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by ejolson
Sun Sep 15, 2019 9:44 pm
Forum: Networking and servers
Topic: Generic storage benchmark on RPI
Replies: 1
Views: 30

Re: Generic storage benchmark on RPI

Hi Folks, There's a lot of disk benchmarking done for SSD / SD etc and other storage using CrystalDiskMark which runs on PC. Is there an equivalent running natively on RPI raspian? It will be a better 'whole-system' test for storage performance that just testing the media on a PC without taking int...
by ejolson
Sun Sep 15, 2019 9:34 pm
Forum: General discussion
Topic: Pi4 Sysbench results
Replies: 5
Views: 1385

Re: Pi4 Sysbench results

I wouldn't say sysbench CPU is useless, but acknowledge that a prime number sieve is not representative of everyday desktop usage. I missed the sysbench discussion 1.5 years ago on this forum, but I believe I resolved any open questions here: https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=...
by ejolson
Sun Sep 15, 2019 8:42 pm
Forum: General discussion
Topic: Pi4 Sysbench results
Replies: 5
Views: 1385

Re: Pi4 Sysbench results

[email protected],75ghz [email protected]:~ $ sysbench --num-threads=4 --test=cpu --cpu-max-prime=20000 --validate run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 4 Additional request validation enabled. Doing CPU performance benchmark T...
by ejolson
Sun Sep 15, 2019 5:57 pm
Forum: Beginners
Topic: Rasberry pi B unusably slow
Replies: 5
Views: 132

Re: Rasberry pi B unusably slow

I started Chromium, went to yahoo, to click on a link. It took 1.5 minutes before chromium reached a point where I can type the address, and about 6 minutes until it popped out a "page unresponsive. Web browsing hasn't ever worked well with the original models of Raspberry Pi or the Zero. To try an...
by ejolson
Sun Sep 15, 2019 4:15 am
Forum: Advanced users
Topic: Raspberry Pi distributed computer project
Replies: 5
Views: 216

Re: Raspberry Pi distributed computer project

Yes, Building a super computer of my own opens many more doors for programming and learning even more with these small boards we love so much. I built a super-cheap cluster using five Pi Zero computers, a Pi B+ and a USB hub. Getting the software to perform a parallel computation is the main diffic...
by ejolson
Sat Sep 14, 2019 6:43 pm
Forum: Networking and servers
Topic: Pi-hole & OMV - Enclosure options for HDDs and the feasibility using two USB hubs to connect 4-8 HDDS
Replies: 5
Views: 132

Re: Pi-hole & OMV - Enclosure options for HDDs and the feasibility using two USB hubs to connect 4-8 HDDS

There is some discussion about a similar idea in the following thread: https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=198578&start=25#p1526290 I've been using the four-disk enclosure that I linked in the previous thread for about a year and it works well. The Pi 4B had no trouble identifyi...
by ejolson
Sat Sep 14, 2019 6:29 pm
Forum: Networking and servers
Topic: Pi-hole & OMV - Enclosure options for HDDs and the feasibility using two USB hubs to connect 4-8 HDDS
Replies: 5
Views: 132

Re: Pi-hole & OMV - Enclosure options for HDDs and the feasibility using two USB hubs to connect 4-8 HDDS

So out of this, I have 2 questions. Is this plan practical and can it/will it work? Are there any enclosures that could handle that many drives with some spare room to hide 2 USB hubs? There is some discussion about a similar idea in the following thread: https://www.raspberrypi.org/forums/viewtopi...
by ejolson
Sat Sep 14, 2019 5:58 pm
Forum: Off topic discussion
Topic: Raspberry Pi tutorial website
Replies: 67
Views: 30883

Re: Raspberry Pi tutorial website

DarkPlatinum wrote:
Sat Sep 14, 2019 1:02 pm
Website will be down while I try to fix it.... Database problems.
Did the update to Buster break the database?
by ejolson
Sat Sep 14, 2019 5:41 pm
Forum: General discussion
Topic: Is the new Raspberry Pi 4 vulnerable to Meltdown and Spectre attacks?
Replies: 27
Views: 2290

Re: Is the new Raspberry Pi 4 vulnerable to Meltdown and Spectre attacks?

