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by soundcheck
Tue Jul 14, 2020 9:30 am
Forum: Advanced users
Topic: Raspberry Pi 4 VL805 firmware release 0138a1
Replies: 35
Views: 8608

Re: Raspberry Pi 4 VL805 firmware release 0138a1

@Dougie. I do 100% agree with you. My last related post pretty much implying what you just said, was simply deleted. Anyhow. I hope they'll manage to revise the whole confusing terminology and process. Better late then never! I really hope that we see the VL805 FW betas also popping up on github soo...
by soundcheck
Mon Jul 13, 2020 2:50 pm
Forum: Advanced users
Topic: Raspberry Pi 4 VL805 firmware release 0138a1
Replies: 35
Views: 8608

Re: Raspberry Pi 4 VL805 firmware release 0138a1

Off topic? Look. I am a designer myself. Just for me to understand. You release beta VLI firmware using this forum. And if you finally release it you put it on github. And that you do, even though github is offering us designers beta firmware branches. For me it would be much easier to have that VLI...
by soundcheck
Mon Jul 13, 2020 1:26 pm
Forum: Advanced users
Topic: Raspberry Pi 4 VL805 firmware release 0138a1
Replies: 35
Views: 8608

Re: Raspberry Pi 4 VL805 firmware release 0138a1

Why isn't this firmware showing up on https://github.com/raspberrypi/rpi-eeprom/tree/master/firmware And I am also confused to see the same "critical" !?!? (finally released) vl805 firmware under each branch (beta/stable/critical) of the github firmware tree. :? I'd say the 0138a1 would belong into ...
by soundcheck
Mon Jul 06, 2020 10:54 am
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

I tested some more powerdown to 20 mA options: All these worked: shutdown -h now halt -p poweroff poweroff -p All of them bring my system properly down to 20mA. Arch Linux shutdown/halt/poweroff/reboot are linked to "systemctl". All of them are aliases. Fedora is similar. The overall behavior might ...
by soundcheck
Sun Jul 05, 2020 7:20 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

Havn't tested "poweroff".

man-pages state that "-p" applies to reboot, halt, poweroff
-p, --poweroff
Power-off the machine, regardless of which one of the three commands is invoked.
by soundcheck
Sun Jul 05, 2020 5:48 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

I tested another potential USB (controller) off option. echo 1 >/sys/bus/pci/devices/0000\:01\:00.0/remove This does disconnect the USB controller from pci. lsusb shows no output anymore. However. Power consumption won't change. Either the USB controller is already down. They did try to improve a lo...
by soundcheck
Wed Jul 01, 2020 7:44 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

My actual Q was if a lower temp shows a relevant lower current.
by soundcheck
Wed Jul 01, 2020 6:24 am
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

Interesting that this thread popped up once more.

Anybody been looking into proper (passive) cooling the CPU, PMIC, USB ?
Temperature also has an impact on power consumption. I am not sure though what magnitude we're talking about.
by soundcheck
Tue May 26, 2020 12:24 pm
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

Look. The default NFS protocol is TCP. TCP usually won't loose data. You for sure hit the wrong thread with your problems. That's not what this thread is all about. We're also not talking about 100MBit/s. We're simply talking about the GBit UDP capabilities and related flaws/weak spots of the RPI4. ...
by soundcheck
Mon May 25, 2020 5:45 am
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

I'd agree with ejolson.
by soundcheck
Tue Mar 17, 2020 8:29 am
Forum: Advanced users
Topic: Raspberry Pi4 bootloader beta update and new stable release stream
Replies: 56
Views: 8661

Re: Raspberry Pi4 bootloader beta update and new stable release stream

Folks. Staying focused is what keeps people going. Self-pity and/or deflection is destructive. Until now this forum made a real good impression to me. Lot's of constructive talk and information. I hope it stays this way. And. To the RPI developers. You're in a very lucky position to have an opportun...
by soundcheck
Mon Mar 16, 2020 4:38 pm
Forum: Advanced users
Topic: Raspberry Pi4 bootloader beta update and new stable release stream
Replies: 56
Views: 8661

Re: Raspberry Pi4 bootloader beta update and new stable release stream

It doesn't make sense. It's illogical terminology. And it is also implemented that way - illogical - IMO. I do understand that it is difficult to roll back. And therefore I understand timg236's position. I do think the whole eeprom handling needs an overhaul though. Not just stable vs. critical vs. ...
by soundcheck
Mon Mar 16, 2020 12:22 pm
Forum: Advanced users
Topic: Raspberry Pi4 bootloader beta update and new stable release stream
Replies: 56
Views: 8661

