Go to advanced search

by jerrm
Sun Sep 29, 2019 6:58 pm
Forum: General discussion
Topic: running the system (a pi4b) off of ssd, will it give speed improvements?
Replies: 14
Views: 756

Re: Ssd

All StarTech products with ASMedia ASM1351 chip . Just install the firmware update. I'm using cable-style adapters , and with the official firmware 150708B10103 the UASP and the TRIM/UNMAP are working well. Will it complete the a bonnie benchmark without any errors in syslog? sudo apt-get install b...
by jerrm
Sun Sep 29, 2019 5:29 pm
Forum: General discussion
Topic: running the system (a pi4b) off of ssd, will it give speed improvements?
Replies: 14
Views: 756

Re: Ssd

Kendek wrote:
Sat Sep 28, 2019 10:55 am
A good SSD is much faster than an SD card in Pi, if connected through USB 3.x. Especially with UASP and TRIM/UNMAP support.
Have you found an USB3 adapter for the pi that supports both UASP and TRIM?
by jerrm
Sat Sep 28, 2019 10:09 pm
Forum: Troubleshooting
Topic: [Not getting my full Gigabit internet speed on RPI 4b 4GB]
Replies: 36
Views: 1639

Re: [Not getting my full Gigabit internet speed on RPI 4b 4GB]

For upload speed, the benchmark creates a local file, then sends the file. If the SD cards read speed isn't supportive of speeds of 1Gb, you will never see 1Gb uploads. From a quick read, upload date is allocated in memory, not on storage. SD speed shouldn't matter - unless memory is so constrained...
by jerrm
Fri Sep 27, 2019 8:21 pm
Forum: Troubleshooting
Topic: [Not getting my full Gigabit internet speed on RPI 4b 4GB]
Replies: 36
Views: 1639

Re: [Not getting my full Gigabit internet speed on RPI 4b 4GB]

What speed is your SD card? Could that be the issue? A speedtest works by downloading data and measuring how long it takes. If your storage media cannot write the data that is being downloaded fast enough, then it will cause the download to slow down and you'll get a slower result. It says read spe...
by jerrm
Thu Sep 26, 2019 7:52 pm
Forum: General discussion
Topic: USB attached hd keeps Rasperian from booting
Replies: 8
Views: 302

Re: USB attached hd keeps Rasperian from booting

Try adding the quirk to disable UAS. https://www.raspberrypi.org/forums/view ... 8&t=245931

I have seen boot hangs on drive/adapter combos that "mostly" work with UAS enabled - but really need the quirk. Easy enough to undo if it's not the problem.
by jerrm
Tue Sep 24, 2019 11:13 pm
Forum: General discussion
Topic: Raspberry Pi 4 BCM2711B0 vs Intel Atom x5-z8350
Replies: 25
Views: 4274

Re: Raspberry Pi 4 BCM2711B0 vs Intel Atom x5-z8350

I get an encrypted connection faster than than 700 Mbps with WireGuard https://www.raspberrypi.org/forums/viewtopic.php?f=36&t=251159 WireGuard uses modern dance-themed encryption cyphers that are arguable more secure than AES and fast on the 4B even without hardware acceleration. I also found Wire...
by jerrm
Tue Sep 24, 2019 1:17 pm
Forum: General discussion
Topic: Raspberry Pi 4 BCM2711B0 vs Intel Atom x5-z8350
Replies: 25
Views: 4274

Re: Raspberry Pi 4 BCM2711B0 vs Intel Atom x5-z8350

I thought about buying Compute Stick before, but for NAS, gigabit Ethernet is critical and Compute Stick has none. NAS using what protocols? And do you mean GigE speeds are critical or simply want wired ethernet? For most any encrypted protocol, throughput on the Pi4 is going to max out at around 1...
by jerrm
Sun Sep 22, 2019 5:24 pm
Forum: General discussion
Topic: Raspberry Pi 4 BCM2711B0 vs Intel Atom x5-z8350
Replies: 25
Views: 4274

