dfrage

15 ms·

91.
by dfrage 7y ago
It makes a difference because Intel is a more attractive and more consequential target for researchers. AMD's market share in servers is minuscule and even declining a bit as of 19Q1 (?), and modest but increasing nicely in notebooks
92.
by dfrage 7y ago
Market share is a good answer, in x86 space alone per https://www.extremetech.com/computing/291032-amd-gains-marke... which I found without putting much effort into it, AMD's share in servers is negligible and eve
93.
by dfrage 7y ago
A friend and coworker of mine had a saying "Speed Kills" about trying too hard to make things fast while keeping the system robust. You most certainly can make more secure systems, as the merely superscalar and less intense CPUs
94.
by dfrage 7y ago
No out-of-order speculative execution, no bugs of this exact sort, expect maybe you'll find something in the odd corners of special features. As far as I know (don't follow them much) Atoms are based on the Pentium super-scalar a
95.
by dfrage 7y ago
Semiaccurate's theory, based on their impression that only 1-2 fabs are dedicated to 10nm, is that it has some of the things they're planning on using in 7nm, and they might as well make some chips to sell while they debug them.
96.
by dfrage 7y ago
> I don't think there have ever been an OoO CPU without speculation. To the extent I've looked at it, without reading original documents, the original OoO design that current systems are based on, the IBM System 360/Models
97.
by dfrage 7y ago
As I understand it, the Intel only vulnerabilities, Foreshadow/L1TF, and this set which I've not looked at the details of yet, are targeting specific Intel features, and there's no reason to believe a similar focus on the oth
98.
by dfrage 7y ago
Maybe because Intel has shipped a thousand more SKUs and millions more CPUs with Meltdown than ARM, for which the Cortex-A75 was a new design, and IBM, which doesn't ship huge numbers of either POWER or mainframe CPUs??
99.
by dfrage 7y ago
Erm, check out Wikipedia https://en.wikipedia.org/wiki/Meltdown_(security_vulnerabili... and follow the links? Meltdown is CVE-2017-5754, see: https://developer.arm.com/support/arm-security-update
100.
by dfrage 7y ago
Maybe be more alliterative and title it Tomasulo's Algorithm Considered Tempting ? Because as far as I have found without reading original documents, its development and use in the IBM System 360/Models 91 and 95 was only but fu
101.
by dfrage 7y ago
Foreshadow/L1TF is the only prior problem of this nature that is unique to Intel. Meltdown bugs were also found in ARM and IBM POWER and mainframe designs, and Specture hits all of those and AMD as well.
102.
by dfrage 7y ago
Dan Luu didn't note that Meltdown goes all the way back to their first out-of-order speculative execution design, the Pentium Pro in 1995. I note that ARM, and both of IBM's architectures, POWER and mainframe, also had Meltdown i
103.
by dfrage 7y ago
https://en.wikipedia.org/wiki/Time-sharing Time sharing was very big in the 1970s, and non-OS/VM methods of sharing mainframes for batch processing were also big at times I'm less sure of. Inviting complete r
104.
by dfrage 7y ago
And ARM had one design that had a Meltdown variant, and both of IBMs', POWER and mainframe as well. Every vendor with speculative out-of-order designs is vulnerable to Spectre.
105.
by dfrage 7y ago
But they are, ARM to both a Meltdown variant and Spectre, as well IBM's POWER and mainframe chips, and AMD to Spectre.
106.
by dfrage 7y ago
> In the x86 space , Meltdown absolutely was down to one company Serious weasel wording, outside of x86 space every other high end architecture also had Meltdown issues, ARM, and IBM's POWER and mainframe designs.
107.
by dfrage 7y ago
You joke, but with the recent update they do have similar design aesthetics. If you're already a happy Walmart physical store customer that's perfectly OK, "familiar" is a good thing, even if it's not as attractive
108.
by dfrage 7y ago
There's some forcing for sure, but they already had a lot of the hard parts in place when they started the process. I've witnessed since the fall of 2016 their sending me many packages from various locations to almost always sh
109.
by dfrage 7y ago
My goodness, they sell a bunch: https://www.walmart.com/search/?cat_id=0&facet=retailer%3AWa... (substitute amd for intel in that query if you prefer) including a $1,629 Ryzen Threadripper $70 cheaper than Newegg,
110.
by dfrage 7y ago
Possible evidence they could be thinking about this: a few minutes ago I filled out a survey of their's about my last Walmart.com purchase, and one of the questions asked was if I, or an immediate family member had a Sam's Club me
111.
by dfrage 7y ago
> you have to just look at the ~30% that is direct from Amazon. Except due to commingling you might get something from a 3rd party Fulfilled by Amazon instead of Amazon's supply chain. > And with first hand experience with Amazon
112.
by dfrage 7y ago
I'm also in flyover country and have found the same to be true, aside from selection. But the products they do directly offer (it's easy to remove 3rd parties from your searches) come from their own supply chain which they reall
113.
by dfrage 7y ago
Just make sure the whole combo can call your country's emergency number: https://news.ycombinator.com/item?id=19479636 The Reddit link describes the the details for scheduling a 911 test call in the US, and as the lin
114.
by dfrage 7y ago
If you can't do a full end-to-end backup and bare metal restore, you don't really have a backup. If this is indeed a "quirk" of Oracle Cloud, it's not fit for purpose.
115.
by dfrage 7y ago
Exactly. Print out the whole thing, doesn't matter how many characters if you're trying to recover from something this drastic, and follow the general backup rule of "If you have 1 copy, you have 0, if you have 2, you have 1
116.
by dfrage 7y ago
I see simplifications in the the first six paragraphs, for example ignoring its leading role in commercially available DRAM starting around the same time it launched the 4004, but that's not very relevant after they exited the market i
117.
by dfrage 7y ago
> How much would it possibly cost for Google to just keep the Works with Nest Apis on maintenance mode? The cost is basically infinite as Google is internally structured, maintenance on anything but a monster service is a career dead end
118.
by dfrage 7y ago
Unless the service is monstrous like search or GMail, working on maintaining existing product infrastructure is a career dead end in the company, the game is to be part of a project launch. And Google's back end stuff constantly chang
119.
by dfrage 7y ago
Just pumping the muscles in your legs will decrease the potential for blood clots forming in them, according to a recent HN topic.
120.
by dfrage 7y ago
Interesting; neon bulbs have the advantage of working on (US) line voltage without anything else needed, sticking an LED in there requires more stuff. Both could have been squashed in the US market due to Federal energy regulations. Or th

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