cperciva

19 ms·

331.
by cperciva 2y ago
You can do this with e.g. EC2 enclaves. Of course that's kind of begging the question, since you need to trust the enclaves.
332.
by cperciva 2y ago
popcount is a very historically special case To elaborate a bit on the specialness of popcount: It is a generally accepted belief in the computer architecture community that several systems included a popcount iNstruction Solely due to A
333.
by cperciva 2y ago
Its Suspend to Disk (S3) S3 is suspend to RAM. Suspend to disk is S4.
334.
by cperciva 2y ago
It's unfortunate, certainly, but it's probably very useful for police to have knowledge of and experience with the communities they're policing. In Canada police officers who are expected to work with indigenous communities
335.
by cperciva 2y ago
Yes, but union seniority is about getting paid more to do the same (or less) work; not about being promoted into different jobs.
336.
by cperciva 2y ago
Japan, with its rigid schedule for promotions, effectively does this. Westerners often laugh at Japanese companies privileging seniority over demonstrated ability, but maybe they're on to something.
337.
by cperciva 2y ago
I'm not too worried about that -- this paper is "mirrored" on hundreds of university websites since it's a common reference for graduate courses in computer security.
338.
by cperciva 2y ago
Paper is here: https://www.daemonology.net/papers/cachemissing.pdf Your link is the website I put up for non-experts when I announced the issue.
339.
by cperciva 2y ago
In 2005, my paper on breaking RSA by observing a single private-key operation from a different hyperthread sharing the same L1 cache -- literally the first publication of a cryptographic attack exploiting shared caches -- was rejected from
340.
by cperciva 2y ago
In addition to building filesystem images, a common use of root for operating system building is to chroot into a "clean" environment to avoid environmental corruption. (In general, chroot is reserved to uid 0 due to issues with
341.
by cperciva 2y ago
Ah yes, I have my target set to 100. IIRC the first off the shelf closed loops were hardwired to 120 but newer ones are configurable.
342.
by cperciva 2y ago
Androidaps says I'm 85% within 3.9-10.0 (70-180) in the past week. I enter carbs but only to a resolution of 10g; and as I mentioned earlier I sometimes forget to enter them entirely. Are you using a Dexcom with your omnipod? My impr
343.
by cperciva 2y ago
Closed loop. Seriously, my t1d-related mental exhaustion is 90% reduced now that I'm using a closed loop. 95% if you don't count the "why did androidaps disconnect from my pump and which bit do I need to restart to get it w
344.
by cperciva 2y ago
I don't know about "nearly got shot down". They were escorted to a different airport and ordered to land, but despite several miscommunications they followed instructions and landed safely.
345.
by cperciva 2y ago
Huh, I wondered why it was flagged. Seems like a sensible comment regardless of the author, though.
346.
by cperciva 2y ago
It does, doesn't it? This might say something about English authors -- a lot of them went to Oxford or other places heavily inspired by Oxford.
347.
by cperciva 2y ago
When I was in Oxford, almost all the students went home for Christmas -- for the domestic students it was easy to travel, and most of the international students were wealthy enough that the cost didn't matter to them. I came from a mi
348.
by cperciva 2y ago
Yes, that's what said. Fork doesn't copy the data but it does copy the address space . For a large process (say, a database with multiple GB of data) that's a lot of paging tables -- many MB of them if you're using
349.
by cperciva 2y ago
Well established pattern. See e.g. in Chromium: https://chromium.googlesource.com/chromium/src/+/HEAD/docs/l... (I don't think the Chromium developers invented it either, it's just a conv
350.
by cperciva 2y ago
The "clone the entire address space and then call exec" idiom is indeed wildly inefficient -- that's why the horror which is vfork was invented -- but I'm not convinced that putting everything which sits between fork and
351.
by cperciva 2y ago
The "alleviated under conditions the person considers acceptable" clause is very broad, but doctors have to first agree that the person is suffering intolerably, so it's not entirely a blanket clause.
352.
by cperciva 2y ago
Indeed. I learned Quebecois in school and when I started speaking it in Paris I got confused looks and "... do you speak English?"
353.
by cperciva 2y ago
Probably not exactly what OP means by "side project" but in 2006 I started working towards getting FreeBSD running on EC2, and I got it working in 2011; I've been the maintainer of the FreeBSD/EC2 platform ever since. Th
354.
by cperciva 2y ago
The first prototype Lithium Ion battery was 1985. I'd say that was a pretty major invention considering how many devices use them now.
355.
by cperciva 2y ago
The FreeBSD Update client is about 3600 lines of sh code. Not huge compared to some of the other programs mentioned here, but I'm inclined to say that "tool for updating an entire operating system" is a pretty hefty amount o
356.
by cperciva 2y ago
I would say that it's still inauguration day even if it's the start of the second term?
357.
by cperciva 2y ago
Thanks! That's the context I was looking for -- whether the date was written into the law or an accident of where N days after event X landed.
358.
by cperciva 2y ago
Sure, but we've known for decades when inauguration day was going to be.
359.
by cperciva 2y ago
Is it a coincidence that the deadline expires the day before Trump takes office?
360.
by cperciva 2y ago
We have more to go on than binary though. Hexadecimal "digits" are universally known as "hexits", not "hexats" -- so "it" must be the suffix, not the "t" by itself.

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