I'm sure there are plenty of criminals who can get by without a mouse. Even in the United States more murders are committed using knives than with mice. Yet, discussions on whether mice should be outlawed often degenerate into a shooting match in which one side screams that without mice it would be...
by ejolson
Sat Sep 14, 2019 4:59 pm
Forum: General discussion
Topic: Is the new Raspberry Pi 4 vulnerable to Meltdown and Spectre attacks?
Replies: 27
Views: 2290

Re: Is the new Raspberry Pi 4 vulnerable to Meltdown and Spectre attacks?

It requires a fair amount of knowledge and effort to exploit properly. After sufficiently user-friendly software has been written, it takes almost no knowledge for a criminal to use it. The only way to prevent the computer illiterate from exploiting security vulnerabilities such a Spectre and Meltd...
by ejolson
Sat Sep 14, 2019 4:41 pm
Forum: General discussion
Topic: Fastest Micro SD card for Pi 4? Does it support XC U3?
Replies: 27
Views: 3062

Re: Fastest Micro SD card for Pi 4? Does it support XC U3?

This guy tested several micro SD cards on Raspberry pi 4 4 iops speed www.pidramble.com/wiki/benchmarks/microsd-cards An interesting comparison. As cards age they slow down due to the need for wear leveling. Strangely, it would appear that Only one card of each type was tested. The age of each card...
by ejolson
Sat Sep 14, 2019 2:57 pm
Forum: General discussion
Topic: Is the new Raspberry Pi 4 vulnerable to Meltdown and Spectre attacks?
Replies: 27
Views: 2290

Re: Is the new Raspberry Pi 4 vulnerable to Meltdown and Spectre attacks?

CueCueBangBang wrote:
Sat Sep 14, 2019 7:19 am
Also gave this a test with Manjaro ARM. It gave completely different results, leading me to believe they put a patch in the OS of Raspbian Buster.
It would be interesting to run the test on the Pi 3B+ to see whether anything unexpected shows up.
by ejolson
Sat Sep 14, 2019 4:51 am
Forum: General discussion
Topic: Looking for a mounting solution for RPi (in case)
Replies: 6
Views: 192

Re: Looking for a mounting solution for RPi (in case)

.We've settled on a secure modular case that has 2 screw mount holes on the bottom, so I COULD just grab a hunk of wood and some screws, but I was hoping to find a more elegant solution that would also help organize all my cables. You can tack the cables to the wood to keep them organized. For eleg...
by ejolson
Sat Sep 14, 2019 3:06 am
Forum: Networking and servers
Topic: Make RPi show in Network List in Windows 8 or 10
Replies: 9
Views: 336

Re: Make RPi show in Network List in Windows 8 or 10

LTolledo wrote:
Sat Sep 14, 2019 12:57 am
mine is just simple addition to the global section of smb.conf

Code: Select all

workgroup = PAYPERCONNECTWORKGROUP
wins support = yes
client max protocol = NT1 
It would appear to me your workgroup name has more than 15 characters. Does that really work? Also, does anyone actually pay?
by ejolson
Fri Sep 13, 2019 6:10 pm
Forum: General discussion
Topic: Third party OS using pi 4
Replies: 16
Views: 583

Re: Third party OS using pi 4

OK. I would like some shares for this, but anyways: Pi people, if you froze Raspbian for a month and put all your efforts and the community into getting Mate to work, don't you think you would sell 10 x times what you are now do? Nothing would match the growth. Don't think it would make much of a d...
by ejolson
Fri Sep 13, 2019 5:29 pm
Forum: Networking and servers
Topic: How to load balance 4 RasPis
Replies: 3
Views: 80

Re: How to load balance 4 RasPis

adanchenko wrote:
Fri Sep 13, 2019 2:03 pm
Image
I would check that all Pi computers have the correct time and date: DNS servers don't work very well when the time is off by a few years or even hours.

Do you have 4 different WiFi access points?
by ejolson
Fri Sep 13, 2019 4:40 pm
Forum: General discussion
Topic: Third party OS using pi 4
Replies: 16
Views: 583

Re: Third party OS using pi 4

i like ubuntu mate alot! Mint is also good, but I'm not sure mint goes well in raspberry pie. Although the idea of a light-weight desktop based on Openbox was very good in the beginning, it lost its best feature, in my opinion, when the distinctive Pi logo used for the default background was replac...
by ejolson
Fri Sep 13, 2019 2:42 pm
Forum: Beginners
Topic: ARRRRGGGHHHH Its happened again! - Lost Samba settings
Replies: 28
Views: 432

Re: ARRRRGGGHHHH Its happened again!

