Raspberry Pi Forums

jerrm

Did you try my post above? PicoTTS installs and runs without issue on Buster using those methods.

jerrm

Install from the Debian armhf repo on Pi2 1.2 or later, Pi3, or Pi4: wget http://ftp.us.debian.org/debian/pool/non-free/s/svox/libttspico0_1.0+git20130326-9_armhf.deb wget http://ftp.us.debian.org/debian/pool/non-free/s/svox/libttspico-utils_1.0+git20130326-9_armhf.deb sudo apt-get install -f ./libt...

jerrm

But having a Gigabit connection does not guarantee gigabit throughout across the Global Internet. That seems to be the issue the OP is confronted with... The speedtest.net servers should be capable relatively consistent between runs, but would like to see if he is connecting to the same servers in ...

jerrm

Ran into a bit of a problem here (never used pip before)... First: sudo apt remove speedtest-cli Then: pip install speedtest-cli which speedtest-cli So it could not be found.. It seems not to have been installed, so I guessed I had to sudo it: pip uninstall speedtest-cli .. Successfully uninstalled...

jerrm

Can you describe the network infrastructure your RPi is being connected to? It would be unusual for most users outside of institutional or commercial settings to get full Gigabit Ethernet speeds to or from sites on the global Internet. Not at all in many US markets. I have three GB connection provi...

jerrm

If you have a single interface and a useless masquerading rule, it is simply not used. Look at the number of packets the rule has processed after a run of iperf if you're not convinced. The rule does exactly what he wants. The other machines on the net have the pi set as their default gateway, the ...

jerrm

Well, I do professional work on a Pi4 every single day, and it's sitting on my desk naked as the day it was born. No case, no heatsink. You are not the average user. Maybe not a toy in your case, but the grand-ultimate-king hobbyist. Our uses are not average either, but there is no scenario we woul...

jerrm

Agree it should be possible without significant hit. All I can do is suggest troubleshooting steps I would go through, realizing you may have already tried some or all: Try it on a PC (is it a PI or Linux thing?) Try with a virtual interface on the same subnet (looks more like conventional routing) ...

jerrm

There are many people, including at least one RPi engineer, who want to run them without a case and without a fan. Milliwatts count. It's not for the lower price that some people still use the old A models. Folks still have old A's as an option if performance is not their need. IMO, a Pi without a ...

jerrm

No, you read it backwards. I get good performance WITH a UDP VPN, I get bad performances with NO VPN. I read it right, the point was that about 100mpbs is the most you will ever get out of OpenVPN on a Pi4 with most reasonable ciphers. The differences between direct and vpn connections was not bein...

jerrm

Oh... actually, I just tested with the vpn up and with a *UDP* VPN i AM getting about 100mbps. But with NO VPN I'm down at a lower value. That feels like it should point towards something?! That's as about as good as you can get with OpenVPN on the Pi. In my tests on a point to point GbE connection...

jerrm

OK, so that confirms there's no issue with the firmware update - just that the utility is leaving the chip in an odd state that can cause a shutdown hang. I would consider the performance hit an issue if there isn't an option to get it back. I don't care about the temp at all as long as it is stabl...

jerrm

Probably more appropriate based on the script content:
http://www.compciv.org/topics/bash/vari ... stitution/

jerrm

https://www.shellscript.sh/variables1.html

jerrm

It sounds like you are not properly using key files for ssh authentication. Any sort of auto mount on reboot will need proper keys setup. Once keys are properly setup neither scp or sshfs should need passwords entered. See https://www.raspberrypi.org/documentation/remote-access/ssh/passwordless.md. ...

jerrm

The problem with the last 10% taking a disproportionate amount of energy was solved recently by what is called agile methodology: Simply put the code in production when the project 90% finished. Recently? I've been using agile techniques for 30 years - just without the buzzwords and theology. Agile...

jerrm

rpdom wrote: ↑
Sun Aug 25, 2019 7:35 pm
Just that one. All my others (and I have several) work fine on Pi and PC.

Try this on the Pi(s) with uas enabled - run a bonnie benchmark and see if /va/log/kern.log shows any bus resets.

Code: Select all

sudo apt-get install bonnie++ 
sudo bonnie++ -u root -d /mnt/path/to/ssd

jerrm

rpdom wrote: ↑
Sun Aug 25, 2019 6:50 pm
The one I just received gave the same errors on my Intel Linux laptop.

Just the one problem adapter or 578 adapters in general?

jerrm

Having said that, I received another cheap JMicron USB3.0 SATA adaptor yesterday. That one was rubbish. Even after upgrading the firmware it gives IO errors on the HDD I tried it with. The HDD is fine with every other adaptor I've tried it with. But those JMS578 based adapters have been reliable an...

jerrm

Have you disabled uas support with the quirks option as described in the sticky?

https://www.raspberrypi.org/forums/view ... 8&t=245931

jerrm

Have you tested the drive/usb adapter performance? I've tested adapters that appear to work at first but eventually hang. There should be some indication of this in the logs though. The best test I've found to cause a failure is bonnie++. The "rewriting" phase of the benchmark breaks bad controllers...

jerrm

Are these USB thumb drives or SATA drives with adapters. If drives with adapters, try the quirks setting in the sticky https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=245931 (it's not just for speed). Pretty much any adapter was OK with USB2 on older Pis. USB3 on the Pi4 can be much pickier.

jerrm

Hi people, I try Iperf3 on RaspberryPi but the maximum speed is 891 Mbit/s on TCP or 958 Mbit/s on UDP, and the 2 of 4 cores was on 100% on htop Can anyone give advice for better performance I need to be 950 Mbit/s on TCP, Jerrm can you share how you get 1 Gbit/s on ethernet port. Thank in advance!...

jerrm

Have you opened up a terminal and ran htop during the test? The overhead of the test itself may be the problem. My Pi4 is on wireless right now, so that my limiting factor (at 48mbps) , but based cpu usage, it looks like cpu would be maxed out running speedtest-cli long before it could hit 1gbps (if...

jerrm

Setting OPENSSL_armcap=0 removes helps the Debian aarch64 https times as well: (pi64)root@raspberrypi:~# time OPENSSL_armcap=0 curl -k -o /dev/null https://192.168.22.109/ram/testfile.tst % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 2001M 10...

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