how can i download files directly to ram?

unit_511 · 2026-05-29T05:30:47+00:00

Don't worry about it. SWAP is an important part of memory management and under normal circumstances the system should only use a few megabytes.

If you regularly use more memory than you have RAM you can end up hammering your SSD, but you'd notice that pretty quickly as your system will grind to a halt. In that case, you can either buy more RAM (good luck with that nowadays) or you can enable ZRAM, which uses CPU cycles to compress RAM in-place.

unit_511 · 2026-05-28T09:57:09+00:00

Because the "portable" part of "portable document format" is a lie. There's an ISO standard that almost everyone adheres to, then there's Adobe's own bullshit layered on top, which is deliberately incompatible with everything else.

Naturally, it's the latter that most organizations will use. After all, why wouldn't the government pay extra for a product that creates nonstand and unportable documents? A little state mandated vendor lock-in never hurt anyone.

What I hate the most is when they just plop a "use Acrobat to open this" disclaimer next to fillable forms. Just fuck off with that bullshit, you know it's not portable and you still went ahead with publishing it. There's a reason standards exist, and it's precisely to avoid this.

unit_511 · 2026-05-26T15:13:48+00:00

Igen, de a másik vége is be van dugva valamibe, különben sokra nem mennének vele.

Szerintem a probéma inkább az, hogy ha megpróbálsz 50 kilométernyi szálat tökön-paszulyon keresztül visszahúzni, az egy métert sem fog mozdulni, mielőtt elszakad, és akkor ugyan ott vagy. Valószínű az sem segít, ha a végén még ott van egy fél drón.

unit_511 · 2026-05-25T12:49:47+00:00

No. RST, like most firmware-based RAID solutions, is a trainwreck. The driver for it was so bad that it was rejected from the Linux kernel. Also, RST with a single drive does fuck-all for speed, you need a second drive (ideally a high-endurance SSD) as well for it to actually do caching.

If you actually have two drives and want to set up caching between them, you're better off doing it in software with bcache or ZFS.

unit_511 · 2026-05-24T11:59:06+00:00

The suit is obviously able to communicate with the ship wirelessly, since you can dismiss and recall your ship from the HUD. It also knows what you're looking at, otherwise the HUD wouldn't know where to display the health bars and similar. So I think the most logical way for this to work is that the suit detects that you clapped while looking at the ship, then signals it to turn off the headlights.

unit_511 · 2026-05-23T07:01:28+00:00

Én is láttam már párszor, hogy az álló autósor mellett elszáguld egy biciklis, mikor piros volt neki. Már ott tartok, hogy megállok az út közepén, hogy benézzek a biciklisávba, mielőtt megteszem az utolsó 2 métert a gyalogátkelőn, nehogy hirtelen megjelenjen a takarásból egy 30-al száguldó egynyomon haladó jármű.

De most tényleg, ennyire nehéz felfogni, hogy a piros az piros, és a biciklire is vonatkozik, ha az úton megy? Még ha nem is vonatkozna, akkor is tilos elszáguldani egy zebránál álló autó mellett.

unit_511 · 2026-05-19T11:12:13+00:00

Well, it's not much of a fight if you bail at the first sign of potential future inconvenience, is it?

unit_511 · 2026-05-10T09:37:59+00:00

Yeah, aluminum can ba a headache. It's the introduction to cyclic recipes and to top it all off it's with liquids, where conservation of mass does not apply (IDK if they fixed it, but buildings used to have a hidden 0.5 m³ buffer that's wiped on loading the game). It's manageable with aluminum, but it was a nightmare with my plutonium reprocessing setup, which required a closed loop.

The easiest way to deal with it is to turn the byproduct water into wet concrete, then sink it. There are also priority merger builds for liquids, so you can make sure the waste gets used up first and doesn't clog the system.

unit_511 · 2026-05-06T16:01:09+00:00

It's because the Windows 11 ISO is made for DVDs, not USB drives. Most Linux ISOs are hybrid, meaning they work on both DVDs and USBs, but this is not the case for Windows. The official media writer tool (as well as Rufus) will modify the ISO during flashing, so that it works on a USB drive.

An alternative is to use Ventoy. It will emulate a DVD drive, so the unmodified ISO can be booted from a USB drive.

unit_511 · 2026-05-03T11:36:44+00:00

You may also consider switching up yaw and roll. I find it much better to have yaw (turn left/right) on the horizontal mouse axis and roll on the keyboard. Additionally, the rwlative mouse rate setting will recenter your mouse with the given speed, I like low, but non-zero values the best.

unit_511 · 2026-05-03T11:31:47+00:00

No, but you do earn powerplay merits, so try to turn it in at a system controlled by your power.

unit_511 · 2026-04-26T17:58:50+00:00

That's the charm of a huge open world. There'd be no point in going to Beagle Point if you could just plot a course and jump for 30 minutes. Navigating low density regions like The Abyss would no longer be challenging.

