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by pica200
Fri Aug 16, 2019 6:40 pm
Forum: General discussion
Topic: Positives of the Official Raspberry 4B Youtube video.
Replies: 14
Views: 2099

Re: Positives of the Official Raspberry 4B Youtube video.

I don't think anything higher 4 GB is worth the effort. 4 is plenty even for power users.
by pica200
Fri Aug 16, 2019 3:05 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

I dunno. It's of course good practice but personally i'm not securing my local network much (apart from the strongest wireless encryption standard my router supports disallowing any outdated/insecure ones duh). But i care a lot about secure connections to everything outside my home and the trend goe...
by pica200
Fri Aug 16, 2019 1:57 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

It may have something to do with export restrictions for devices which have encryption hardware. But it does that even without hardware acceleration so where is the point restricting it any more than without? I'm wondering who are all these people that need 100 megabytes per second in or out of the...
by pica200
Fri Aug 16, 2019 1:16 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

Charging extra for something that most people won't even notice is pointless. The numbers tell a different story. I think quite a few people will notice how it doesn't reach the advertised 1 Gbit/s because it is now CPU bound resulting from saving money at the wrong end. This also results in much h...
by pica200
Fri Aug 16, 2019 12:48 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

There was a different thread where someone complained about poor SSH speed and i pointed out how the crypto extensions would have made a difference but apparently the userbase was not worth the few cents more per SoC. I would have happily paid 1€ more for hardware AES and SHA1/2. The A72 can do soft...
by pica200
Tue Aug 13, 2019 12:50 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

This highlights how it's very important to generate 32-bit code with the -mcpu arg (in jahboater's comment on the first page) for these sorts of comparison experiments. -mcpu makes more significant changes compared to -mtune because it's allowed to break compatibility. Once I added -mcpu=cortex-a72...
by pica200
Mon Aug 12, 2019 3:26 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 42760

Re: Pi4 as Desktop computer

RPF/T care very much, that's why they give you an optimized Browser called Chromium. If you don't like that, that's your personal preference. I don't like Chromium either, but I won't cry about not having Firefox porper either, I'm happy with ESR. I'm not trusting Chromium at all even if claims not...
by pica200
Mon Aug 12, 2019 1:00 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 42760

Re: Pi4 as Desktop computer

And that is entirely your choice. We provide Chromium (not, this is Chrome with all the tracking taken out) with our own mods to make it more performant. We do not do that with Firefox. So what i'm getting from this is the RPiF/T doesn't care? That's rather disappointing. This may sound like #first...
by pica200
Mon Aug 12, 2019 6:23 am
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

Still, its to small difference for the human eye to see (if i understood the numbers correct.) We´re dealing with hundredths of a second in difference in some cases You don't care for these hundreds of a second but it does add up especially since there is more running than just a single software/pr...
by pica200
Mon Aug 12, 2019 5:53 am
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

By "supported" I guess I meant there's some care not to break it, but yeah Firefox proper builds are not supported on Debian. Bummer. I guess i only have these 3 options: compile myself, use the workaround or use ESR. The above three cases are Debian aarch64 chroot, Debian armhf chroot, a...
by pica200
Mon Aug 12, 2019 12:58 am
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

Firefox armhf is supported on Buster though. See installation instructions . What happened with Stretch is that we had two years of darkness due to an armhf-specific regression (AAPCS) in gcc 5. Things are hopefully going to be okay on every FF release for the next two years until Debian Bullseye (...
by pica200
Mon Aug 12, 2019 12:47 am
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 42760

Re: Pi4 as Desktop computer

If you have to compile common software like Firefox yourself i don't quite think that's the desktop experience (unless you are a Gentoo user). You have to do that every update. There is Chromium as said but i would rather not support their monopoly.
by pica200
Sun Aug 11, 2019 7:29 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 42760

Re: Pi4 as Desktop computer

Sorry for a bit of offtopic but i wanna clarify this: I did a test now regarding mem usage. Opened the exact same project and files in both ST3 and VSC and both have very similar settings and plugins + the same theme. After opening them both and doing nothing ST3 takes 123.5 MiB and VSC 125.1 MiB. V...
by pica200
Sun Aug 11, 2019 5:41 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 42760

Re: Pi4 as Desktop computer

I often use Sublime Text 3 for projects i'm working on. That will probably not get a port to AArch32 (and even AArch64 is questionable). I probably could live with VSCode since i already played with it a bit. It's just slower because electron bloat and on my i7 machine it eats freaking 1.9 GiB RAM f...
by pica200
Sun Aug 11, 2019 2:42 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

I'm not saying the opposite either that 64 bit is always better. It isn't but crypto, compression and similar things which are part of day to day use (under the hood since a lot of software uses them) sees better results. Yes, there is a disadvantage in that memory usage increases a bit because of 6...
by pica200
Sun Aug 11, 2019 11:31 am
Forum: General discussion
Topic: Are there any disadvantages of using a microsd card above 32GB on the Pi 4?
Replies: 5
Views: 737

Re: Are there any disadvantages of using a microsd card above 32GB on the Pi 4?