Re: Raspberry Pi 4 BCM2711B0 vs Intel Atom x5-z8350

Can't speak to the particular device, but generally the 8350 will edge out the Pi4 in most cases. Biggest advantage for the Atom is for anything encrypted that can take advantage of the hardware AES acceleration (Atom runs rings around the Pi for those scenarios). Pi4 still beats on price in the US,...
by jerrm
Wed Sep 18, 2019 3:35 pm
Forum: Français
Topic: [ resolu ] installation picotts
Replies: 10
Views: 520

Re: installation picotts

Did you try my post above? PicoTTS installs and runs without issue on Buster using those methods.
by jerrm
Tue Sep 17, 2019 5:51 pm
Forum: Français
Topic: [ resolu ] installation picotts
Replies: 10
Views: 520

Re: installation picotts

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...
by jerrm
Sun Sep 15, 2019 5:28 pm
Forum: Troubleshooting
Topic: [Not getting my full Gigabit internet speed on RPI 4b 4GB]
Replies: 36
Views: 1639

Re: [Not getting my full Gigabit internet speed on RPI 4b 4GB]

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 ...
by jerrm
Sun Sep 15, 2019 2:40 pm
Forum: General discussion
Topic: speedtest difference Windows-RPi4
Replies: 12
Views: 743

Re: speedtest difference Windows-RPi4

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...
by jerrm
Sun Sep 15, 2019 2:35 pm
Forum: Troubleshooting
Topic: [Not getting my full Gigabit internet speed on RPI 4b 4GB]
Replies: 36
Views: 1639

Re: [Not getting my full Gigabit internet speed on RPI 4b 4GB]

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...
by jerrm
Sat Sep 14, 2019 6:26 pm
Forum: Troubleshooting
Topic: woeful throughput on pi as raspbian router
Replies: 23
Views: 846

Re: woeful throughput on pi as raspbian router

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 ...
by jerrm
Fri Sep 13, 2019 3:03 pm
Forum: Troubleshooting
Topic: VLI firmware v2.0 - powersaving features enabled
Replies: 103
Views: 17298

Re: VLI firmware v2.0 - powersaving features enabled

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...
by jerrm
Fri Sep 13, 2019 2:14 pm
Forum: Troubleshooting
Topic: woeful throughput on pi as raspbian router
Replies: 23
Views: 846

Re: woeful throughput on pi as raspbian router

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) ...
by jerrm
Fri Sep 13, 2019 1:56 pm
Forum: Troubleshooting
Topic: VLI firmware v2.0 - powersaving features enabled
Replies: 103
Views: 17298

Re: VLI firmware v2.0 - powersaving features enabled

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 ...
by jerrm
Thu Sep 12, 2019 6:50 pm
Forum: Troubleshooting
Topic: woeful throughput on pi as raspbian router
Replies: 23
Views: 846

Re: woeful throughput on pi as raspbian router

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...
by jerrm
Thu Sep 12, 2019 5:41 pm
Forum: Troubleshooting
Topic: woeful throughput on pi as raspbian router
Replies: 23
Views: 846

Re: woeful throughput on pi as raspbian router

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...
by jerrm
Thu Sep 12, 2019 5:34 pm
Forum: Troubleshooting
Topic: VLI firmware v2.0 - powersaving features enabled
Replies: 103
Views: 17298

Re: VLI firmware v2.0 - powersaving features enabled

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...
by jerrm
Tue Sep 10, 2019 10:49 pm
Forum: Beginners
Topic: What does $ mean
Replies: 6
Views: 314

Re: What does $ mean

Probably more appropriate based on the script content:
http://www.compciv.org/topics/bash/vari ... stitution/
by jerrm
Tue Sep 10, 2019 10:42 pm
Forum: Beginners
Topic: What does $ mean
Replies: 6
Views: 314

Re: What does $ mean

by jerrm
Fri Sep 06, 2019 8:52 pm
Forum: Beginners
Topic: SSHFS (SSH Filesystem) doesn't work properly
Replies: 4
Views: 194

Re: SSHFS (SSH Filesystem) doesn't work properly

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. ...
by jerrm
Mon Aug 26, 2019 2:38 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 259
Views: 24263

Re: Why moving to 64bit?

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...
by jerrm
Sun Aug 25, 2019 7:50 pm
Forum: Troubleshooting
Topic: Pi 4, rootfs on SSD goes readonly
Replies: 19
Views: 1380

Re: Pi 4, rootfs on SSD goes readonly

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

Go to advanced search