Just ran this:- sudo systemctl status smbd.service ● smbd.service - Samba SMB Daemon Loaded: loaded (/lib/systemd/system/smbd.service; enabled; vendor preset: ena Active: active (running) since Fri 2019-09-13 12:36:37 BST; 9min ago Docs: man:smbd(8) man:samba(7) man:smb.conf(5) Process: 4069 ExecSt...
by ejolson
Fri Sep 13, 2019 4:06 am
Forum: General discussion
Topic: File sharing & encrytion
Replies: 5
Views: 172

Re: File sharing & encrytion

Hello I want to set up file-sharing between Pi4 and Win 10 but the only instructions I can find is https://www.raspberrypi.org/forums/viewtopic.php?t=205379 which is all command line and doesn't have a GUI. Compare to Mint: https://www.technig.com/share-files-via-linux-mint-to-windows-10/ Is there ...
by ejolson
Fri Sep 13, 2019 3:45 am
Forum: Troubleshooting
Topic: Buster updates started to fail at 22th August
Replies: 10
Views: 405

Re: Buster updates started to fail at 22th August

OK, so what happened to 'apt-get update'? Someone decided it wasn't broke, so... I would expect "update" to update any files/programs that have minor upgrades and changes I would expect "upgrade" to take me from stretch to buster - major upgrades and changes, new features It's strange how expectati...
by ejolson
Fri Sep 13, 2019 3:04 am
Forum: Networking and servers
Topic: Serial vs. Ethernet
Replies: 4
Views: 173

Re: Serial vs. Ethernet

Currently I have a device sending 20 messages per second at 115200 bad over a short serial link to a Pi. I think the comparison is between the serial USB gadget and the Ethernet gadget when communicating with the Pi Zero, neither of which are bad. The Ethernet gadget provides a natural way to open ...
by ejolson
Thu Sep 12, 2019 6:27 pm
Forum: General discussion
Topic: Back Voltage from USB Hub
Replies: 8
Views: 281

Re: Back Voltage from USB Hub

trejan wrote:
Thu Sep 12, 2019 11:28 am
Burngate wrote:
Thu Sep 12, 2019 10:06 am
The B+ had a AP2553 acting as a reverse-current blocking device.
Apparently the 4B does not.
4B has an AP2552 which is an active low enable version of the AP2553.
How does this work? Does it prevent problems when the Pi is running from it's own power supply?
by ejolson
Thu Sep 12, 2019 6:09 pm
Forum: Beginners
Topic: Relay - can it be used in reverse (signal microcontroller) ?
Replies: 14
Views: 543

Re: Relay - can it be used in reverse (signal microcontroller) ?

Newbie alert: Is it possible to use a mechanical relay that, when there's an AC voltage, switches the DC side of the relay? ie. someone turns on a light, and the raspberry pi is signalled Or is the alternative to use a solid state opto-coupler and resistors? The difficulty with all the proposed sol...
by ejolson
Thu Sep 12, 2019 3:09 pm
Forum: General discussion
Topic: Multiple Pi's to replace W10
Replies: 40
Views: 2079

Re: Multiple Pi's to replace W10

In my various browsing and interest in clusters I came across bccd - - bootable cluster CD. https://bccd.net Points in favor; Debian base, in fact they describe it as a thin veneer laid over Debian. Open source. There was a question (about 6 years ago) about compiling for ARM (specifically R Pi) wh...
by ejolson
Thu Sep 12, 2019 2:21 pm
Forum: Networking and servers
Topic: APFS and Raspberry Pi
Replies: 3
Views: 142

Re: APFS and Raspberry Pi

Hi, I am new to the rPi scene, and was wondering if anyone had any experience using APFS (Apple's Latest Filesystem) successfully with Raspberry Pi. I have a 4TB external HDD formatted as APFS, and was wondering if it would work out of the box, or if I needed to install anything, or just to convert...

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