rrss

63 ms·

631.
by rrss 7y ago
Regardless of relative safety, it's really easy to kill yourself with 120 vac (170 v peak). It's probably also easy to kill yourself with 120-170 vdc. AC in houses is an artifact of the difficulty (until recently) of stepping up&#
632.
by rrss 7y ago
> there is no way to know as a kernel if two things that are security sensitive relative to each other The kernel has a way, and it is process isolation. The kernel doesn't care if you want two threads in the same process to be isol
633.
by rrss 7y ago
> SpaceX didn’t “refuse” to move the satellite > they ... declined for reasons "Declined" and "refused" are synonyms. SpaceX did refuse to move the satellite.
634.
by rrss 7y ago
What's terrible about it? It says the same as yours. 1.25/0.25 = 5
635.
by rrss 7y ago
That's per year per watt, though. A fridge made prior to 1990 probably uses 1000-1500 kWh/year, and one made more recently probably uses 300-500 kWh/year. There's $70+ per year.
636.
by rrss 7y ago
Holmes seems like a pretty good counterexample. PS when you copy and paste wikipedia you should say so.
637.
by rrss 7y ago
> On-GPU firmware is not that interesting or concerning So people don't like it if kernel drivers are closed source, but if all the functionality is moved to firmware and the open kernel driver just pokes the closed firmware that do
638.
by rrss 7y ago
> if you look at something like the internet today and consider how it's changed in twenty years, it's barely recognizable in capabilities. I'm not a internet/web person, so forgive me, but: The internet today seems a
639.
by rrss 7y ago
I didn't write anything about humility. That you refer to the 'advertising industry' instead of the 'technology industry' proves my point, no? technology of the 50s and 60s: transistor, television, satellites, compu
640.
by rrss 7y ago
Help me brainstorm here (genuinely): I'm trying to think of innovations in the last few decades, but everything I can think of is a refinement of an technology invented 50+ years ago (mostly at bell labs) made possible by the exception
641.
by rrss 7y ago
In the 50s and 70s, people trying to make ads effective didn't try to pass themselves off as technologists or innovators. Don't take @iamdevloper too seriously.
642.
by rrss 7y ago
Vim isn't ad-supported. Vim has one messsage that you might consider an ad, and the money doesn't support vim's development, it goes to charity. I think it also used to be possible to donate to vim directly to support the dev
643.
by rrss 7y ago
Great, cool. Did he actually create value at Google or Uber, or is his primary skill just convincing Page and Kalanick to give him money?
644.
by rrss 7y ago
Is levandowski actually exceptionally talented, such that one of him is worth 120-600 other employees? What has he actually accomplished? All I've read is that he built a self-driving motorcycle for the Grand Challenge, but IIRC his mo
645.
by rrss 7y ago
Yeah, that makes a lot of sense, thanks. Thanks again for writing these articles, I very much appreciate them.
646.
by rrss 7y ago
Because Taiwan recruited Morris Chang to help promote Taiwan's economy, and Morris Chang decided to found the first foundry (i.e. fab-only) in the world. Ever since, TSMC has been more-or-less leading innovation in semiconductor manufa
647.
by rrss 7y ago
Thanks. Sorry if I'm being thick, but I'm still having trouble seeing where the pattern for nops is coming from, in this example from the post: /- eligible | /- actual
648.
by rrss 7y ago
Yeah, checked for permissions in hardware, but not by an IOMMU. Requests from the GPU are forwarded to the "standard" SMMU. See http://www.ieee-hpec.org/2018/2018program/index_htm_files/13...
649.
by rrss 7y ago
Thanks for writing this, BeeOnRope! I'm not all the way though it yet, but I'm having trouble understanding the "eligible" column. There are a few nops with a nonzero entries, and I haven't been able to figure out t
650.
by rrss 7y ago
I'm sure they wrote a new backend for tensorflow that targets their API. Since the hardware is only for ML, it wouldn't make sense for them to bother trying to implement OpenCL.
651.
by rrss 7y ago
"Inlining is a gateway drug^H^H^H^H optimization"
652.
by rrss 7y ago
> won't guarantee that some other thread of execution won't change the value under your nose My understanding is that compilers can always assume that there is no other thread involved, which (part of) why C11 atomics are neces
653.
by rrss 7y ago
Yes, every chip of moderate size does this. Selling floorswept chips as lower performance SKUs is very common.
654.
by rrss 7y ago
Rome exists in a gray area between "single integrated device" and "9 integrated devices tightly coupled together."
655.
by rrss 7y ago
> entire first day to non-semi companies: Amazon, Google, Microsoft They've given the entire first day to the semiconductor divisions of these hulking behemoths.
656.
by rrss 7y ago
> It doesn't make any sense to sell part of your company to a random set of people, just to pay them back over time. It's unfortunate that this doesn't make sense to you, because that it literally the original purpose of s
657.
by rrss 7y ago
Maybe one of the write ups of AMD's presentation at hot chips next week will have what you want. To be honest, though, I don't see a substantial difference between the haswell article you linked and the Zen 2 article, provided you
658.
by rrss 7y ago
https://www.anandtech.com/show/14525/amd-zen-2-microarchitec...
659.
by rrss 7y ago
I went ahead and modified the author's second benchmark (used to compare linear vs binary search) to iterate over various choices over words, rather than just searching for one word 10000 times (which may be the first on one run and th
660.
by rrss 7y ago
I'm pretty sure I was part of the "resurgence in people advocating for the use of the minimum time recently," and I'll tell you right now that I did not have a "benchmark" that varied by 7x from run to run in m

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