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Raspberry Pi 4

raspberrypi.org

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Re: Raspberry Pi 4

#141

Post by jonhendry18 »

vardump wrote: post #132
leemailll wrote: post #39

The full specs and benchmark link: https://www.raspberrypi.org/magpi/raspberry-pi-4-specs-bench...

Missing: SD card performance benchmark. Previous models could only read about 20 MB/s or so, while the modern SD cards can do 10x (maybe even more) that. Is there any improvement in this? It's pretty important as RPi usually boots off it.

You can boot off a USB drive.

Re: Raspberry Pi 4

#143

Post by schappim »

I have a Raspberry Pi 4 Model B in front of me and have just run some benchmarks using the Phoronix Test Suite.

TL;DR: Prime CPU test; Pi4B: 60 seconds, Pi3B+, 80 seconds, Render test: Pi4B 27fps at 720p, Pi3B+ 16fps at 720p.

Zips of the test reports:

  http://cdn.littlebird.com.au/rpi4/test-4-b.zip
  http://cdn.littlebird.com.au/rpi4/test-pi-3-b-plus.zip

Re: Raspberry Pi 4

#144

Post by vardump »

schappim wrote: post #143

I have a Raspberry Pi 4 Model B in front of me and have just run some benchmarks using the Phoronix Test Suite. TL;DR: Prime CPU test; Pi4B: 60 seconds, Pi3B+, 80 seconds, Render test: Pi4B 27fps at 720p, Pi3B+ 16fps at 720p. Zips of the test reports: http://cdn.littlebird.com.au/rpi4/test-4-b.zip http://cdn.littlebird.com.au/rpi4/test-pi-3-b-plus.zip

Please run SD card benchmarks, assuming you have a fast card available.

Re: Raspberry Pi 4

#145

Post by Fiahil »

oblio wrote: post #130

Has anyone set up a Kubernetes cluster using several RPIs? How did it go? Got any recommendations for distributions, tools, etc.?

I'm using Rancher's k3s[1] on a Rock64, and it works perfectly. I maxed out the capacity recently and I was looking to add more nodes to my cluster. Looks like the new Rpi 4 would be a good addition !

[1] https://k3s.io/

Re: Raspberry Pi 4

#146

Post by Firerouge »

shams93 wrote: post #97

I'm super excited as well. I figured out the secret sauce to get a low latency kernel build I was able to get down to 20ms latency but I'm excited to see if this can't get down to 10ms even though 20ms is acceptable low audio latency, already with only 1 gig of ram on a pi3 ardour is usable for multitrack recording, excited to see how this does with 4 gigs.

Do you have a write-up on what you did to achieve that low of a latency?

Re: Raspberry Pi 4

#148

Post by stefan_ »

Lerc wrote: post #140
iruoy wrote: post #103

Earlier quoted context omitted.

The Raspberry Pi 4 B uses ARM VideoCore IV. As far as I can find HDR will only come in the updoming VideoCore V. So no. No HDR yet.

The spec table says VideoCore VI. I really hope that is not a typo. I suspect it really is a VC6 because 2x4k is a big bump in pixel count and without a corresponding bump in fill-rate, perceived performance will drop. [edit] looking at the benchmarks it's a modest boost. Now about twice the FPS of a PI-2 for Quake3 at equal resolution. Be interesting to see if something with more complex shaders changes the relative…

The VideoCore 4 (fuck the roman numerals, for exactly this reason) can not output 4k and it is also not a ES 3.0 capable GPU. So this must be a 5 or 6.

Re: Raspberry Pi 4

#150

Post by jonhendry18 »

sercand wrote: post #111

I don't use even one HDMI on RPI why second? Also, it's fricking micro-HDMI why not another TYPE-C?

Maybe use cases like one HDMI hooked up to a large display, and one hooked up to a small display that acts as a control panel UI? Or where one display faces away from the console user?
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