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by ejolson
Sun Aug 18, 2019 4:49 pm
Forum: General discussion
Topic: Lightweight word processor (alternative to LibreOffice Writer)?
Replies: 25
Views: 875

Re: Lightweight word processor (alternative to LibreOffice Writer)?

Another alternative is LYX , which is a latex-based layout and document generator. If you are writing research papers or journal articles, it might be worth exploring. But it is not designed to be a pure word prcoessor. Opposite of LYX is TeXmacs , which was designed to be a word processor and surp...
by ejolson
Sun Aug 18, 2019 4:25 pm
Forum: General discussion
Topic: RealVNC server in virtual mode - Enterprise license required?
Replies: 12
Views: 438

Re: RealVNC server in virtual mode - Enterprise license required?

Huhhh.... I could have sworn that I had used virtual mode in the past, without a special license. I'm pretty sure I've run the server in that mode. It seems unlikely for such major functionality to have been removed without anyone noticing, but maybe you're the first person to notice. The usual way...
by ejolson
Sun Aug 18, 2019 2:21 am
Forum: General discussion
Topic: Tool like imgurn (for ripping disks) on pi?
Replies: 8
Views: 365

Re: Tool like imgurn (for ripping disks) on pi?

As I somewhat frequently pick up PS1 games for emulating on my pi I'm curious if there are any tools as simple to use as imgburn for ripping a copy of a PS1 CD. On a windows PC I just pop a PS1 disc into my external drive (the drive is tested and working on my pi) open imgurn and click "rip disk" w...
by ejolson
Sat Aug 17, 2019 7:43 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 205
Views: 10024

Re: Why moving to 64bit?

ARMV7_NEON is turned on by default and necessary for good 32-bit AES performance. Somehow it hurts 64-bit AES performance with the GCM ciphers though, and turning it off results in a consistent 57% speedup in the 256-bit case. In case nobody has posted the output already, here is the benchmark for ...
by ejolson
Sat Aug 17, 2019 5:36 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 205
Views: 10024

Re: Why moving to 64bit?

pica200 wrote:
Sat Aug 17, 2019 5:34 pm
See a few posts above. This code already exists but is not used currently. Seems like no one noticed because there are barely SoCs without acceleration :roll:
Maybe the code is not enabled because it doesn't work.

Woohoo! If I get it to work, do you think I could collect the bounty?
by ejolson
Sat Aug 17, 2019 5:22 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 205
Views: 10024

Re: Why moving to 64bit?

Did some https download tests. They appear to confirm jdonald's AES_ASM issues for 64 bit. The Debian armhf userland shows substantial improvement over Raspbian here. Baseline - no encryption (all three userlands are at wire speed within .05 secs of each other): ====================================...
by ejolson
Sat Aug 17, 2019 5:02 pm
Forum: General discussion
Topic: Make backups of a live running Raspberry Pi?
Replies: 8
Views: 596

Re: Make backups of a live running Raspberry Pi?

riahc3 wrote:
Sat Aug 17, 2019 5:58 am
Is it possible to make live backups of a running Raspberry Pi?
Here is another approach which can be used to make online incremental backups of a running Pi.
by ejolson
Sat Aug 17, 2019 4:59 pm
Forum: General discussion
Topic: Lightweight word processor (alternative to LibreOffice Writer)?
Replies: 25
Views: 875

Re: Lightweight word processor (alternative to LibreOffice Writer)?

Yes, I use vim on a daily basis. But vim is a text editor. It doesn't have the features one normally looks for in a word processor. And before anyone asks: yes, I have experience with LaTeX too. While LaTeX makes scientific article writing a breeze, it's a total time sink if you want to produce a d...
by ejolson
Sat Aug 17, 2019 3:25 pm
Forum: Networking and servers
Topic: PiServer ram requirements
Replies: 3
Views: 405

Re: PiServer ram requirements

A thin client would load in its own RAM everything it needs from a server and then go its merry way. The server needs ample (and if possible fast) storage space, but unless it runs a lot of services on behalf of the clients it wouldn’t necessarily need a lot of RAM. Probably you mean a thick client...
by ejolson
Sat Aug 17, 2019 8:34 am
Forum: Networking and servers
Topic: Making a VPN gateway with two ethernet ports?
Replies: 4
Views: 582

Re: Making a VPN gateway with two ethernet ports?

Its because what you want is illegal in the countries that block VPN. Thanks for the reply! It's no more illegal than using VPN with Netflix to watch another countries content. Both me and my parents live in the EU, northern Europe. NordVPN has been working perfectly until now, but these days Netfl...
by ejolson
Sat Aug 17, 2019 8:00 am
Forum: General discussion
Topic: Alternative to Open Media Vault?
Replies: 7
Views: 512

Re: Alternative to Open Media Vault?

Just going back to this... I found this... https://www.ionos.co.uk/digitalguide/server/configuration/raspberry-pi-plex-server/ ...that shows you how to install Plex on a Raspbian desktop. Presumably I could then also set up folders on my HDD as samba shares to give me what I’m looking for....a Plex...
by ejolson
Sat Aug 17, 2019 5:51 am
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 205
Views: 10024

Re: Why moving to 64bit?

