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zsmi

HN member
Joined
Tue, Mar 23, 2021, 6:46 AM UTC
HN karma
462
Public activity
202 items

About zsmi

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Recent public activity

  1. comment
    Comment #29233472

    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 exam…

  2. comment
    Comment #29232565

    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 Refres…

  3. comment
    Comment #29231920

    >>> 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_…

  4. comment
    Comment #29231838

    > 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…

  5. comment
    Comment #29231286

    > 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. comment
    Comment #29204638

    > 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 valu…

  7. comment
    Comment #29204349

    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 do…

  8. comment
    Comment #29203190

    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 notati…

  9. comment
    Comment #29203012

    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 limitat…

  10. comment
    Comment #29191310

    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 …

  11. comment
    Comment #29184804

    >> 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; a…

  12. comment
    Comment #29184535

    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. comment
    Comment #29183244

    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.wi…

  14. comment
    Comment #29183165

    Also, if you want to be a "chip designer" then you can work for a fabless company too. They're basically everywhere.

  15. comment
    Comment #29183106

    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. comment
    Comment #29182550

    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…

  17. comment
    Comment #29167929

    Wow. I thought everyone knew they drive trains.

  18. comment
    Comment #29167820

    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, …

  19. comment
    Comment #29167724

    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…

  20. comment
    Comment #29154275

    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. comment
    Comment #29154135

    > 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 o…

  22. comment
    Comment #29153936

    > 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 d…

  23. comment
    Comment #29153486

    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 (ha…

  24. comment
    Comment #29153302

    > 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 lo…

  25. comment
    Comment #29142946

    > 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