Re: Raspberry Pi4 bootloader beta update and new stable release stream

A couple of months ago I made that "stable" branch proposal in another thread, since "critical" never made sense to me. Answer was something like - "It can't be changed anymore" . Ok. At the time. Understandable. Fast forward: Below an excerpt from rpi-eeprom-update -h A 'critical' update is the lat...
by soundcheck
Sat Feb 22, 2020 9:49 am
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

I also read that thread. And I also read the related trouble ticket at the rpi kernel git. These folks were very quick on blaming the router. To me it seemed that the assigned designer over at github was quite happy to have a nice hook for jumping on that train and quickly close the ticket. To me it...
by soundcheck
Fri Feb 21, 2020 5:30 pm
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

My current way of getting around the subject 1. I add isolcpus=0 to /boot/cmdline.txt to avoid any interference with the NIC. 2. I simply nailed the CPUs to max performance, adding ##cpu clock arm_freq=1500 ##disable CPU throttling force_turbo=1 to /boot/config.txt. This way the governor does not ha...
by soundcheck
Fri Feb 21, 2020 10:36 am
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

Hmmh. It seems the nobody of the foundation is interested. :?: :? FYI. Another development. I ran some more tests. I am now running 2 RPi4s. One as server one as client. CPU0 is isolated on both. It turns out that there's another rather obvious factor to keep in mind. The CPU that's running the benc...
by soundcheck
Fri Feb 07, 2020 7:25 am
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

Hi. Another thought/question. Gbit networking is a pretty intense task. It causes a huge number of IRQs in the environment. The RPI 4B comes with a new interrupt controller. The GIC-400. That one is supposed to handle and issue the interrupts to offload to CPUs from the task - as far as I understood...
by soundcheck
Thu Feb 06, 2020 7:24 am
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

I don't know how fast the NIC will run on a Pi 4 but I don't think it is anywhere near the 1G speed. If you are sending UDP packets at that rate a lot of them are going in the bit bucket. No need for speculations. There's proof that it'll work under certain conditions: As I said. Isolating CPU0 and...
by soundcheck
Wed Feb 05, 2020 4:52 pm
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

Re: RPi4 - serious (UDP) network issues

IMO increasing buffers - if that'd help at all - is just another workaround to cope with a high inefficiency or a flaw (>>bufferbloat!). My NUC runs at the same buffersize "net.core.rmem_max = 212992" btw and is not loosing any data. I do suspect an inefficiency in the IRQ/softirq IRQ management are...
by soundcheck
Wed Feb 05, 2020 2:03 pm
Forum: Troubleshooting
Topic: RPi4 - serious (UDP) network issues
Replies: 20
Views: 1807

RPi4 - serious (UDP) network issues

Hi. I'm running a RPi4, with latest 4.19.97-v8+ kernel OS is Rasbian Buster. While running iperf3 UDP tests I encountered following situation: RPi4: iperf3 -s -V NUC: iperf3 -c 192.xxx.x.xxx -V -i 1 -b 0 -u -t 60 Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Jitter Lost/Total Datag...
by soundcheck
Thu Dec 12, 2019 3:45 pm
Forum: Advanced users
Topic: RPi4 - GICv2 - IRQs still show on CPU0 !?!?
Replies: 1
Views: 276

RPi4 - GICv2 - IRQs still show on CPU0 !?!?

Could anybody explain to me why all the interrupts are still shown on CPU0? I had the the understanding that the GIC supposedly offloads the CPU from IRQs. Same look on 32/64bit kernels (4.19.86-v8+) btw. # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 3: 1083 1794 2181 14 GICv2 30 Level arch_timer 6: 0 ...
by soundcheck
Tue Nov 26, 2019 9:06 am
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

OK. I think I kind of isolated the behavior. The "halt" 700mA issue, that I ran into, pops up when running the 64bit foundation kernel (4.19.85-v8+) Booting the 32bit kernel does show the same 20mA behavior "halt=shutdown" as you folks reported. Perhaps somebody else gives the 64bit kernel a try to ...
by soundcheck
Mon Nov 25, 2019 5:53 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

You seem to have your rpi-eeprom or better vl805 not up2date.

i am running the 64 bit kernel.

my raspbian is just a couple of weeks old.

BL. There are plenty of differences.
by soundcheck
Mon Nov 25, 2019 12:46 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

What's your eeprom version? "rpi-eeprom-update"
by soundcheck
Sat Nov 23, 2019 1:32 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 13064

Re: RPi4 - Power Savings

My head keeps spinning. ;) Following above logic and findings, that peripherals simply don't power down themselves if they loose connection to the host on the PI4 might explain the difference to the PI3B+ . Which is: If I e.g. disconnect the USB/ethernet HUB from the host on the PI3 by unbinding the...

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