peterabbitcook

7 ms·

1.
by peterabbitcook 17d ago
That’s a tough question. If your PLC is on an airgapped LAN, admin/admin is not great security hygiene but you’ve reduced most of the risk by airgapping. On my project the service I wrote was doing bidirectional communication with the
2.
by peterabbitcook 17d ago
A couple years ago I worked on a service that had to communicate with a Siemens S7-1500 PLC. Based on my experience with that project, none of what I’ve read recently about unsecured industrial PLCs is surprising. I opened Siemens TIA Porta
3.
by peterabbitcook 29d ago
What are your feelings about using initContainers and wait-for-it to skirt the thundering-herd problem?
4.
by peterabbitcook 1mo ago
It made me think of the “step on all the colored tiles without crossing your path” puzzles in Links Awakening! I wonder how the optimal path changes if turns are penalized as well as steps - in real life turning a lawnmower takes a lot more
5.
by peterabbitcook 2mo ago
So under most brewing conditions a nonzero amount of this microbe survive, but that count is 3 orders of magnitude lower what might be termed a “therapeutic dose?” What even is a good experimental design for probiotic tea? Brew -> agitat
6.
by peterabbitcook 2mo ago
Though I guess using @decorator semantics would make it look a lot like python-numba syntax
7.
by peterabbitcook 2mo ago
I think I’m a little skeptical. #pragma is a real keyword in C but # is just a comment in python - why not use a pythonic @decorator? Vendoring a library like this into an app seems like a lot more toil than just writing the native multipro
8.
by peterabbitcook 2mo ago
Where to stop is a pretty fuzzy question I suppose. In my world, I think the worst possible outcome would be a java.util.json library that does 50-95% of what I currently do with GSON or Jackson. In that scenario I still need an external de
9.
by peterabbitcook 2mo ago
Fick’s Law. The rate of absorption is proportional to the concentration gradient.
10.
by peterabbitcook 2mo ago
Reading this gives me considerable pause - I can’t think of many classes within the codebase I work on that don’t have @Slf4j at the top… Since there wasn’t a link to the source code in that post, can you help me understand this - for the S
11.
by peterabbitcook 3mo ago
In the Java-verse it’s also do-able with Guice. I’ve tried it with Dagger but bailed (square peg / round hole). I think I prefer Springboot AOP, especially with SpEL. The term “cross cutting concerns” is thrown around a lot when discus
12.
by peterabbitcook 3mo ago
I’ve dealt with a question that rhymes with this. Sonarqube or CodeQL reports might tell me what percentage of a repo is duplicated code, and a large percentage of that is in src/test/java I find that a lot of the time this is not
13.
by peterabbitcook 3mo ago
So it’s not UL listed? Do you need the 15V input to torch the capacitors and run the relays? Could I use a 5V USB ESP32 dev board instead, and just put a boost circuit or MOSFET on the relay load side for the explosion circuit when it need
14.
by peterabbitcook 4mo ago
Really cool visuals, thank you for sharing this. I feel like the importance of padding is a bit understated on this page - BLAS and LAPACK require LDA and LDB parameters, and you can definitely tune these to the page size of a particular sy
15.
by peterabbitcook 4mo ago
I’ve been skimming the source code and it looks promising for the stated use case. Wondering how to configure and set it up for a producer/consumer scenario where the producer puts compressed bytes on the wire and the consumer processe
16.
by peterabbitcook 4mo ago
I recently finished reading “The Smartest Guys in The Room.” This definitely rhymes with some of the “energy efficiency” shenanigans committed by Enron’s EES subsidiary.
17.
by peterabbitcook 5mo ago
If you decide to pivot based on the comments in this thread about this turning into UberDrugz, an underserved market adjacent to this space is LTL freight. For an example of this look for items on eBay whose shipping method is “freight.” As
18.
by peterabbitcook 5mo ago
mAh has always seemed silly to me as well. I get that the actual voltage of a battery is a function of battery charge %, load current, temperature and “other stuff”, but the battery designer/manufacturer knows all this… Why not just te
19.
by peterabbitcook 5mo ago
It seems like it’s quite HTTP-centric (like most of the web…). I didn’t see anything on the page about this - can it also intercept / “reverse engineer” service calls that go over gRPC or WebSocket? I’m guessing at least a partial “yes
20.
by peterabbitcook 6mo ago
I’m trying to wrap my head around the use case this was created for. If a python service dumps a numpy array to bytes and sends that as a payload to a C++ service, is that blob of bytes not interpretable by C++ as e.g. a struct with some si
21.
by peterabbitcook 6mo ago
I am curious, did you check how much your benchmarks moved (time and errors) if at all if you told the compiler to use —-use_fast_math or -ffast-math? There’s generally not a faster version of inverse trig functions to inline, but it might