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by Fidelius
Fri Mar 04, 2016 10:45 am
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 205315

Re: hardinfo benchmarks for RPi3 anyone?

can anyone provide the hardinfo benchmarks for RPi 3 (Blowfish - CryptoHash - Fibonacci - N-Queens - FFT - Raytracing)? Here they are: -CPU Blowfish- This Machine Unknown MHz 42.120 Intel(R) Celeron(R) M processor 1.50GHz 26.1876862 PowerPC 740/750 (280.00MHz) 172.816713 -CPU CryptoHash- This Machi...
by Fidelius
Fri Mar 04, 2016 10:04 am
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 205315

Re: The Raspberry Pi 3 Model B Q&A thread

Anyone else having reboot issues after getting the latest firmware update via sudo rpi-update? I ave tried latest version of firmware with a clean install on 2 Pi3s and both are failing to reboot after the update appearing to indicate SD card removed. Yes, same here, when I did a "rpi-update" this ...
by Fidelius
Fri Mar 04, 2016 9:24 am
Forum: General discussion
Topic: How to disable the Pi3's WLAN & Bluetooth ?
Replies: 15
Views: 168860

How to disable the Pi3's WLAN & Bluetooth ?

When on 29th February 2016 Mr. Upton made the nice Pi3 anouncement , in the posts below the announcement, a user asked if the Wifi and Bluetooth features of the Pi3 could be disabled. Mrs. Upton kindly answered: You can turn Bluetooth and WiFi off – we’ll make sure there’s an easy interface for you ...
by Fidelius
Fri Mar 04, 2016 9:01 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

Ssvb, very interesting things you tell! The Pi3's ARM8 Cortex-A53 really starts to fascinate me. I wouldn't have imagined 20 years ago when we hand-coded the ARM2,3,6 and StrongARM in our Acorn Archimedes'es, that one day we would have such a "beast" under our fingers – let alone taking the size of ...
by Fidelius
Fri Mar 04, 2016 7:53 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

As we can see, the "minerd" application is roughly twice more power hungry than your "stress" application. And this is a reasonably realistic workload (just one example of a decently NEON optimized code). The users may encounter such workloads in the wild. The "cpuburn-a53" application is roughly t...
by Fidelius
Fri Mar 04, 2016 7:39 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

with the increase in heat and associated power waste. So my question is, can I UNDER clock the Pi3, maybe take it down to 900 or 1000, is there a downside to this apart from a slight performance drop? You mean underclock constantly, I suppose. Then I don't know the answer. When in idle mode, i.e. w...
by Fidelius
Fri Mar 04, 2016 7:31 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

Wait.. so even with a heatsink it won't run at 1200 mhz under full load? Yes, when the Pi is inside a case like my Pi2 Aukru case, which I linked to a few posts earlier . My Pi2 case included a simple aluminum heatsink having the same size as the Broadcom ARM/GPU/RAM chip and isn't needed with a Pi...
by Fidelius
Fri Mar 04, 2016 5:15 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

Whats the point with a 1200 Mhz clockspeed if it can only maintain it a few minutes? Yes, this behavior is new for us Pi users. So far with our Pi1 and Pi2 we never needed to worry about any overheating. So it's indeed a bit disappointing when you intend to use the Pi3 inside a case – you won't be ...
by Fidelius
Thu Mar 03, 2016 2:04 pm
Forum: General discussion
Topic: Moving from Pi 2 to 3 using same image
Replies: 5
Views: 1945

Re: Moving from Pi 2 to 3 using same image

sudo apt-get update && sudo apt-get dist-upgrade This also works with Ubuntu Mate for the Pi, plus a sudo rpi-update ... because this way Ubuntu for the Pi fetches the Foundation's newest Raspbian kernel + firmware. In the end you can happily exchange the µSD-card between the Pi2 and Pi3. That's gr...
by Fidelius
Thu Mar 03, 2016 11:24 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

In the other similar thread ( Pi 3 Overheating Issue? ) which now links to here, there's an interesting pointer to an article named The Raspberry Pi 3 does not halt and catch fire , stating : Testing two Raspberry Pi 3 boards — the first I received from the Foundation in the run up to Monday’s launc...
by Fidelius
Wed Mar 02, 2016 4:35 pm
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

But in the mean time are the generic ones any good? www.amazon.in Your linked ARM heatsink with a Pi case looks very similar to the heatsink which came with my Pi case (please see my previous post linking to it here in the same thread). In any case James' advice worked for me: Ray tracing is very c...
by Fidelius
Wed Mar 02, 2016 1:25 pm
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

The Pi will start to throttle-back when the temperature sensor reaches 85C, so you will want to avoid getting too close to that figure simply to maintain performance. However there is not going to be any significant danger to the SoC running at that sort of temperature or even consideraby hotter th...
by Fidelius
Wed Mar 02, 2016 1:17 pm
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

