rrss

57 ms·

511.
by rrss 7y ago
Seems like these criteria miss the use case for mm_rb, one of the central red-black trees in linux. If you need to be able to store intervals (i.e. virtual memory areas) and do lookups based on any address in the interval, not just the base
512.
by rrss 7y ago
> (1948: Claude Shannon founds Information Theory and coins the term "bit") Shannon used the term in his 1948 paper, but IIRC it was Tukey that coined the term and suggested it to Shannon.
513.
by rrss 7y ago
I tried to ask this the last time Heliogen was on HN, but still don't understand the solution, so I'll ask again: You have four photodiodes surrounding the target, and 1000 mirrors aligned to reflect the sun toward that target. On
514.
by rrss 7y ago
> is that it's rarely called due to elision. Calling this 'elision' is a bit confusing, since the glibc developers use the term 'lock elision' to refer to hardware lock elision via Intel TSX extensions. What elim
515.
by rrss 7y ago
Even adjusted for inflation, the U.S. federal budget is far, far larger than it was in the 1960s. So much so that even though NASA's budget is now less than 0.5% of the federal budget, NASA still spends roughly enough money in a decade
516.
by rrss 7y ago
Was that the tradition of St Nicholas, the saint, or "Saint Nicholas"/Kris Kringle/Father Christmas = Santa Claus, the cookie-eating guy with a red hat thatdeveloped mostly after the 18th century?
517.
by rrss 7y ago
Saint Nicholas, the bishop who lived in ancient Greece, is a saint, venerated in every form of Christianity that has saints. I don't think that Santa Claus, the mythological person who lives at the North Pole and has elves to make toys
518.
by rrss 7y ago
https://en.m.wikipedia.org/wiki/List_of_assigned_/8_IPv4_add...
519.
by rrss 7y ago
Dupe of https://news.ycombinator.com/item?id=21803574 .
520.
by rrss 7y ago
Reminder of the last time Intel bought an AI startup: http://www.recode.net/2016/8/9/12413600/intel-buys-nervana--... . It's interesting that Intel is buying Habana when the intel/nervana NNP-T&
521.
Intel Acquires Artificial Intelligence Chipmaker Habana Labs(businesswire.com)
3 points by rrss 7y ago|1 comments
522.
by rrss 7y ago
But it will be 14nm+++++++++++++++++++++++++++++++++, so it's all ok.
523.
O(n^2), again, now in WMI(randomascii.wordpress.com)
25 points by rrss 7y ago|0 comments
524.
by rrss 7y ago
I don't agree. When that paper was written, "Google" referred to an academic research project, not a company. Page and Brin indicate that because other search engines were developed at corporations, they were "largely a
525.
by rrss 7y ago
I don't think there is any objective metric for whether Page and Brin where the last "truly happy" people, so I'm not sure what it means for that subjective statement to be just false. If Carr thinks they might have been
526.
by rrss 7y ago
Why is this any worse than wikipedia doing the same? Or is wikipedia asking for donations also a bad sign?
527.
by rrss 7y ago
> Is this guy also a millennial or is he just trying to emulate one? Carr was born in 1959.
528.
by rrss 7y ago
> they are permitted by regulation Where is the restriction to only those concerns? 47 CFR § 25.156 has some pretty vague language about "the public interest, convenience and necessity." Thanks for pointing out that the FCC is
529.
by rrss 7y ago
It wasn't a "radio license." It was an authorization to "construct, deploy, and operate a proposed non-geostationary orbit (NGSO) satellite system comprising 4,425 satellites for the provision of fixed-satellite service
530.
by rrss 7y ago
Last time this was in the news, there was another discussion on HN: https://news.ycombinator.com/item?id=20095462 . User 'twtw asked the following, with no responses: > Why didn't the IAU petition the FCC during
531.
by rrss 7y ago
> nobody knew who/where to contact someone to raise their concerns SpaceX had to get approval from the FCC to launch these satellites. There was a comment period intended to provide an opportunity to voice these concerns. I looked i
532.
by rrss 7y ago
60 satellites were launched on 24 may 2019. It looks like all the articles are after that, in response to people seeing the satellites in the sky.
533.
by rrss 7y ago
Looks like they're going to stick around for a while.
534.
by rrss 7y ago
> just got a light touch program review, while SpaceX got put through the ringer. Is this a reference to the Organizational Safety Assessments NASA announced in response to Elon Musk smoking pot on a livestream online? I don't think
535.
by rrss 7y ago
FMCW (mentioned by 'itcrowd) can determine distance.
536.
by rrss 7y ago
Thanks OP, this is a nice resource. One note, though. The presentation of IQ demodulation seems to mix up the real and imaginary components of the analytic signal with the electric and magnetic fields. Even if you skip the analytic signal a
537.
by rrss 7y ago
North Korea. Is this an actual question? Since technically the Korean War never ended, yes, there is a war.
538.
by rrss 7y ago
Are you certain? https://www.anandtech.com/show/9643/jim-keller-leaves-amd and https://www.youtube.com/watch?v=SOTFE7sJY-Q (along with everything else I've seen) indicate otherwise.
539.
by rrss 7y ago
Does the kernel allocate the physical page when it is read, or only when it is written to? My mental model was that the new VA pages are first mapped to the zero page as copy on write.
540.
by rrss 7y ago
You can do that with OpenCL or CUDA on any platform, it's just ridiculously slow because of the much lower bandwidth so nobody does it. GPUs can access their memory (GDDR or HBM) at 300-800 GB/s, but system memory at only 16 GB&#x

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