 9:15 am
Forum: Java
Topic: LibGDX + Eclipse on RPi with 64bit Raspberry OS
Replies: 2
Views: 906

Re: The LATEST (1.9.11-SNAPSHOT @ 24/6/2020) LibGDX on RPi with 64bit Raspberry OS

Great news: Lwjgl3 is now working on RPi! :D I've updated head of rpi-1.9.11-SNAPSHOT branch (1.9.11.rpi-SNAPSHOT version of gdx artifacts from https://raw.githubusercontent.com/natdan/libgdx/mvn-repo repository - see example project from here: https://github.com/natdan/rpi-libgdx-example) to the la...
by clicky
Wed Jun 24, 2020 11:43 am
Forum: Java
Topic: LibGDX + Eclipse on RPi with 64bit Raspberry OS
Replies: 2
Views: 906

LibGDX + Eclipse on RPi with 64bit Raspberry OS

As title said: I've pushed updates to https://raw.githubusercontent.com/natdan/libgdx/mvn-repo/ What works: https://github.com/natdan/rpi-libgdx-example - JOGL backend - gdx-box2d What should work (that is dependent on native, .so libraries): - gdx-freetypes - gdx-controllers What doesn't work: - gd...
by clicky
Mon Jun 08, 2020 8:50 am
Forum: Java
Topic: Eclipse might be back on Raspberry Pi
Replies: 10
Views: 2442

Re: Eclipse might be back on Raspberry Pi

I've made a short write up what (and how?) I've done here: https://blog.abstracthorizon.org/posts/ ... -64bit-os/

Also, there's (not to be treated as so permanent) link to 64bit eclipse - eclipse-java-2020-03-v1-R-linux-gtk-aarch64.tar.gz
by clicky
Sun Jun 07, 2020 10:57 am
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 608
Views: 128910

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

jsimmonstx wrote:
Sun Jun 07, 2020 10:54 am
Does rpos/64 already have support for boot from usb on the pi4, or do we still have to manually copy special elf/dat files to the boot folder?
No need to copy elf/dat files. 64bit version image boots without issue from USB.
by clicky
Fri Jun 05, 2020 5:04 pm
Forum: Java
Topic: Eclipse might be back on Raspberry Pi
Replies: 10
Views: 2442

Eclipse might be back on Raspberry Pi

https://www.raspberrypi.org/forums/download/file.php?mode=view&id=37597 It is on beta 64bit Raspberry Pi OS and quite a handcrafted version (from the latest available to download for x86_64 + top of the repo builds for aarch substitutes). Let me know if someone else would like to have it - I ca...

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