Raspbian* apparently. That's really interesting; even the highest tier Raspberry Pi still feels pretty sluggish as a desktop thanks to the limitations of SD card throughput/latency/queue depth/etc. I wonder what his usage looks like.
I think the foundation’s pressures are similar to Apple’s pressure to upsell their paid service all over the UI. That’s what I resent about Apple; it’s enshittification like with EBay, Amazon and even Google bugging me to sign in to make searches.
My Raspberry Pi's are just unusable for anything other than as high-level embedded platforms. I've started selling them off, only keeping one or two for embedded use cases.
https://alexellisuk.medium.com/upgrade-your-raspberry-pi-4-w...
>Interestingly, the SD card gave a seemingly better buffered disk read than the M2 SATA SSD at 43.35 MB/sec
https://raspberrytips.com/raspberry-pi-usb-vs-sd/ says their SD card latency was 1.15x the USB disk.
Note that the sample size is just 1, so I wouldn't place value on any single benchmark (it could just be that they chose their USB disk and SD card poorly or it was too cloudy that day). This is evident in my URL's hdparm result being wildly different from yours.
What you say is true but you didn't respond to someone complaining about ram latencies, you responded to someone lamenting poor disk access perf. And you recommended booting off SSD which is demonstrably specious advice.
Booting the Pi 4 off a quality USB-connected SSD to address stability and performance concerns is really good - and normally not controversial - advice. You're betraying a lack of familiarity with the subject matter here. The Raspberry Pi people provide a whole forum where people can discuss this, and other, stuff and educate one another.
Yes the storage performance isn't perfect.
It's fine.
(in my memory the problem was more with running the display itself in 4k and trying to get a full frame rate out of it, but I think the advice still holds - 1080p videos on a 1080p or 2K display shouldn't be any sort of major challenge)
Again, it doesn't matter. Real people in the real world aren't performance tweakers.
Oh no! Someone on the internet suggested someone do something that isn't optimal to performance! Wow better go on a multi reply freak out about it!
I measured apt upgrades in multiple minutes on the Pi 3B. And forget about doing anything else; the system would hang hard until I/O was cleared.
By contrast, upgrading my desktop tower from HDD to SSD was an incredible, dramatic speedup in terms of booting and especially apt upgrades. The latter became nearly instantaneous. Blink and you miss them.
Now, on the Pi I use only the heavy-duty brand-name sdcards. I have found that the weak ones tend to suffer badly from ESD. I am not sure how much lower performance is from the heavy-duty cards, but I doubt it is much slower than the fragile ones.
[0]: https://dietpi.com/
Sorry about that :(