strstr

22 ms·

211.
by strstr 7y ago
Most engineers don't write code with hard performance constraints. Game devs probably need to be fighting to get every frame. For the bulk of the eng I work with the concept of StoreLoad reordering on x86 would be an academic distracti
212.
by strstr 7y ago
If cache coherence is relevant to you, I strongly recommend the book “A Primer on Memory Consistency and Cache Coherence”. It’s much easier to understand the details of coherency from a broader perspective, than an incremental read-a-bunch-
213.
by strstr 7y ago
I have skin grafts on ~30% of my body and donor sites on another large fraction (although not on the face). I’d be pretty excited about skin grafts that actually looked decent. It’s tricky though, since there is an uncanny valley: if it doe
214.
Ask HN: Guide to WebDev for Low Level Engineers?
5 points by strstr 7y ago|1 comments
215.
by strstr 7y ago
I can believe that (despite the obvious creepyness), since FB users have a knack for getting owned and spreading that ownage to other users.
216.
by strstr 7y ago
I’ve always sort of wondered why we don’t also manufacture more of the rare types of environments. Wetlands are hard to come by and getting more rare. Why not make more? Seattle’s Union Bay Natural Area was previously underwater, then expos
217.
by strstr 7y ago
I’ve always wondered if the home team advantage is mostly caused by sleep deprivation. I know baseball stadiums have idiosyncrasies (home run distance varies), but I’m not aware if anything similar for basketball. The home team advantage is
218.
by strstr 7y ago
This reminded me of https://slatestarcodex.com/2018/08/23/carbon-dioxide-an-open... . After reading it I started leaving either a window or a door cracked, but honestly did not notice a difference.
219.
by strstr 7y ago
Probably from tetraethyl lead, which wasn’t banned in common fuels until the 70’s in the US. That said, there are enough other sources of lead (e.g. old paint) that this isn’t guaranteed to be right.
220.
by strstr 7y ago
Wait, why does this make iOS better? This breaks the security guarantees I expected from the phone.
221.
by strstr 7y ago
That's sort of the classic interpretation of investment. AFAIK, the first question most people ask about investments is "what is the expected rate of return (relative to the risk)?". I would not describe my car as an investme
222.
by strstr 7y ago
There’s a clear narrative in favor of actively managed funds: they analyze the underlying stock and avoid stocks that are overvalued according to their fundamentals, and buy those that are undervalued. The consequence would be near total av
223.
by strstr 7y ago
At face value, full-thickness tears are different. Maybe you don’t need whatever muscle you broke in half, but that seems surprising. After reading the article I’m not sure what the outcomes actually are. Did the shoulder compensate and jus
224.
by strstr 7y ago
The CTF is staffed by volunteers who make up the problems. I wrote one in 2017 for the Google CTF Quals and found it very difficult to balance.
225.
by strstr 7y ago
People often write this up after the fact. Google’s CTF normally drops write ups (both their own and links to external solvers’) in some shared repository afterwards. Of course they won’t go play by play through everything they thought abou
226.
by strstr 7y ago
Yeah, evaluating stocks based quarterly reports accuracy always feels like a bit of a fools errand. The heuristic I use for dips in a stock is always “how many days of value did this erase?”. It keeps me sane when looking at large dips. The
227.
by strstr 7y ago
“Wealthfront disclosed to clients employing its tax-loss harvesting strategy that it would monitor all client accounts for any transactions that might trigger a wash sale – which can diminish the benefits of the harvesting strategy – but fa
228.
by strstr 7y ago
This isn’t surprising in light of [0]. The core statement in [0] is that american health costs are high. In particular, predictably high based on Actual Individual Consumption. [0] https://randomcriticalanalysis.com/2018&#x2F
229.
by strstr 8y ago
(It’s a book review.)
230.
by strstr 8y ago
Isn’t this definitionally NIMBY? Might not match modern usage of “all the housing all the time”, but seems in lines with the words as written.
231.
by strstr 8y ago
(They are quoting the article they are citing) Smoking cessation is clearly an advancement in public health. We've definitely gotten better at getting people to quit smoking (and helping them to do so). In this context, I read "me
232.
by strstr 8y ago
The law is messier than you would think. At least in WA (where I live) if a pedestrian steps out when it would be unreasonable to expect the car to be capable of stopping (e.g. you step out a foot in front of a car that is going the speed l
233.
by strstr 8y ago
Speed limits are pretty ineffective at reducing speed, although they are good at communicating expectations (which is one the issue here). Iirc the green book recommends road narrowing for slowing down drivers.
234.
by strstr 8y ago
That’s a lot of vitriol. Based on the photos of the cross walk it looks like it isn’t clearly labelled. There’s 3 signs you have to read in order to know what is going on. There should be a sign giving drivers an estimate of the appropriate
235.
by strstr 8y ago
If the filter type is right (as you mention) yeah that would make sense. If it vents outside though, not necessarily. Running the extractor would drop air pressure and pull from elsewhere (particularly bad during times with low air quality)
236.
by strstr 8y ago
I’m pretty surprised if they don’t leave speculatively loaded (and still correct) data in the cache. My understanding of speculation is that was sort of the point: often you won’t compute the right value (because you have to be right in eve
237.
by strstr 8y ago
This is probably just BadBIOS2[1]. If this is as common as it sounds someone will get a chip and do a teardown and the similarities to BadBIOS will be gone. [1] https://en.m.wikipedia.org/wiki/BadBIOS
238.
TPM-JS: Interactive Intro to Trusted Platform Modules(google.github.io)
32 points by strstr 8y ago|1 comments
239.
by strstr 8y ago
No, but charges are inverted for particles vs antiparticles.
240.
by strstr 8y ago
My understanding was that if you take the CPU out of spec (e.g. voltage) while in an enclave, you’ll get MCEs and the CPU either nukes your enclave or forcibly reboots (idr which). That said you can still shave it down and start FIBing if y

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