I use 64 GB aswell. Gives the card much more headroom for wear leveling even if i will never fill it up. I was actually shocked how cheap 64 GB has become. Another thing you can do is enable TRIM in /etc/fstab and then run a "sudo fstrim -a -v" once. This actually increased the speed of my...
by pica200
Sun Aug 11, 2019 11:22 am
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 273
Views: 44993

Re: Why moving to 64bit?

There you have it. 64 bit does have advantages even for a few rather normal tasks (not edge cases like a few people think). You would probably see a even bigger difference if that backup would be encrypted since the AArch64 instruction set can cope better with AES ;)
by pica200
Sat Aug 10, 2019 4:12 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 947
Views: 187018

Re: Raspberry Pi 4 Thread - general discussion

I have not tried without the case but with the crap thermal pad supplied with the case it was 49-51°C idle and 78-80 with cpuburna53. After replacing it's now 46-47 idle and max 68 under load. I would probably see the same 51-55°C without anything and throttling under heavier load. I know the ground...
by pica200
Sat Aug 10, 2019 1:48 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 947
Views: 187018

Re: Raspberry Pi 4 Thread - general discussion

This is not true. The throttling ensures that temperatures that will damage to Pi do not occur. And the temperature at which they will damage enough to cause a life time problem - over 120degs..... I use a Pi4, no case, no fan, no heatsink. Works fine for my use case. Doesn't throttle. It was a jok...
by pica200
Sat Aug 10, 2019 1:23 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 947
Views: 187018

Re: Raspberry Pi 4 Thread - general discussion

You might get slower performance, but you won't get burned Pi(e) :roll: Fine, let's agree on cooked Pi(e) :P It was a joke in case you did not get it ;) edit: Check for throttling with: vcgencmd get_throttled after running a typical workload. If it says 0x0 then you have had no thermal problems or ...
by pica200
Sat Aug 10, 2019 9:31 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 947
Views: 187018

Re: Raspberry Pi 4 Thread - general discussion

No, you don't have to use fans but they are needed if you don't want burned Pi(e) :P More heat average means less lifetime so it's a good investment having any form of extra cooling. A heatsink case will do too. No case at all works but you will definitely reach throttling temps with that if you hav...
by pica200
Fri Aug 09, 2019 6:36 pm
Forum: General discussion
Topic: Pi4 Cooling
Replies: 116
Views: 19042

Re: Pi4 Cooling

Yeah, ideed. One side was covered in this nasty adhesive. That took a bit to get off the SoC even with 99.9% isopropyl alcohol. The Arctic pads are really good and you get a whole mat of 145x145mm for like 10€. Probably gonna overclock a little bit later but then i need to get a fan since it will su...
by pica200
Fri Aug 09, 2019 5:37 pm
Forum: General discussion
Topic: Pi4 Cooling
Replies: 116
Views: 19042

Re: Pi4 Cooling

I have done some testing with this case: https://www.ebay.de/itm/New-CNC-Aluminum-Radiator-Protective-Case-Enclosure-Heat-sink-for-Raspberry-Pi-4/392321943875 With included thermal Pad and no fan it reaches 78-80°C. Got Arctic Thermal Pads in the mail and replaced the old one and boy does it make a ...
by pica200
Thu Aug 08, 2019 12:52 pm
Forum: Troubleshooting
Topic: RPi 4 unable to connect to WiFi [solved]
Replies: 56
Views: 99333

Re: [solved] RPi 4 unable to connect to WiFi

That's strange. The only cause i can think of is noise from HDMI but the ports are far away from the WiFi + BT chip/antenna, the later is shielded and HDMI is probably not quite in the same frequency range. Maybe a RPi engineer has an explanation for this? I could not observe this behavior at all wi...
by pica200
Wed Aug 07, 2019 11:42 pm
Forum: Advanced users
Topic: [Tutorial] Hardening/Securing RPi against cold boot attacks
Replies: 11
Views: 2649

Re: [Tutorial] Hardening/Securing RPi against cold boot attacks

This is some firstclass snake oil content :D There is no way to truely secure a machine if the attacker has physical access to it and the RPi is not made with security in mind. No chain of trust (easily removeable boot media with unencrypted and unsigned bootloader) and no TrustZone so basically 0 p...

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