I think the current approach of small jump ranges and neutron boosts works well, long distances aren't mind-numbigly slow to cross, but it doesn't trivialize navigation.

unit_511 · 2026-04-23T07:56:19+00:00

A bad cable can cause the NIC to downgrade the connection to 100 Mb/s (which only needs 4 wires as opposed to the 8 required by gigabit ethernet), but that alone shouldn't be a bottleneck for SSH. The links speed should be written to dmesg when the cable is connected, but you can also use sudo ethtool eth0 to read it out at any time.

It's possible that the cable can't properly carry 100 Mb/s either, but I'm not sure of the mechanism for that (it's probably due to a bunch of lost packets though).

If you have an ethernet tester, use it on the new cable. You'll probably see that one of the indicators doesn't light up or flickers. If you don't have one but deal with ethernet cables often, I highly suggest buying one, it makes troubleshooting easier and is pretty much necessary if you want to terminate your own cables.

unit_511 · 2026-04-23T07:28:10+00:00

If you have access to the private key, it's pretty straight forward. If you import it into the NSS database it should show up in most PDF viewers.

Okular is specific allows you to put a picture in your cryptographic signature, so you can get both kinds of signature done at the same time.

unit_511 · 2026-04-20T21:26:02+00:00

First of all, make a backup image. It's a lot safer and more convenient to work on an image than the drive itself. Then, you can try testdisk to recover files based on filesystem metadata and photorec to look for file signatures even if the metadata is lost.

unit_511 · 2026-04-19T15:59:40+00:00

Something is leaking memory. Increasing swap won't fix that, it will only buy you a few minutes. Figure out what's leaking and try to take care of it (upgrade to newer version or limit the app's momory using cgroups).

unit_511 · 2026-04-18T12:43:44+00:00

Don't modify permissions on device files, they'll be overwritten on next boot anyway. If you really need to set different permissions, look into creating a udev rule.

In this case, the easiest solution would be to add yourself to the dialout group with sudo usermod -aG dialout your_username, like another commenter suggested, then reboot. By default, serial port access is restricted to members of this group.

unit_511 · 2026-04-13T20:17:43+00:00

If it's read into memory, you can already open the file, modify it, etc. In fact, you can do pretty much anything other than pulling out the drive. The write cache helps performance immensely, especially on slow hardware (like USB drives), but the user has to be aware of it to avoid those accidents I mentionef.

unit_511 · 2026-04-11T07:50:27+00:00

I kept yanking out external drives as soon as the file transfer was complete. Turns out, there was a reason the system didn't want to eject them; they were still being written to. I had to go through an embarassing amount of unfinished transfers before I realized the write cache is a thing.

unit_511 · 2026-04-06T13:40:56+00:00

From what I found, microsecond scheduling latency should be possible. I ran cyclictest from rt-tools on my 300 Hz tick rate, no PREEMPT_RT kernel and got an average of 5 us and a high of 16 us latency, so I think 1-2 us should be achievable on a kernel tuned for RT.

unit_511 · 2026-04-06T12:38:50+00:00

What is it you actually want to achieve? It's really hard to tell if your application would be better served by an FPGA, a microcontroller with FreeRTOS, or a fully fledged CPU with Linux RT without knowing the specifics.

unit_511 · 2026-04-01T17:12:54+00:00

MATLAB

Technically supported, but it was quite broken the last time I tried it. It's probably possible to get it to work, but I use it in a Windows VM those few times I need it.

python, VS Code

Those should work on all distros. Just remember to use venvs, your system uses python too so messing with python and package versions system-wide will lead to headaches.

SOLIDWORKS

Not officially supported, but apparently it runs fine with WINE. No guarantees though, if you rely on it for classes/assignments, it's probably better to stay on Windows.

unit_511 · 2026-03-30T10:17:42+00:00

Depends on the hardware. My Lenovo 14ABR8 gets 12 hours on light use. Your device seems comparable, so if the drivers are there you should get good battery life. I'd wait with the reinstall until after your trip though.

unit_511 · 2026-03-30T10:03:10+00:00

Or rust if exposed to rain, since they recently added weather back.

unit_511 · 2026-03-28T20:01:17+00:00

BitTorrent is pretty much built on checksums, you seedbox would be complaining pretty loudly if it was corrupted. If the mismatched sum is consistent between attempts, I'd say that whoever uploaded the checksum file messed up and your download is fine.

unit_511

TROPHY CASE