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Raspberry Pi 4

raspberrypi.org

41–50 of 859 posts

Re: Raspberry Pi 4

#41
Desktop performance my behind. What's the point of all that CPU power when IO performance remains in mid 2000s territory? It takes forever to boot, any time disk access occurs everything crawls to a halt. M.2 has been around for 5+ years now and would have easily fit on this design in its short length form factor.

No datasheet for the SoC either. Again.

There are vastly better SBCs out there.

Re: Raspberry Pi 4

#43
post #37
post #17

>Are you still using VideoCore? >Yes. VideoCore 3D is the only publicly documented 3D graphics core for ARM‑based SoCs, and we want to make Raspberry Pi more open over time, not less. This stated intention and rpi.org's actions are simply not isomorphic. If they want to make Raspberry Pi more open, firstly, why do they publish only abridged (read: fake) schematics? [1] Secondly, why was rpi.org caught adding DRM chip…

1) They make a low cost computer where they've put significant work into making it more open software wise. Their revenue stream is through the sale of their hardware, why do they need to allow people to make clones? 2) Maybe it's to do with the terms in which they get the camera module? I don't know but I don't see them selling the camera as interoperable. Your comment just seems to exemplify the phrase: "No good de…

Other SBC makers don't have an issue offering full schematics, yet, due to their smaller size, have relatively more to lose from being cloned. Moreover, I hope nobody believes that a lack of full schematics is going to stop people from making clones. Schematics can be reversed with not too much effort. Due to their large audience and brand recognition, rpi actually has less to fear from clones than smaller SBC vendors.

If anything, it seems like they've judged that their large size and brand recognition is something that they can coast on to avoid having to offer what other SBC vendors do.

I'm not complaining about rpi existing, I'm pointing out that what they offer is in certain aspects inferior to the offerings of smaller SBC vendors, which is actually surprising, given that their large size should make them much better resourced to match or exceed the offerings of those vendors. This causes me to question whether these values are actually a priority at all, even if they claim so.

Re: Raspberry Pi 4

#44
post #41

Desktop performance my behind. What's the point of all that CPU power when IO performance remains in mid 2000s territory? It takes forever to boot, any time disk access occurs everything crawls to a halt. M.2 has been around for 5+ years now and would have easily fit on this design in its short length form factor. No datasheet for the SoC either. Again. There are vastly better SBCs out there.

> There are vastly better SBCs out there.

Can you provide some examples please?

Always keen to try out any alternatives

Re: Raspberry Pi 4

#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 USB 3.0 but has "oldschool" SATA through an internal USB-2-SATA adapter. It's at least more compact, otherwise the RPi4 with an external USB 3.0 drive will probably work even better.

- works with a normal 12V power supply, which could be lying around already, from older external drives.

Not to disrespect the RPi4, as I'll be getting one of them too very soon.

Re: Raspberry Pi 4

#47

My first reaction to the specs: Pros: + USB 3: Very nice! Finally a pocket-sized, fast USB host. + Dual HDMI: Could be useful as a projector computer. + 1.5 GHz: Good, it might be fast enough for some real work. + Gigabit Ethernet: Excellent for those using it as a NAS. + USB-C for power: Not surprising, it's the standard now. Cons: - MicroHDMI: Incompatible with the 800x480 HDMI 3.5" screen [1]. Also different again…

Con for me is still SD storage :-( At least now an SSD over USB3 should be reasonably fast

How about a RAMDisk?

https://hackaday.com/2019/04/08/give-your-raspberry-pi-sd-ca...

Re: Raspberry Pi 4

#48
post #41

Desktop performance my behind. What's the point of all that CPU power when IO performance remains in mid 2000s territory? It takes forever to boot, any time disk access occurs everything crawls to a halt. M.2 has been around for 5+ years now and would have easily fit on this design in its short length form factor. No datasheet for the SoC either. Again. There are vastly better SBCs out there.

> There are vastly better SBCs out there.

Which ones would you recommend for this price?

Re: Raspberry Pi 4

#50
I wish there were some improvements in the I/O aspect of the board. Having tried to use an RPi for a small automation project, I felt limited by the single ADC input and single PWM output. I was faced with using an Arduino daughter board to do the actual IO or going with a BeagleBoard.
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