movq

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Recent twts from movq

QOTD: Hello Linux users, what do you use to monitor your network traffic?

As you can see in most of my screenshots, I have a widget at the top of my screen that shows the current bandwidth usage:

https://movq.de/v/303e1b1cad/a.jpg

But what does that tell me? What do I do when I see a sudden spike and I don’t know where it’s coming from? 🤔 I don’t have an answer for that. I’d like to have something like a summarized log of the recent network activity of all processes.

Something like tcpdump doesn’t help here, because the traffic is often already finished when I notice it.

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After a bug in the Open Watcom OS/2 resource compiler has been fixed (imagine that – they still fix bugs related to OS/2! 🤯💚), I was able to make some more progress with the OS/2 GUI version of my little disk usage tool. It now has a menu bar and a dialog to open another directory:

https://movq.de/v/2ea508ef9a/MVI_7479.MOV.mp4

The video includes the ZMODEM transfer process of the 50 kB .EXE file from my laptop. It’s a bit lengthy, but I kept it in for nostalgia. 😅

Next up is probably multithreading: Do the disk scanning in a background thread so the UI doesn’t freeze. (This is running on a Compact Flash card, a real hard disk would be much slower.)

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In-reply-to » Wrote a little wrapper script that lets me use T in DOSBox as a generic editor. Works with twtxt, too! 😆 Only downside is that I can’t use X11’s copy-and-paste. 🤣

Proof! Irrefutable proof! 😂

(This is silly without copy-and-paste. 🥴)

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Wrote a little wrapper script that lets me use T in DOSBox as a generic editor. Works with twtxt, too! 😆 Only downside is that I can’t use X11’s copy-and-paste. 🤣

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In-reply-to » Alright, the Compact Flash adapter in my retro box works fine now. It allows me to switch disks way more easily, which, in turn, allows for more experiments. 👌

Well, it’s not pretty yet, but I’ve got a very basic GUI version of dusage going:

https://movq.de/v/9b1c7016f6/MVI_7449.MOV.mp4

To me, it’s just super cool that I’m able to write programs for OS/2. 😎 That operating system will always hold a special place in my heart, I guess. It ran on my Model 80 back then (and maybe even the Model 30, but I’m not 100% sure anymore) and thus a lot of my earliest memories about using computers are OS/2 related. (And DOS related, of course. I had a dual boot setup on the Model 80, believe it or not …)

Anyway, writing that little program got much easier after I’ve found this page which contains a lot of valuable information:

https://komh.github.io/os2books/

This is a collection of OS/2 books by a person who’s apparently quite active in the realms of ArcaOS (one of OS/2’s “descendants”).

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In case you haven’t seen it yet:

https://infosec.exchange/@harrysintonen/112196893735638837

I quote in full:

Probably the single most impressive entry from the #Revision2024 #demoparty : Remnants by Alcatraz

Here’s the whole intro executable for your convenience:

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

video: https://www.youtube.com/watch?v=A9jn6ExjDw8

pouet: https://www.pouet.net/prod.php?which=96536

This is absolutely crazy. 🤯🤯🤯

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Alright, the Compact Flash adapter in my retro box works fine now. It allows me to switch disks way more easily, which, in turn, allows for more experiments. 👌

At the moment, I mostly use one 128 MB CF card with OS/2 2.1 on it. That OS didn’t really have lots of network capabilities out of the box, so once again I’m using zmodem over a serial line to transfer data to/from other machines, just like I do with MS-DOS 5.0.

Tomorrow, I plan on doing some more work on my OS/2 GUI program. (Let’s see if I actually get to do it. 😂)

By the way, OS/2 2.0 turned 32 years today. 🥳



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In-reply-to » QOTD: How do you listen to your music?

@mckinley I almost feel like I shouldn’t reply because my setup isn’t very elaborate. 🥴

I have ~/music and then a folder for each artist. Each album gets its own subfolder. That’s pretty much it.

I usually use mpd for playing, sometimes mpv. I could use something simpler, I guess, but I’ve been an mpd use since at least 2009 and it just works. (I used Audacious, XMMS2, and, well, WinAmp before that. And sometimes MP3Blaster at the end of the 1990ies, but at that time I didn’t have a lot of music on my PC anyway.)

A long time ago, I had .m3u playlists for each genre, but I found that I don’t use that a lot. I usually just play what I’d like to hear right now.

As for tagging, I just do the basic things like artist, title, album name, so I get a somewhat meaningful display in ncmpcpp:

Virtually all the music on my hard disk is ripped from CDs that I physically own. The script that I use for ripping is ancient, like 17 years old. But it still works, so why bother. It apparently uses icedax for querying the CDDB and the actual ripping, then oggenc for encoding.

Probably the most elaborate/convoluted part of my sound setup is the use of LADSPA filters directly in PipeWire. I have crappy speakers and the filters do some EQ and maybe compression. That’s also super handy in today’s abundant video calls and also for watching movies. (I disable the filter chain if I switch to my headphones.)

https://www.uninformativ.de/blog/postings/2020-02-09/0/POSTING-en.html

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I keep coming across the claim that Windows NT and 2000 can run OS/2 programs (due to the shared history between IBM and Microsoft). And indeed, it works – to some degree:

This compatibility layer only applies to 16 bit OS/2 1.x programs:

https://en.wikipedia.org/wiki/Architecture_of_Windows_NT#OS/2_environment_subsystem

32 bit OS/2 2.x programs don’t run:

I wonder how many text mode 16 bit OS/2 programs still existed when Windows 2000 came out. 🤔 Was it really worth keeping this subsystem around for so long?

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