Veserv

21 ms·

301.
by Veserv 1y ago
A fine introduction, but a few nits. Similar to how in the "POSIX threads" section you indicate that pthread_create() is UNIX/POSIX-specific, you should probably indicate in the "Creating new Processes" section that
302.
by Veserv 1y ago
It is unclear if it can even read signs at all. FSD, not Autopilot, on the current version can not read “Do Not Enter” and “Road Closed” signs and will entirely ignore them. It would be reasonable to assume it can not read any signs at all.
303.
by Veserv 1y ago
Then you were not listening [1]. Tesla covered up 150,000 suspension defects, affecting approximately 5% of cars, with literal thousands of actual failures in operation. They blamed their defective suspensions on the customers for years and
304.
by Veserv 1y ago
While PSP seems like a reasonable protocol on its own, it is such a prime example of the left hand not knowing what the right is doing. QUIC (over UDP) also requires encryption at its protocol layer in addition to encoding a encryption cont
305.
by Veserv 1y ago
No, you are not using the standard definition of a thread [1]. What you are calling a thread would normally be called a userspace thread, green thread, fiber, stackful coroutine, etc. Note the specific qualifiers distinguishing them from th
306.
by Veserv 1y ago
The bound on that is known to be no more than BB(745) which is independent of ZFC [1]. [1] https://scottaaronson.blog/?p=7388
307.
Tesla's 'self-driving' software fails at train crossings(nbcnews.com)
27 points by Veserv 1y ago|18 comments
308.
by Veserv 1y ago
A modern debugger would have made that trivial. Just turn on time travel debugging mode and you would have been done after the first time it occurred. Wait until the memory is corrupted and causes a crash. Set a hardware breakpoint on the c
309.
Tesla Optimus Impressing Salesforce CEO(twitter.com)
3 points by Veserv 1y ago|3 comments
310.
by Veserv 1y ago
In comparison, here are some highlights from the World Humanoid Robot Games in China shortly before that demo: https://www.youtube.com/watch?v=cqvFUx1sIYY
311.
by Veserv 1y ago
7 GB/s at 512 KB block size is only ~14,000 IO/s which is a whopping ~70 us/IO. That is a trivial rate for even synchronous IO. You should only need one inflight operation (prefetch 1) to overlap your memory copy (to avoid se
312.
by Veserv 1y ago
You appear to have a total misunderstanding of what I said and then went on to engage in a bad-faith accusation. First of all, it is convenient that you ignored the part about 20/120 vision which is below the legal minimum requirements
313.
by Veserv 1y ago
> Implying that driving just based on visual input is unsafe, when that is how all humans drive. Implying that driving just based on single-eye 20/120 vision [1] is safe, when that is in fact illegal. [1] https://news.yco
314.
by Veserv 1y ago
So when are they going to complete master plan [1], [2], or [3]? Master Plan 1 in 2006: "1. Build sports car. 2. Use that money to build an affordable car. 3. Use that money to build an even more affordable car. 4. While doing above, a
315.
by Veserv 1y ago
> First, the money you pay the copyright owner under a compulsory license is not damages. It is royalties. The rates for compulsory licensing cap your compensation and thus provide a reasonable cap on your compensatory damages. > Thos
316.
by Veserv 1y ago
The most ridiculous part of music copyrights is that the DMCA explicitly encodes statutory damages of at least 750$ up to 30,000$, and up to 150,000$ for willful infringement per work [1]. Yet musical compositions are subject to compulsory
317.
by Veserv 1y ago
That is what they did. Salt Typhoon is what they got. This will continue to happen until critical software systems are secure against state actors and requires tens to hundreds of billions of dollars to compromise instead of millions to ten
318.
by Veserv 1y ago
You only need to spend barely 7 zeros to defeat any organization in the world. About half of a single tank to defeat any commercial IT system no matter how much they spend on “security”.
319.
by Veserv 1y ago
This bad: https://vimeo.com/1093113127/e1fb6c359c Not just detect a pedestrian and plan a path through them. Hit a pedestrian and plan a path through them to finish the job.
320.
by Veserv 1y ago
Well because Elon Musk keeps making it. In January 2023, on the official Tesla earnings call, he said that FSD was currently overwhelmingly superior at autonomous driving than everything else in existence: "So who do we think is close
321.
by Veserv 1y ago
Still the same depraved head of neurosurgery, Dr. Matthew MacDougall, who said: "If tomorrow laws were changed and the FDA said okay you can do some of this early experimentation in willing human participants that would be a very inter
322.
by Veserv 1y ago
Large block reads are just a readahead scheme where you prefetch the next N small blocks. So you are just stating that contiguous readahead is close enough to arbitrary readahead especially if you tune your data structure appropriately to o
323.
by Veserv 1y ago
Green Hills Software Path Analyzer[1] and newer History[2] which likely invented or at least popularized the modern trace/callstack visualization used by Perfetto, Firefox Profiler, etc. Segger trace[3]. Lauterbach trace[4]. TI Code Co
324.
by Veserv 1y ago
This is just standard instruction trace. Intel has supported such capability via Intel Processor Trace (PT) since at least 2014 [1]. Here is a full trace recorder built by Jane Street feeding into standard program trace visualizers [2]. ARM
325.
by Veserv 1y ago
You are the one claiming it has a “safety record”. You are the one claiming “We're precisely less safe because of these regulatory requirements.” Support your assertion with scientifically rigorous, statistically sound evidence. And no
326.
by Veserv 1y ago
What safety record are we ignoring? Can you please cite some scientifically rigorous and statistically sound data, evidence, and analysis? Or are you talking about self-published numbers by the company that is proven to withhold, lie, and m
327.
by Veserv 1y ago
That is not at all a problem. On a microkernel you just have a userspace TCP/network server that your other programs talk to that manages/multiplexes the shared network connection.
328.
by Veserv 1y ago
That is only a problem if you do one or more syscalls per packet which is a utterly bone-headed design. The copy itself is going at 200-400 Gbps so writing out a standard 1,500 byte (12,000 bit) packet takes 30-60 ns (in steady state with c
329.
by Veserv 1y ago
Yes. msquic is one of the best performing implementations and only achieves ~7 Gbps [1]. The benchmarks for the Linux kernel implementation only get ~3 Gbps to ~5 Gbps with encryption disabled. To be fair, the Linux kernel TCP implementatio
330.
by Veserv 1y ago
Everything is events. The problem is that, as you notice, you frequently encounter situations where there are too many events to handle. Metrics, logging, and tracing are just three different ways to handle that problem. Metrics handles too

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