dmytroi

9 ms·

31.
by dmytroi 7y ago
Some parts of anti-nuclear movement hold a position "ban nuclear no matter what". But for example, what happened in Germany, is nuclear plants being replaced by coal and gas plants. Then discussion moved to if nuclear plant will b
32.
by dmytroi 7y ago
I've took it from [0]. It does seems like numbers are very approximate everywhere, but even than, let's take 29 trillion and distribute it between 327 million population: we get 88.6k$ per person, still not enough to buy housing i
33.
by dmytroi 7y ago
Numbers don't match though. It looks like there is physically not enough money to buy everything that is sold. For example: - There is a ballpark estimate that sum of all physical money in the world is 90.4$ trillion, let's distri
34.
by dmytroi 7y ago
I'm learning how to fly, and tell you what, cognitive overload is real. At first students have a hard time to coupe with stick/pedals, airspeed indicator and looking around for positioning / avoiding other planes. Having a &q
35.
by dmytroi 7y ago
Maybe. What we know factually at this point in time: osxfuse was BSD licensed, Google used it and haven't contributed back. osxfuse is popular project. If it was GPL licensed, do you think Google would bother to use it? Or would they w
36.
by dmytroi 7y ago
I'm starting to use TLA+ to verify lock-free algorithms. The tool is essential when all your code fits on the screen, yet you can't comprehend what is going on and miss a race here and there. So far it's more a personal inter
37.
by dmytroi 7y ago
I'm referring to a fact that before economical needs created unified time / measurement system / language, each region had their own language-dialect. For example Gallo-Romance languages and so on [0]. - [0] https:/&#x2
38.
by dmytroi 7y ago
As someone living in EU, there is a practical limit to this. Languages NEEDS should be satisfied: For example, a translator should be provided to someone not speaking common languages (for the area) trying to get medical care. But language
39.
by dmytroi 7y ago
Quick google shows that recycle rate is ~30% for PET bottles in US in 2015 [0]. Not obvious if the problem is that customers not returning/recycling bottles or that garbage just gets landfilled. Compare that to Nordics, where Norway ac
40.
by dmytroi 7y ago
Using heap as sole savior of stackless coroutines just doesn't scale. I'm working on a game engine, we can have 10-100k+ jobs running per frame, modern monitors have refresh rates of 144/240/300 Hz, so worst case: 30 mil
41.
by dmytroi 7y ago
I guess that is an artifact of 5 bit encoding (invented in 19 century), as all zeros define NULL, see [0]. - [0] https://en.wikipedia.org/wiki/Baudot_code
42.
by dmytroi 7y ago
Yes, but users rarely see real amount of virtual memory used (reserved, committed, etc). For example Chrome rendering process right now on my machine uses 267 MB of physical memory, 478 MB of committed virtual memory, and 2.1 GB of virtual
43.
by dmytroi 7y ago
If by aio you mean Posix aio - on Linux it's implemented with user space threads and blocking I/O. Posix aio on BSD systems is implemented as kernel space thread (aio_write/etc are syscalls on BSD, and glibc functions on Linu
44.
by dmytroi 7y ago
Yes, IOCP looks like true async I/O most of the time. While in reality it will block if file is cached, in cases if code tries to read something like 100+ MB at a time ReadFile calls can take 200ms+. So most "async I/O"
45.
by dmytroi 7y ago
Except that io_uring is threads running in kernel. There is no true async I/O on most (if not all) current platforms - it's all threads, either in user space or in kernel space. Sometimes even deliberately, for example polling dis
46.
by dmytroi 7y ago
I also started to fly gliders, and it would be lovely indeed to have electric self-launching glider, though unfortunately atm there are just too few of them, most popular are Arcus E and ASG 32 El, both are too new (cost a lot of money) and
47.
by dmytroi 7y ago
This is quite nice! I like the error handler monitor thing. Also quite amazing that they placed whole platform-independent (sort of) thread local storage implementation there.
48.
by dmytroi 8y ago
From my understanding, post processing is completely different, like anti aliasing used, HDR pipeline used, shaders overall used, etc. [1] goes into detail what exactly might differ. It's not like mobile phone is superior by any means
49.
by dmytroi 8y ago
IMHO Depends on the use case: - If glyph sizes are known ahead-of-time. Then use character atlas, generated either with CPU things or GPU things. This can be optimized for power consumption. - Glyph sizes are not known, or text is animated
50.
by dmytroi 8y ago
You can easily have 1 million coroutines in-flight (my humble testing was showing that PyPy Stacklet on i4980hq has speed around 10-20 million switches/per second/per core). While with native threads I think it's in ballpark
51.
by dmytroi 8y ago
Would be nice to compare performance with others libraries! For example Stacklet [0] and Boost Context [1]. - [0] https://github.com/mozillazg/pypy/tree/master/rpython/transl... - [1] https:/&
52.
by dmytroi 8y ago
How does one control runtime operations with this? Ok compiler/optimizer might have a notion of "fastest execution possible" (which most likely have some local time minimums). But what about latency/bandwidth relationshi
53.
by dmytroi 8y ago
With MacOS 10.14 / XCode 10 now it's 2012+ models only.
54.
by dmytroi 8y ago
> Lambdas are actually the only way to define functions. Oh, missed lambdas, that's great! > You can already link to C I mean, only on Nix-es, only in Sys-V-like ABI. What if I'm under Windows? What if it's not Sys-V? W
55.
by dmytroi 8y ago
Looks very interesting from ergonomics point of view: it is indeed does introduce useful tools like generics, type inference, pattern matching, which are very painful to do in C. Though it seems like the language misses on popular nowadays
56.
by dmytroi 8y ago
The post indirectly suggest creating domain specific language for solving dashboard presentation problem. In my opinion this shifts engineers focus to solve problems with-in provided domain specific language, which in the end resolves in jo
57.
by dmytroi 9y ago
Depends on a country, in Sweden you can move your mobile number to any telco, and anyone can look up your number and your home address using something like [0]. But yes, it is still tied to a country. - [0] https://hitta.se
58.
by dmytroi 9y ago
It is not AFAIK, this chip contains E51 and U54 cores, E51 from what I seen (when prices were public) costs $595000. --- Upd: some news articles still mention launch prices [0] - [0] https://www.eetasia.com/news/article
59.
by dmytroi 9y ago
You can get their MacBook Retina with low TDP cpu's already (A1534 model). Reality is - usage experience is hardly acceptable, everything is way too slow. Intel seems to be way above everyone in pushing performance/TDP. Apple migh
60.
by dmytroi 9y ago
As much as I would love to believe that I personally can sanely inspect all the code I run - I can't. One day I run apt-get install git and I have to trust all code that is being pulled to my machine (and there is a lot of code there)

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