It's just that when you start to expect such high performance from the very cheap and humble Pi I wonder if that was ever it's intended use case. The thing about a cheap general-purpose single-board computer marketed towards schools, makers and hobbyists is that the intended use case is very open e...
by ejolson
Sat Aug 17, 2019 3:44 am
Forum: General discussion
Topic: Test Comparisons on Raspberry Pi 4 on 1 GB, 2 GB and 4 GB models
Replies: 7
Views: 766

Re: Test Comparisons on Raspberry Pi 4 on 1 GB, 2 GB and 4 GB models

This equation obviously changes for large scale deployments but for the home user the differential we are talking about is roughly the price of a large pizza. I definitely agree about that the 4GB model is the one outside of large deployments for personnel use. I bought what was in stock at Micro C...
by ejolson
Sat Aug 17, 2019 12:34 am
Forum: General discussion
Topic: Return or Fix bent pins.
Replies: 4
Views: 480

Re: Return or Fix bent pins.

I am open to suggestions on what I should do? Fix the pins myself? Or return and ask for replacement? Also isn't it their duty to send me the replacement in express delivery?? Since technical support from Canakit recommended straightening the pins, then presumably doing so will not void the warrant...
by ejolson
Fri Aug 16, 2019 4:48 pm
Forum: General discussion
Topic: Change root in cmdline.txt
Replies: 13
Views: 809

Re: Change root in cmdline.txt

Folks, Think I misunderstood something some time back that I read in an article somewhere. In the cmdline.txt file in the /boot directory there is an entry as follows; root=PARTUUID=c82337fe-02 which seems to allow setting the root directory to a different location. Now I am thinking you need the o...
by ejolson
Fri Aug 16, 2019 4:34 pm
Forum: General discussion
Topic: Bitdefender Box
Replies: 2
Views: 211

Re: Bitdefender Box

I have just installed a Bitdefender Box on my network. Seems to be working, but it has flagged up all four of my Pis as vulnerable to Denial of Service attacks. Does anyone know why this might be, and what I can do about it? I think it means you haven't installed or set up fail2ban on each Pi. In m...
by ejolson
Fri Aug 16, 2019 4:17 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 205
Views: 10024

Re: Why moving to 64bit?

I'm wondering who are all these people that need 100 megabytes per second in or out of their Pi, and why do they need it? I can't collect data anywhere near that fast from any devices connected to my Pi. If I could I cannot get it over my internet connection or mobile connection. I'm the first to a...
by ejolson
Fri Aug 16, 2019 4:08 pm
Forum: General discussion
Topic: Fan failure?
Replies: 15
Views: 587

Re: Fan failure?

I can't hear the fan on my Pi and it is sitting approximately 2 feet away on my desk. Earplugs can also help. I used to have a set of over-the-ear hearing protectors for use when the computers got loud. Those can be purchased at typical hardware stores, an ironmonger or sporting goods store. My bro...
by ejolson
Fri Aug 16, 2019 2:41 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 205
Views: 10024

Re: Why moving to 64bit?

I'm wondering who are all these people that need 100 megabytes per second in or out of their Pi, and why do they need it? I can't collect data anywhere near that fast from any devices connected to my Pi. If I could I cannot get it over my internet connection or mobile connection. Encrypted gigabit ...
by ejolson
Fri Aug 16, 2019 4:45 am
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 205
Views: 10024

Re: Why moving to 64bit?

Running AES (specifically focused on openssl speed -evp aes-256-gcm ) showed a major anomaly with 64-bit achieving half the throughput. I investigated and if you look closely at the compiler options above the likely reason is there. My understanding is that many of the 64-bit ARM processors have AE...
by ejolson
Fri Aug 16, 2019 2:12 am
Forum: General discussion
Topic: Fan failure?
Replies: 15
Views: 587

Re: Fan failure?

I think that there must be QUITE a bit of variation in the Pi4 boards. Most peoples' numbers track like yours, but I have talked to several others whose boards track like mine. When I first put mine in the Flirc case it was idling at about 57C in a 75F room(after the firmware update). The case was ...
by ejolson
Thu Aug 15, 2019 8:52 pm
Forum: General discussion
Topic: Fan failure?
Replies: 15
Views: 587

Re: Fan failure?

Hi, is connecting fan to the raspberry pi 3 b+ GPIO directly safe? I have my raspberry in home network and the CPU temperature +60C, so I decided to add a small fan and some heat-sink from online retailer. First I added fan and connect it to GPIO 4 & 6 (5v), the fan worked fine for two weeks and th...
by ejolson
Thu Aug 15, 2019 4:34 pm
Forum: Troubleshooting
Topic: Four dead Pis in one class!?
Replies: 15
Views: 590

Re: Four dead Pis in one class!?

The Explorer Hat, which is what the OP is using, does not support running the motors off of a separate supply. The royal road to robotics seems paved with good intentions. I guess there is a reason why it takes four years of higher education to train an electrical engineer. Fortunately, amateurs do...
by ejolson
Thu Aug 15, 2019 4:04 pm
Forum: Off topic discussion
Topic: Longest Raspberry Pi uptime
Replies: 90
Views: 54792

Re: Longest Raspberry Pi uptime

14:44:31 up 47 days, 19:22, 2 users, load average: 0.04, 0.06, 0.01 I so need to reboot but I can't. :mrgreen: :lol: Tell me about it. 15:19:20 up 406 days, 9:15, 1 user, load average: 0.36, 0.35, 0.34 I want to upgrade that Pi to Buster. I've done about half of mine so far. Long uptimes come from ...
by ejolson
Thu Aug 15, 2019 2:45 pm
Forum: General programming discussion
Topic: Liberation through Computer Literacy
Replies: 1095
Views: 41582

Re: Project Digital Apocalypse Not Now

This doesn't seg fault so I'm getting closer. The issue seems to be what I'm doing with updating the hash value. FYI: This HASH library is used internally by ScriptBasic's lexer. ScriptBasic HASH Extension Module Docs INCLUDE hash.bas hh = HASH::New() flen = FILELEN("tail.dat") OPEN "tail.dat" FOR ...

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