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pedrocr

7,362 karmajoined 17 ปีที่แล้ว
http://pedrocr.net meet.hn/city/41.1494512,-8.6107884/Porto

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pedrocr
·เมื่อวานซืน·discuss
> The computer I'm writing this on has 64 GB of RAM, 1024 times as much. By comparison I have a 20-core Intel CPU with up-to 3GHz speed or somewhere around there, even pretending each core could run at that max speed simultaneously (which they can't), that's only 133-times as much CPU power.

Over that time CPUs have also increased their instructions per clock by 3 to 4 times, so the comparison is a bit closer than that. 5Ghz in CPUs is also common these days which would make it even closer. RAM has also improved in more than just total size though.
pedrocr
·9 วันที่ผ่านมา·discuss
It was still more secure than the default if I understand this correctly. On resume from suspend the laptop would still be locked by the encryption key and without access to the disk even if you can somehow circumvent the lock. The only insecurity was that somewhere in the kernel memory the key still exists so if you can somehow extract that from the live system you can unlock it.
pedrocr
·เดือนที่แล้ว·discuss
+ battery too. I've wondered if a mini pc with battery would make for a good form factor. I often move between places where I have a desk with a screen but still use a laptop because I want to just suspend and resume. If a mini pc had a small battery just to hold its RAM while suspended I could move between places and just plug in a single USB-C cable and have my full workstation up and running. The thermals could be better than in a laptop and having a built-in UPS better than with a desktop. But last time I checked no one packaged things like that.
pedrocr
·เดือนที่แล้ว·discuss
In the AMA you link they say the tulip mania was probably a bubble just not a major one that impacted the economy meaningfully.
pedrocr
·3 เดือนที่ผ่านมา·discuss
That seems wrong. If you have a way to maintain enough propulsion for long enough you can escape the gravity well at any arbitrarily low speed. You "just" need to maintain that speed long enough for the escape velocity from the gravity well to go below it as it diminishes with distance from the mass.
pedrocr
·4 เดือนที่ผ่านมา·discuss
There seem to be some 15 inch all-in-ones but these days if what you want is a small form factor the answer is surely a laptop. Even if you're just going to keep it on the same desk forever that's what you'd get if you want 15 inch or smaller.
pedrocr
·5 เดือนที่ผ่านมา·discuss
I once made a criminal complaint because of a sewer line that was frequently allowed to overflow into a creek. The prosecutor refused to prosecute the case with the argument that the root cause was "real estate pressure" and so the county (that licenses and taxes any new construction) and the sewage operator (that coercively charges anyone that can physically connect) couldn't possibly be blamed.
pedrocr
·5 เดือนที่ผ่านมา·discuss
Another advantage is you can place the fans all along the wing getting you better stall resistance as the flow doesn't detach as easily. There's already a prototype of a hybrid plane that does this:

https://www.electra.aero/
pedrocr
·6 เดือนที่ผ่านมา·discuss
One of the authors of this paper did a pretty long podcast with Huberman about this topic:

https://www.hubermanlab.com/episode/red-light-to-improve-met...

The show notes have links to quite a few more papers. I have no idea if this is good science but this is not just a one off paper.
pedrocr
·7 เดือนที่ผ่านมา·discuss
That's great if you're compiling for use on the same machine or those exactly like it. If you're compiling binaries for wider distribution it will generate code that some machines can't run and won't take advantage of features in others.

To be able to support multiple arch levels in the same binary I think you still need to do manual work of annotating specific functions where several versions should be generated and dispatched at runtime.
pedrocr
·7 เดือนที่ผ่านมา·discuss
I'm curious if that's still the case generally after things like musttail attributes to help the compiler emit good assembly for well structured interpreter loops:

https://blog.reverberate.org/2025/02/10/tail-call-updates.ht...
pedrocr
·9 เดือนที่ผ่านมา·discuss
This seems to be the Ubuntu bug report:

https://bugs.launchpad.net/ubuntu/+source/rust-coreutils/+bu...
pedrocr
·7 ปีที่แล้ว·discuss
Getting a projector is a good option these days. They're cheap and can give you a home theater experience with easily twice that size. Just measured my setup and it ends up at ~130" diagonally.

There are limitations in the room you can use (not too bright, big white wall, good place to place the projector). But if you can manage it I strongly suggest it.
pedrocr
·7 ปีที่แล้ว·discuss
I'll believe Microsoft loves Linux when I can install Microsoft Office in my desktop Linux machine. Everything else is marketing.

Edit: to expand, the corporate world runs on Excel/PowerPoint/Outlook. Microsoft milks them on Windows/Office licensing and is very aggressive against organizations that try to do Linux deployments. They're a convicted monopolist that got away easily when at some point the option on the table was to split OS and Office into two different companies. If they want to continue to use Office to keep Windows dominant that's their strategy. WSL and their other "love Linux" efforts are all about making sure developers stay on Windows. If you want to do all that fine but don't patronize us by then claiming you love Linux.
pedrocr
·8 ปีที่แล้ว·discuss
> but almost never open untrusted .sqlite files

You may not notice that you do when apps use sqlite as their file format:

https://www.sqlite.org/appfileformat.html
pedrocr
·16 ปีที่แล้ว·discuss
>But from a practical stance, what's the benefit? What would it achieve?

The reasons I outlined in my post were things like having a single form validation codebase, deployed both server side and client side. More ambitiously you could have the same codebase used for the server-side online portions of something like gmail and also retarget that to use for offline gmail. Basically the big divide between your server-side and client-side codebases would start to disappear.

Seems like Google's native client system is a great step in this direction. Soon enough it may be possible to target say Lua to LLVM bytecode and deploy that to a browser in a bundle of javascript. If the browser supports NaCi you execute the LLVM bytecode with the built-in VM, if not you have a fallback bytecode interpreter in Javascript. That way you get full coverage of browsers with only degradation of performance when NaCi isn't available. I'm not sure however how fast you could make the Javascript fallback. If it is very slow it may not be workable.
pedrocr
·16 ปีที่แล้ว·discuss
I tried to make this point in this submission:

http://news.ycombinator.com/item?id=1790311

The fact that it also ranted about Javascript shifted the discussion though