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6
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110
Joined
3 yr. ago

I once met a person that never drank water, only soft drinks. It's not the unhealthiness of this that disturbed me, but the fact they did it without the requisite paperwork.

Unlike those disorganised people I have a formal waiver. I primarily drink steam and crushed glaciers.

  • Nice, ty. I've only revenged PC firmware, not embedded, so I wouldn't think of several of those tools.

    I know a model of HP inkjet from my childhood that had a service/factory mode where ink checks were disabled. After years of claiming that its carts were empty I was suddenly able to print perfect full-colour pages. RIP HP Photosmart 3110

  • Congrats :) The idea that a few software bits are between you and getting a pile of junk working is infuriating. Did you extract and modify an image from flash or find a way in live?

  • Ditto with my printer. Print over LAN: sure. Printer connect to internet: hell no, that's the first-party version of printer malware.

  • USB/2.0 (4.0; Gen 2; rv:1.1) USB4.1 Gen 3x3 (FIREWIRE, like RS232)

  • I am not so sure that it will end up faster or better.

    **In theory: **A CPU scheduler should give programs as much CPU time as they want until you start nearing CPU resource saturation. Discord doesn't need very large amounts of CPU (admittedly it's a lot more than it should for a text chap app, but it's still not diabolically bad). It will only start getting starved when you are highly utilising all cores. That can happen on my 2-core laptop, but I don't have any games on my 6 core desktop that will eat everything. Nonetheless on my laptop I'd probably prefer my games take the resources (not Discord) and I'd happily suffer any reasonable drop in responsiveness of Discord as a result.

    I don't think that a new process (a new dedicated browser-client) instead of a new thread (tab in existing browser) is intrinsically faster or better. CPU schedulers are varied and complex, I wouldn't be surprised if any differences in performance measurements would end up down in the noise. If anything the extra memory usage might cause more IO contention and memory starvation, making everything slower rather than faster. But this is all conjecture, so don't give it much credit.

    Basically, it’s faster to focus on painting a single canvas than it is to painting 3 at the same time.

    I don't think that's much of a problem in practice, at least for Firefox: one tab can crash and stop rendering completely (or lock up 100% of 1 CPU core) but the others will keep going in other threads. For the most part they shouldn't be able to affect each other's performance.

    In practice: What's the actual metric that you think will be better or worse? I assume responsiveness to typing and clicks in the discord UI?

    I've never seen discord lag or stutter from causes other than IO limitations (startup speed, network traffic, heavy IO on my machine) or silly design (having to refresh the page after leaving it open all day, I suspect it's intentionally auto-disabling but I'm not sure). That's not something that running a separate discord client in a separate dedicated/embedded browser will fix.

  • https://halestrom.net/darksleep/blog/054_nvme/

    Summary: two Silicon Power P34A80's died within a few months of use, the second one was the warranty replacement of the first. In both cases sectors suddenly became permanently unreadable.

  • "Thou has missed daily prayers for two whole weeks"

  • Smart locks are worse. They have all the insecurity of a regular lock, plus more methods of insecurity, plus more failure modes that will shut you out of your house.

  • In Kerbal Space Program your ships sometimes catch the NaN virus. If one fuel tank level is reading NaN then whatever you do DON'T try and fill it from another (full) tank. I'm not sure if it can spread to physics (thrust, mass, etc) EDIT: Yes it can happen to physics, oh dear.

    I wonder what would happen if you landed a NaN-infected spaceship on a planet.

  • "The formerly successful website known as Twitter"

  • Transactions per second. Bitcoin is slow and expensive to get your transaction "approved".

  • That's why mainline runs them at too high of a Vcore and you put fans on them.

  • Never use an SoC that's not at least 5 years old ;)

  • We already have memory wafers glued to our CPU wafers in the form of L3 cache. It's lower latency, higher throughput, up to a few hundred MiB in bigger models and can potentially be used without external RAM sticks (but I've not heard of using that feature outside of BIOS firmware early boot -- that's probably the only change we'll see). Sometimes it's DRAM, sometimes it's SRAM, its size varies quite a bit.

  • Agreed - you need to tell users why you exist, don't expect them to know everything.

  • Conversations

  • Sorry for the late reply, tied up. Thankyou for the photos.

    The Z-axis leadscrews look OK in the photos (nothing obviously wrong). That's a very clean and new printer.

    Q1. Is there any grease on those Z-axis leadscrews (tall metal spiral rods) or are they completely dry?

    Q2. If you force your printer to move up and down does it make unusual noises at some parts of its travel height? You can try typing thing g-code into your printer monitor software to make it move up and down:

     
        
    G0 Z100 F1000   (move to Z position 100mm.  You won't actually travel at 1000mm/minute, instead the printer will do whatever it's max is)
    G0 Z0 F1000    (move to Z position 0mm, ie nozzle touching the bed)
    
      

    You may need to home the axes first (G28)

    Q3. Are these screws on both sides properly tight? I think I might possibly see a gap under one, but it could also be an optical illusion from reflections.

  • The fact the lines are at the same height between different jobs suggests something is wrong with your Z axis. Can you post photos of your printer, including the Z rails and/or screws?

  • Aerodynamic drag increases with the square of speed. Other frictional losses might follow a similar pattern.

    Cars have other sources of inefficiency too (such as idle power consumption), so all cars have a different optimum speed for maximum range (which depends on wind speed, direction & temperature too).