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Raspberry Pi 4

raspberrypi.org

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Re: Raspberry Pi 4

#531

Post by lossolo »

Medox wrote: post #46

Depending on the purpose, for example if somebody just wants a compact home cloud, the Odroid HC2 could also - still - be considered: https://www.hardkernel.com/shop/odroid-hc2-home-cloud-two/ - Half the RAM but double the cores. I'm waiting for some benchmarks to see if the RPi4 is faster and by how much. - Also Gigabit Ethernet and it works great. My downloads are always at 108-111MB/s for the whole transfer. - Not…

I had ODROID C2, I don't know how things are now but I've returned mine as it hanged a lot and had lots of different issues. At same time I had 2x Raspberry Pi and it worked fine. This was couple of years ago.

Re: Raspberry Pi 4

#532

Post by opencl »

Zenst wrote: post #452
opencl wrote: post #422

Earlier quoted context omitted.

Going by the "3x faster than Pi 3" claim it should be roughly on par with desktop CPUs from around 10 years ago (Core 2 Quad Q6600, Athlon II X4 600e) or the modern quad core Atom CPUs like say the x7-Z8750.

Rocking a Core2 duo 6600 for the past 11 years, so I'll let you know as that is what it will be replaced with. Been looking at a ARM solution for while, whilst the current 3b+ are good, the ram limitation and IO speeds as well as just short on some graphics grunt, did limit what they could do. Whilst no SATA, the USB3 should be enough and the boost in memory alone, makes desktop replacement utterly viable. But there…

Geekbench puts the Q6600 and existing A72 SoCs (that are clocked a bit higher than the Pi 4) directly on par at ~1500 single core score but it would certainly be interesting to see some detailed real world benchmarking between them.

Re: Raspberry Pi 4

#533

Post by vardump »

megous wrote: post #516
vardump wrote: post #229

Earlier quoted context omitted.

Clock for clock, A72 is 2-4x faster than A53. But yeah, perhaps it's better to have a lot of small cores for a cluster.

That's great, but if you need crypto (because you have LUKS storage and send AES encrypted data over the network, like in a usual NAS case), A53 with aes instructions may be faster than this A72 without one. And so far it seems these cores don't have aes instructions.

Seriously? They left out Cryptography Extensions from the RPi4 SoC? Any source / references?

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc....

Edit: Ouch if this turns out to be true... https://www.raspberrypi.org/forums/viewtopic.php?t=243410

Edit 2: Ah, also RPi3B and 3B+ didn't have those extensions. Oh well.

Edit 3: Just tested my bog standard RPi3B+ running Raspbian. It could do "openssl speed -elapsed aes-256-cbc" 43 MB/s AES-256-CBC. Tried also with "-multi 4" and it resulted 144 MB/s using all 4 cores. So perhaps RPi4 will be fast enough with CPU only crypto... would still love to have HW assist.

Edit 4: RPi4 running 32-bit OS can do about 65 MB/s per core aes-256-cbc. 85 MB/s per core for aes-128-cbc. So by using two CPU cores for encryption (+ heatsink + fan :-)) 1 Gbps ethernet can be saturated.

Re: Raspberry Pi 4

#534

Post by agumonkey »

atonse wrote: post #505
agumonkey wrote: post #376

Earlier quoted context omitted.

shh don't tell all our secrets

I'm just laughing so hard at this thread. I also have a drawer, but with a bunch of Sonoff Home Automation devices. I promise I'll activate them one day! My wife doesn't have a clever name, but instead of usually rolling her eyes at yet another unfinished project, she loves this particular drawer because it's perfectly (and neatly) organized, like the best of unused item drawers.

There's a collecting factor to it too.

Re: Raspberry Pi 4

#535

Post by marcani »

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

How hot does it get when in idle and how hot after about 10 min full cpu load? What are the prospects on overclocking?

Re: Raspberry Pi 4

#536

Post by benj111 »

Y_Y wrote: post #231
elliotpage wrote: post #185

Can't wait to buy this, boot it up, play with it for four hours, then stick it in the same desk drawer with the other Pis I have bought over the years. (The upgrades look great, just my attention span is not so great)

Don't forget to keep it powered while it's in the drawer so you could ssh and build something really awesome. Maybe it's a personality flaw, but I get plenty of satisfaction from just reading blog write-ups if things I could have done with my tech junk, without all the associated time invested. It's much easier to vicariously enjoy projects like these, which is why I think drawer-dwelling is an inevitable destiny for…

"Maybe it's a personality flaw"

I'm sure it's a 'flaw' that most of us have.

I also like getting grand plans for a (hardware) project, ordering the parts from Ali express, then losing interest before the parts have arrived, so they still end up in 'the drawer'.

Re: Raspberry Pi 4

#537

Post by fulafel »

megous wrote: post #516
vardump wrote: post #229

Earlier quoted context omitted.

Clock for clock, A72 is 2-4x faster than A53. But yeah, perhaps it's better to have a lot of small cores for a cluster.

That's great, but if you need crypto (because you have LUKS storage and send AES encrypted data over the network, like in a usual NAS case), A53 with aes instructions may be faster than this A72 without one. And so far it seems these cores don't have aes instructions.

Maybe. It has a lot of CPU power relative to IO bandwidth, it should do ok in pure software.

Hmm, anyone know if the VideoCore VI would be any good for crypto?

Re: Raspberry Pi 4

#538

Post by blihp »

mmsimanga wrote: post #444
elliotpage wrote: post #185

Can't wait to buy this, boot it up, play with it for four hours, then stick it in the same desk drawer with the other Pis I have bought over the years. (The upgrades look great, just my attention span is not so great)

I have to confess that I have never even booted up my Pi-3. Now I wonder if it is worth booting up the Pi-3 or should I wait till I get my hands on the Pi-4. That way I don't have to think of upgrading.

The Pi 3 is no less usable than it was before the announcement. Why bother getting a Pi 4 when you haven't found a use for your 3 yet? I still use a Pi 2 with no complaints.

One downside to the 4 is that it is moving from the low power to laptop realm in terms of power consumption which was my main interest in them. If top performance is what you care about, the Raspberry Pi is the wrong place to go looking for it.

Re: Raspberry Pi 4

#539

Post by Falcorian »

IE6 wrote: post #479
franky47 wrote: post #189

Earlier quoted context omitted.

I can relate. However these days I have found a new life for those abandoned Pis: I install Pi-Hole [1] on them and set them up for family and close friends. [1] https://pi-hole.net/

I wish pi-hole was just a tiny bit more polished. I found it takes a lot of work (and knowledge of linux networking) to get up and running properly and stable.

I've run into the same. It often would come back from a reboot without DNS restarted correctly. I never went through a Pi Hole update without having to manually fix things either.

A few weeks ago I switched to Ad Guard Home. Has been rock solid since. The big dancehaus it doesn't support the exact same filter files.

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