zsmi

6 ms·

1.
by zsmi 5y ago
That why the solution is to only allow speculation when it's "ok". M1 is believed to have a number of Spectre-esq security mechanisms built into it to determine just that. For example: https://patents.google.com
2.
by zsmi 5y ago
There was another paper last year that showed something similar, and it went into way more detail on what TRR actually is. TRRespass: Exploiting the Many Sides of Target Row Refresh https://arxiv.org/pdf/2004.01807.pdf
3.
by zsmi 5y ago
>>> With a stock Linux you never see anything even close to all those catastrophes. >> What is a stock Linux? > Anything considered stable. https://en.wikipedia.org/wiki/Tautology_(logic)
4.
by zsmi 5y ago
> Again, I'm not interested in an OS flamewar. That Apple's products are subpar is a fact at this point That second sentence seems like it was specifically crafted to start a flame war to me. You don't even mention on wh
5.
by zsmi 5y ago
> With a stock Linux What is a stock Linux? Want to be amazed. Check this out: https://en.wikipedia.org/wiki/List_of_Linux_distributions I mean, there are family trees...
6.
by zsmi 5y ago
> Is the correct value for a Ponzi scheme really determined by the most recent dollar they took in? I wouldn't say a Ponzi scheme should be valued by this dollar. It should be valued by the next dollar that someone is willing to pu
7.
by zsmi 5y ago
I think most stalls are actually shared so when your neighboring stall is occupied you'll get less power. Stations are more crowded these days so it's getting common. Anyway, it doesn't actually diminish your argument, esp
8.
by zsmi 5y ago
This is why it's fun to know the history of math. The complex plane was introduced by Caper Wessel in a paper that was published in 1799 so it would've existed before vector notation. My guess is by the time vectors got popular th
9.
by zsmi 5y ago
I really enjoy looking into the history of mathematics and physics. I think it gives one a much better appreciation of why things are defined the way they are, and also the limitations of those definitions. There is a really great book on
10.
by zsmi 5y ago
Another interpretation is: On the first, you think you know what it does, but you're not sure. So maybe it gets looked up. On the second, you know you don't know what it does. You so know to look it up. Personally, I'll tak
11.
by zsmi 5y ago
>> homework > This is one issue that I'm passionate about. Research increasingly implies that homework is probably harmful in elementary; of dubious value in early middle school; and only valuable in high school and beyond. Is
12.
by zsmi 5y ago
For many of us in manufacturing the deadlines are very real. I actually like them. I do my best work under deadline as it forces me to focus.
13.
by zsmi 5y ago
This is a very active area of research. It's quite technical though so it takes a good amount of study to get into it. https://en.wikipedia.org/wiki/Silicon_photonics https://en.wikipedia.org/wik
14.
by zsmi 5y ago
Also, if you want to be a "chip designer" then you can work for a fabless company too. They're basically everywhere.
15.
by zsmi 5y ago
Baker http://cmosedu.com And Weste http://pages.hmc.edu/harris/cmosvlsi/4e/index.html are both very good. Weste is used in more Universities but it also has a digital slant to it.
16.
by zsmi 5y ago
I think it probably depends on what "produced" means here. If it means designs inside an EDA environment, design get submitted and shows up realized, then that is possible now. And it's not all that expensive. eFabless chip
17.
by zsmi 5y ago
Wow. I thought everyone knew they drive trains.
18.
by zsmi 5y ago
The CVE is reserved at this time so it's hard to be sure. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0146 They're not impenetrable per se, but iPhone is pretty secure, even with physical access.
19.
by zsmi 5y ago
Was it in California and what year was it? It's well known in the valley recruiters from various companies put the kibosh on many offers to prevent talent from moving around. There were some big lawsuits on it.
20.
by zsmi 5y ago
In theory DDR5/LPDDR5 added a controller command for RowHammer mitigation but I haven't had time to research it yet. See: https://arxiv.org/pdf/2108.06703.pdf
21.
by zsmi 5y ago
> Also, putting the emphasis on the interviewer understanding the candidates code instead of the other way around is never going to be popular It's also hard to scale it, make it objective, and keep the efficiency high (most develop
22.
by zsmi 5y ago
> Isn’t the time spent memorizing leetcode similar to the time spent building a side-project? The nice thing about leetcode it is easy to bound the time to what you can handle. I do one puzzle a week and set a timer for 20 minutes. The
23.
by zsmi 5y ago
There was a good paper on it in 2014. [1] They describe the RowHammer attack as: opening and closing (activation and precharge) a DRAM row (aggressor row) at a high enough rate (hammering) such that it can cause bit-flips in physically near
24.
by zsmi 5y ago
> Rowhammer is a physical flaw in how memory cells in DRAM are laid out It's not really a flaw, more like a consequence of how memory cells are laid out. I mean most people want lots of bits in their DRAM. Maximizing this paramete
25.
by zsmi 5y ago
> co-CEO of Waymo who publicly claimed he's willing to trust his kids' lives to a driverless car. So are lots of families in Chandler, Arizona
26.
by zsmi 5y ago
> If someone asked you the best way to become a good mechanical engineer, I bet you’d tell them to start building something. Actually, I would ask them to be more specific. And the more specific they can describe the goal the more likely
27.
by zsmi 5y ago
The top bin in the first link was labeled $187K and the bins are at least $13K wide so it's possible there might be a data point at $193K (probably a bit higher) which is not so far from $200K/yr as a new grad, according to the gl
28.
by zsmi 5y ago
Totally agree. I read the article as, when I am on my M1 I often experience memory pressure related issues. Not, because of my M1 I often experience memory pressure related issues. It's very likely future software updates can help ad
29.
by zsmi 5y ago
Thanks!
30.
by zsmi 5y ago
> But when I looked at the blog post date it was from 2012!! Hopefully you wrote the Thank You anyway as they're probably still around. P.S. Do you still have the link to the blog post?

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