Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

8GB Raspberry Pi 4 on sale now at $75

raspberrypi.org

Post reply on HN
Print view View original

141–150 of 231 posts

Re: 8GB Raspberry Pi 4 on sale now at $75

#141

Post by excelblue »

CydeWeys wrote: post #137
dcm360 wrote: post #116

Earlier quoted context omitted.

This is a case where you should read with care, and notice the difference between Gb and GB. The chip from 2013 that you mention, has a capacity of 8Gb = 1GB. Chips with a capacity of 16Gb are indeed very common, because manufactures put 8 of them on a RAM-module with a capacity of 16GB.

Hah, that's weird. I can't say I've ever seen memory being quantified in gibibits before! It's always gibibytes. You have to wonder why they deviated from what I thought was a universal custom.

Once you work at the electronic components level, RAM (and EEPROMs, etc.) is often specified in bits instead of bytes.

The custom of using bytes only applies when specifying higher-level computer components.

Re: 8GB Raspberry Pi 4 on sale now at $75

#142

Post by CydeWeys »

NightMKoder wrote: post #22

For folks considering running 64-bit on the pi - I don’t think you need 64-bit userland. I’ve been running a 64-bit kernel on my pi with 32-bit userland perfectly fine. The few things that actually need 64-bit (I’m looking at you mongo) run in 64-bit mode via docker. That said, I’m not 100% sure how much memory overhead I have in this setup vs just running the 64-bit userland. Technically there’s a very interesting “…

Has anyone quantified these performance differences between full 64 bit vs 64 bit OS but 32 bit memory per process?

At 8 GiB RAM, allowing a single process to "only" use half of the available RAM really doesn't seem too limiting for most workflows. Especially considering that there's 4 CPU cores. If it's a notable hassle-free performance improvement it seems like a no-brainer for most use cases.

Re: 8GB Raspberry Pi 4 on sale now at $75

#144

Post by bryanlarsen »

CydeWeys wrote: post #137
dcm360 wrote: post #116

Earlier quoted context omitted.

This is a case where you should read with care, and notice the difference between Gb and GB. The chip from 2013 that you mention, has a capacity of 8Gb = 1GB. Chips with a capacity of 16Gb are indeed very common, because manufactures put 8 of them on a RAM-module with a capacity of 16GB.

Hah, that's weird. I can't say I've ever seen memory being quantified in gibibits before! It's always gibibytes. You have to wonder why they deviated from what I thought was a universal custom.

RAM chips are and have always been measured in kibibits and gibibits since long before those two words existed. RAM modules are measured in gibibytes. In a desktop computer you typically use 8 XGb chips to make a single XGB module.

The confusion comes when you blur the distinction between chips and modules as they do in mobile. They either use single package modules created from multiple chips via 3D die stacking or they use single chip modules.

https://en.wikipedia.org/wiki/Intel_1103

Re: 8GB Raspberry Pi 4 on sale now at $75

#145

Post by mobilio »

youngtaff wrote: post #117
Legogris wrote: post #62

Earlier quoted context omitted.

Like a Rock Pi 4? https://rockpi.org/rockpi4

Unfortunately POE is still external on the Rock Pi 4 A carrier board for Compute Module with just POE / ethernet, USB ports and and SD card slot would be good enough too I literally want same form factor as the Ubiquiti board but with open source support, and sufficient power to charge a phone from the USB port Orange Pi Zero is along the right lines but doesn't have enough RAM for my needs and I'm unsure about the p…

I'm OPiZ huge fan!

But 256MB limitation is killing me. Other was Wifi performance and reliability (for non LTS version).

Re: 8GB Raspberry Pi 4 on sale now at $75

#146

Post by mojo982 »

imtringued wrote: post #39
dikei wrote: post #6

Earlier quoted context omitted.

FWIW, I'm using the official power supply and have never encounter any power issue.

For some reason people seem to really want to use their $75 Macbook USB chargers instead of just buying the official power supply.

The promise of USB-C is exactly that though. The goal is having one charger and cable for everything.

Re: 8GB Raspberry Pi 4 on sale now at $75

#147

Post by bottled_poe »

vishnumohandas wrote: post #83
bottled_poe wrote: post #72

Earlier quoted context omitted.

When our dev team was just starting out, we ran the business gitlab instance on a raspberry pi 2 model B. It took a few kernel Params to work with only 1GB of RAM, but it got there. His name was Boris and he was the company’s MVP for several years running :)

Questions: 1. What was the highest uptime Boris pulled off? 2. Why did you have to decommission him? Was there an eventual hardware failure? Thanks!

Boris was quite reliable, the only issues we had was when we occasionally ran out of disk space and had to clean up some files... Other than that, he kept quite and solemnly did his work. We actually had a separate CI/CD machine to run gitlab runner jobs.. So, boris just needed to run the gitlab web server. Eventually, once we we had more than a handful of staff, we moved to more substantial hardware. We're now running a multi-node on-premises kubernetes cluster (Boris's big brother is putting in work!). Boris is still functional, but he's retired now. He's now part of the business history to inspire the next generation.

Re: 8GB Raspberry Pi 4 on sale now at $75

#148

Post by bottled_poe »

jgalentine007 wrote: post #109
bottled_poe wrote: post #72

Earlier quoted context omitted.

When our dev team was just starting out, we ran the business gitlab instance on a raspberry pi 2 model B. It took a few kernel Params to work with only 1GB of RAM, but it got there. His name was Boris and he was the company’s MVP for several years running :)

The idea of someone swiping it and literally walking off with your company in their pocket is a bit funny.

Well... Encryption, backups and the distributed nature of git certainly helps to mitigate those risks.

Re: 8GB Raspberry Pi 4 on sale now at $75

#149

Post by sheepdog »

desikoder wrote: post #132

At this point, I would much rather use any x86 based laptop instead. Their price-to-performance ratio's have significantly increased since the first RPI was introduced and for a 100$, you get a much better package. So, unless the ARM ecosystem grows to allow for pluggable, extensible and better performing solutions than the latest entry-level celeron or ryzen based systems, I am no longer investing into it.

I do find that RPI life comes with a lot of add-on costs. Battery pack, input devices, display, SSD, etc. It does start to add up if you aren't using the RPI in headless mode anchored to a power cable.

However, if price is the #1 concern, it's tough to beat the RPI. I checked Amazon and the cheapest 8GB RAM laptop was $239. Or maybe a used one on eBay for ~$175.

But overall this announcement is very impressive. I foresee the SBC "arms race" heating up. I bought a Jetson Nano thinking it was overkill, but it seems the bar keeps going up...

Re: 8GB Raspberry Pi 4 on sale now at $75

#150

Post by benn_88 »

Mengkudulangsat wrote: post #71

Question from a non-technical person. I've been reading a lot about tiny websites on HN (e.g. https://bearblog.dev ). Can we use these Raspberry Pis to host them? Are they performant enough? Is setting things up newbie-friendly? Having your own little corner on the internet that no one can shut down sounds pretty cool.

I host a static website on a Raspberry Pi 3 and it's been running very well for about 3 years. It's static HTML and it also serves files. It's hosted by a provider with a "Pi Cloud". https://www.mythic-beasts.com/order/rpi

The website is https://www.piwheels.org - it's a Python package repository for Raspberry Pi users

It's served over 20M downloads, which is 70TB. Currently serving 1.2M downloads a month (4.4TB).

A cheap VPS would be easier, better and about the same price. But piwheels is a bit of a dogfooding project. But it works!

Post reply on HN