Sujet : Re: Shutdown - 25 Years Later
De : Pancho.Jones (at) *nospam* protonmail.com (Pancho)
Groupes : comp.os.linux.miscDate : 23. Apr 2025, 12:55:23
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vuakfb$30bf7$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
User-Agent : Mozilla Thunderbird
On 4/22/25 14:29, The Natural Philosopher wrote:
On 22/04/2025 12:38, Pancho wrote:
On 4/22/25 12:13, The Natural Philosopher wrote:
On 22/04/2025 10:27, Carlos E.R. wrote:
On 2025-04-22 11:03, The Natural Philosopher wrote:
On 22/04/2025 09:35, Carlos E.R. wrote:
On 2025-04-21 02:29, Lawrence D'Oliveiro wrote:
On 21 Apr 2025 08:24:22 +1000, Computer Nerd Kev wrote:
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It sounds like they're talking about the cache in the drive itself,
making sure data is physically written out before power-off.
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Unfortunately, you could be right.
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I say “unfortunately“, because I think it’s a dumb idea for drives to have
their own cache.
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Not at all. There is a huge speed improvement.
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The key is to have a large enough capacitor in the drive to flush all those caches on power off.
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Or power off by command, not pulling the cable.
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The reason you pull the cable is
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(i) the electricity company did it for you
(ii) the power off button/command didn't work.
(iii) There was no swap left and you couldn't even log in to issue the shutdown command
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>
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My Orange Pi 5 freezes all the time. I don't know if the power off button is any better than pulling the power cable.
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I have herd several tinmes that orange Pis are not as good as raspberry..
The oPi5 hardware is much better than the rPi5. The oPi5 has 4 extra efficiency cores, the oPi5 RK3588 is 8nm, the rPi5 Broadcom BCM2712 is 16nm. The oPi5 comes with a NVMe socket.
In practice the oPi5 seems faster, and uses about half the power, it will run off a normal(ish) USB power plug.
The problem is the OS (I use Armbian) isn't quite as good a rPi5. Although the oPi5 is getting better and has open source GPU drivers.
For a GUI/Desktop the rPi5 is still a little buggy compared to Intel/AMD Linux. While the rPi/Pi OS is good for a server, I wouldn't recommend either it, or the oPi5, as a desktop, unless you like tinkering.
My perception is that the Aarch64 SoC Linux software is improving. Maybe the next round of devices will truly be mass market desktops.
One thing I have been pondering, is a hardware heartbeat.
A watchdog timer?
Yeah, that is the proper name. I see they do provide a service to force a reboot. Which I guess is what I wanted.
Re: Shutdown - 25 Years Later
Re: Shutdown - 25 Years Later