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aey commented on Olbers' Paradox   en.wikipedia.org/wiki/Olb... · Posted by u/bookofjoe
aey · 5 years ago
Would the sky also be filled with infinite black holes?
aey commented on Why is Apple's M1 chip so fast?   erik-engheim.medium.com/w... · Posted by u/socialdemocrat
periya · 5 years ago
Also being on TSMC5 on top of significant micro architecture improvements ; ~630 instruction deep ROB, ability to queue ~150 outstanding load instruction and ~100 outstanding stores and huge TLBs which reduces swapping the anandtech article does a great job going into explaining this.
aey · 5 years ago
All that helps, but if you look at the die you are going to see a massive 12MB L2 with a bunch of routing to all the L1s. That’s where the majority of the cost is going vs any other chip.
aey commented on Why is Apple's M1 chip so fast?   erik-engheim.medium.com/w... · Posted by u/socialdemocrat
kllrnohj · 5 years ago
If cache size was the answer then Intel would have already stuck more on their CPUs, and AMD's 32MB on Zen3 would be carrying far more weight against the M1 than it is.

Bigger caches mean higher latency caches, it's not strictly a matter of bigger is better.

aey · 5 years ago
It’s an L2, amd zen has 2x16mb L3s, with a wacky point of unification. L3 is muuuuch slower than L2.

Apple’s L2 is huge and is the PoU for all the cores. I wouldn’t be surprised if it has direct routing to all the L1s since they are so small. 5nm doesn’t hurt.

aey commented on Why is Apple's M1 chip so fast?   erik-engheim.medium.com/w... · Posted by u/socialdemocrat
aey · 5 years ago
Because of the 12MB L2 cache as the point of unification. 865 snapdragon has a 4mb L3. Same as my recent intel MacBook.

Apple can use at least as much more die as amd/qcom/intel’s profit margin.

aey commented on Greg LeMond’s New 26 LB. Carbon Fiber Ebike   Lemond.com/prolog... · Posted by u/gjlemond
drcode · 5 years ago
It would seem foolhardy to lug a crazy-expensive, fragile carbon fiber bike up a stairwell on a regular basis. It would be easy to damage it that way.
aey · 5 years ago
A lot easier to lug my 16lb road carbon bike up and down stairs then a 30lb commuter
aey commented on Apple, Google and a Deal That Controls the Internet   nytimes.com/2020/10/25/te... · Posted by u/justinzollars
lehi · 5 years ago
> Who says apple hasn't built a viable alternative already?

App Store search says.

aey · 5 years ago
Google android app search is just as bad. That’s because “store search” is a totally different problem than indexing the web.

Even indexing the web is a different problem now than in 2000, users expect the search results that are SEO optimized for google.

aey commented on Huang’s Law Is the New Moore’s Law, and Explains Why Nvidia Wants Arm   wsj.com/articles/huangs-l... · Posted by u/bookofjoe
aey · 5 years ago
Nvidia buys ARM, Apple builds its own GPU, and the dance goes on.
aey commented on What Satoshi Did Not Know (2015) [pdf]   ifca.ai/pub/fc15/89750001... · Posted by u/MrXOR
aey · 5 years ago
These articles on HN always remind me how much more work crypto has to do in terms of education to the general technical public. Crypto Twitter is a recursive bubble.
aey commented on Supporting Linux kernel development in Rust   lwn.net/SubscriberLink/82... · Posted by u/dochtman
aey · 5 years ago
We built a whole BPF tool chain for rust :), although not for kernel development.

https://github.com/solana-labs/rust

If this kind of seems interesting please send us a CV.

aey commented on How Tim Cook Made Apple His Own   wsj.com/articles/tim-cook... · Posted by u/ksec
fredthomsen · 5 years ago
and let's not forget the touch bar.... Urgh. Still holding onto my 2015 MacBook from work and hoping it never dies.
aey · 5 years ago
2015 is the best MacBook! Touchbar is terrible, but I applaud them for trying. They are trying imagine a perfect touch interface.

u/aey

KarmaCake day340November 10, 2015
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