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Raspberry Pi4 announced
Raspberry Pi4 announced
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Old 17th October 2019, 03:52 PM   #91
soundcheck is offline soundcheck  Germany
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FYI.

I just managed to get my ArchLinuxArm RPI4 64bit installation - RPI rt-kernel and userland - going.

Code:
root@boss64:~# cat /proc/device-tree/model
Raspberry Pi 4 Model B Rev 1.1

root@boss64:~# uname -a
Linux boss64 4.19.79-rt25-sc1 #2 SMP PREEMPT RT Mon Oct 14 09:35:28 CEST 2019 aarch64 GNU/Linux

root@boss64:~# file /usr/bin/ls
/usr/bin/ls: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, BuildID[sha1]=d3d0049a9af71d4be7a4dafff7d668b248b75319, for GNU/Linux 3.7.0, stripped
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Old 18th October 2019, 01:39 AM   #92
sangram is offline sangram  India
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I did try xfs but I couldn't get off the ground. I wasn't able to obtain write permissions for the drive after formatting, so I stuck with NTFS.

It's not possible to have 20TB of SSDs. It is, but not on zero salary. Therefore I'm on mech drives still. Mine is abit of a worst case - but I've seen better performance with routers and NTFS drives (see here: Router Charts - NTFS Read - USB 3.0) As you can see, there are plenty of routers that will hit the 100MB/s with NTFS drives on the USB 3.0 port. That would satisfy me - and all routers run Linux, sort of.

I do know that NTFS is slower than native FS. That is not a surprise to me. I was not expecting SSD-like performance, just close to what a consumer router would give me. That is my disappointment.

Besides, I'm uniterested in benchmarks. Real-world file transfer speeds over a network are what I'm interested in. I move many gigs of data over a network on a daily basis and 40-50MB/s is fine, just a little less than what I was expecting.
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Old 18th October 2019, 07:01 AM   #93
soundcheck is offline soundcheck  Germany
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Quote:
Originally Posted by sangram View Post
Besides, I'm uniterested in benchmarks.

That's IMO pretty stupid.

You basically will have no reference. You're not able to see and identify the flaws or bottlenecks and based on that you draw highly questionable out-of-context conclusions. Like "my PI4 just does 30MBit/s".


It happened more then once that I was able to identify and solve quite serious issues by running benchmarks.
Such findings even lead to changes on official SW such as piCoreplayer.


Before I buy a device I have a look at e.g. Phoronix to lookup their benchmarks to get to know what to expect.

The first thing, after running stable, I do on any new system is running some basic benchmarks and that includes the (wireless) network performance btw.
I simply need to know that the system works fine.


I'm just saying.

Last edited by soundcheck; 18th October 2019 at 07:18 AM.
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Old 18th October 2019, 11:07 AM   #94
sangram is offline sangram  India
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Quote:
Originally Posted by soundcheck View Post
That's IMO pretty stupid.
Reading one line of a post and responding to it in isolation is exactly as stupid.

I said:

Quote:
Besides, I'm uniterested in benchmarks.
Followed by

Quote:
Real-world file transfer speeds over a network are what I'm interested in. I move many gigs of data over a network on a daily basis and 40-50MB/s is fine, just a little less than what I was expecting.
Am I stupid to expect something that delivers in real life? Benchmarks represent best case scenario. Not everybody has the same use case.

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Old 18th October 2019, 11:37 AM   #95
soundcheck is offline soundcheck  Germany
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Read and try to understand what I wrote.

That I'm simply quoting the key-message of your post, which to me is your key problem, doesn't mean I didn't read the whole text.

And guess what. I read your OP once more.
And another problem is of course is this:

Quote:
...Since I am a very basic user, I've stuck with the official distribution...
That problem alone, will prevent you from understanding your system and pushing its limits. Even running proper benchmarking tests would exceed
your capabilities. Now I understand.

The PI was never build and intended for very basic users though. There's a reason why SBCs are usually also called "development boards".
If you plan to continue to work with SBCs, you better gain some knowledge over time. It'll help a lot.

I do have the feeling, since the intro of the RPI, we have a lot more advanced Linux users around - even 10-year olds. Great.


Good luck with your projects.
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Old 18th October 2019, 04:41 PM   #96
sangram is offline sangram  India
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Being snippy is a fairly accurate mark of a 10-year old. Mentally, that is.

Good Luck with yours!
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Old 28th October 2019, 07:46 AM   #97
soundcheck is offline soundcheck  Germany
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Some more PI4 updates.

The foundation now merged the eeprom update toolsets.
Basically it's now possible to upgrade bootloader and usb controller with a single rpi-eeprom-update tool.
I bring that up once more because I consider certain features, such as saving around 20% power, that would come with
these eeprom/firmware upgrades quite essential.


Anyhow. My full blown 64bit system based on ARCH Linux is running quite stable now.

The powersavings measures known from the 3B+ are still not applicable though. I'm currently running
at around 480mA idle compared to 225mA idle
on the 3B+.

Stuff, like turning the mainboard LED off works. Turning the ethernet port LEDs off doesn't.
I am neither be able to turn off USB nor I'm able to turn off HDMI.

Again. The new platform is all but in a comparable mature state as the 3B+ platform used to be.

One thing that I'd really like to see is USB-boot. It's supposed to come sooner or later. They did focus on NetBoot first though.
You can still run the old method of putting the root dir on a SSD to speed things seriously up.


Yep. The PI folks are still working on the basics. The dust hasn't settled yet.



Over the weekend I attached a SSD to the PI4.
And then I made Logitechmediaserver going on my aarch64 userland.
And of course put the server and the music data on that SSD.

So far I'm more then pleased with the basic performance of that server.
The server is pretty responsive. I didn't experience any lags so far.
I could easily live with that setup. Of course I havn't done serious transcoding yet and my test database just holds a around 2000 tracks. Under real world conditions my early impressions might change.

That'll be it for now.

Enjoy.

Last edited by soundcheck; 28th October 2019 at 07:51 AM.
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Old 28th October 2019, 09:19 AM   #98
jean-paul is offline jean-paul  Netherlands
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The low price of a Pi seems to be compensated by putting in a lot of free time, isn't it?
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Old 28th October 2019, 10:19 AM   #99
soundcheck is offline soundcheck  Germany
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Not sure. Depends how you look at it.

Do you think building your own PS, DAC, amp or speaker (every other month) is a different subject and cost less free time !?!?

Fact is most users don't really care.
99.99% of all people simply write a foc image to SD card and enjoy the result. A 10 minutes effort. I think that's a great deal for the 99.99% .
For the rest it's a hobby.

Change and progress is the fuel to our hobbies. That keeps us going.
Time aspects become somewhat irrelevant.

Enjoy.
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Old 3rd November 2019, 03:25 PM   #100
Ivo is offline Ivo  Netherlands
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My experience with Pis has been both. It is possible to install a working OS and to get done what is possible and verified for that OS. But once you get creative or specific, it usually requires learning and hacking and, yes, free time.
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