Concerning the mentioned difference of 17°/20 °C between the Videocore's temperature sensor near the ARM8, and external heat cameras: Does the Pi3's internal temperature sensor always report a value being 17°/20°C below external sensors? I.e. is it linear, or "only" when the ARM is getting hotter? B...
by Fidelius
Wed Mar 02, 2016 1:04 pm
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

jamesh wrote:Ray tracing is very compute intensive, so I would suggest a heatsink. Use the one you have, it should be fine. The tape *should* transfer the heat.
Thanks for this info, it sounds good. Will do so, in order to keep the ARM8 running at its 1200 MHz also during compute intensive tasks. :-)
by Fidelius
Wed Mar 02, 2016 8:31 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

The official advice is that "you may need a heatsink" for the Pi3, especially in a closed environment running intensive code. So would a heat-sink be advisable when I want to use a Pi3 regularly within our family's Blender network to ray-trace? Meaning the Pi3 doesn't run with a full load all day, ...
by Fidelius
Wed Mar 02, 2016 8:25 am
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 96469

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

Does the Pi3's internal temperature sensor (living in the Videocore I read in this thread) always report 20° C too little? Or "only" when the ARM is hot? Because when I do: > vcgencmd measure_temp on a Pi3 running a lightdm desktop with no big load (i.e. idle mode more or less), it says: ~44° C Whic...
by Fidelius
Tue Mar 01, 2016 3:39 pm
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 205315

Re: The Raspberry Pi 3 Model B Q&A thread

Dear Noggin, thank you for this information. I too can live with it, but just wondered.
by Fidelius
Tue Mar 01, 2016 3:30 pm
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 205315

Re: The Raspberry Pi 3 Model B Q&A thread

When I insert a µ-SD-card into my new Pi3's SD-card slot, it doesn't "click" like it does on the Pi2 when it (the SD-card) snaps-in. Also I can't snap-out the µ-SD-card from the Pi3 like it does on the Pi2 by pressing it (the SD-card) a little bit more, but I have to pull it out from the Pi3's slot....
by Fidelius
Tue Mar 01, 2016 11:09 am
Forum: Bare metal, Assembly language
Topic: RPi 3 kernel8.img?
Replies: 9
Views: 4397

Re: RPi 3 kernel8.img?

jamesh wrote:I'll see if I can find out what the RPF are up to with regards to 64bit.
Thank you, JamesH !
by Fidelius
Mon Feb 29, 2016 8:55 am
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 205315

Re: The Raspberry Pi 3 Model B Q&A thread

Congratulations to the Pi Foundation and all its helpers for this thrilling birthday present. They always manage to amaze us. :-) 1g of ram, 64bit cpu, what is point? more ram eating? Well, so far Raspbian will run in 32-Bit mode, so no more RAM eating compared to a 32-Bit Pi2. Also, it is possible ...
by Fidelius
Mon Feb 15, 2016 10:32 am
Forum: OpenGLES
Topic: Why the obsession with OpenGL?
Replies: 9
Views: 6889

Re: Why the obsession with OpenGL?

I reckon for a first version, this OGL driver is pretty good. Yes, indeed. Even the "acid test" aka Blender worked fine right out of the box. We only created a few smaller models but it worked very fine so far. For an alpha driver indeed! As the OP said, it does resort to SW rendering when there is...
by Fidelius
Mon Feb 15, 2016 10:31 am
Forum: OpenGLES
Topic: Why the obsession with OpenGL?
Replies: 9
Views: 6889

Re: Why the obsession with OpenGL?

I don't think they will ever get them ready. Application sets for Desktop GL and ES are different. The Pi is "odd" because you have a chip designed for mobile applications (hence supporting ES) being used in a desktop environment (which really wants "full" GL). How true. It's another reason why the...
by Fidelius
Mon Feb 15, 2016 8:30 am
Forum: OpenGLES
Topic: Why the obsession with OpenGL?
Replies: 9
Views: 6889

Re: Why the obsession with OpenGL?

OpenGL ES 2.0 has been available on the PI since they start (or soon after). Some of us have even written applications using it ! Peter, thanks for that addition, and indeed I too use OpenGL-ES on the Pi since I got one (mostly via Java's FX which on ARM devices uses OpenGL-ES to do hardware accele...
by Fidelius
Mon Feb 15, 2016 7:36 am
Forum: OpenGLES
Topic: Why the obsession with OpenGL?
Replies: 9
Views: 6889

Re: Why the obsession with OpenGL?

For us here Blender is a "killer app", and according to some first short tests, it works great with the new alpha OpenGL driver on our Pi². Not to mention my wife's "killer app" Tetzle ... ;-) And the desktop's windows are moved, resized etc faster now. Because this new driver provides HW accelerate...
by Fidelius
Wed Feb 10, 2016 2:24 pm
Forum: Other
Topic: Raspbian's alpha OpenGL driver for Ubuntu (Mate) ?
Replies: 1
Views: 1135

Raspbian's alpha OpenGL driver for Ubuntu (Mate) ?

Is it possible to use Raspbian's new alpha OpenGL driver in Ubuntu (Mate) for the Pi2 ? I mean the Ubuntu version offered on the Foundation's download page under "Third party images". It uses Raspbian's Pi2 kernel plus certain Raspbian drivers and raspi-config, and Ubuntu's ARMv7 repository for the ...

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