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ainiriand
searching PlanetScale…
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9 ms
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91.
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by
ainiriand
1y ago
The market will regulate itself! There will appear a new water company that makes things right and obviously will get all the customers, do not worry!
92.
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by
ainiriand
1y ago
Cooling is should not be an issue, considering it goes to ~-80C at night, we only need a smart way of harnessing that difference.
93.
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ainiriand
1y ago
I think you've found a particularly weak memory cell, I would start thinking about replacing that module. The consistent memory_channel=1, csrow=0 pattern confirms it's the same physical location failing predictably.
94.
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ainiriand
1y ago
What makes you think that a 32 bit system has 32 transistors? For example, from the top of my head, the pentium pro had a 86 bit direction bus and a 64 bit data bus.
95.
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ainiriand
1y ago
I write like that as my wife is an SEO specialist and showed me the impact of those elements in SEO.
96.
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ainiriand
1y ago
It is also very cool the infinite scroll of all the stations as this is the circular line. Top class!
97.
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ainiriand
1y ago
Even the author acknowledges that when they say: It’s easy to fire up Chrony against a local GPS-backed time source and see it claim to be within X nanoseconds of GPS, but it’s tricky to figure out if Chrony is right or not.
98.
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by
ainiriand
1y ago
Chrony is an incredible piece of software, but I am afraid that in this case it is used incorrectly, unless more details are provided. Benchmarking across threadripper AMD, raspberrypi arm, and LeoNTP servers cannot be done lightly. I do no
99.
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by
ainiriand
1y ago
Correct me if I am wrong, but wouldn't that be true only for testing accross comparable hardware? Would that be true in scenarios like the one that the author describes, where he uses 3 different systems (threadriper cpu, raspberrypi,
100.
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ainiriand
1y ago
Catfish is disgusting to eat, at least the ones we have here in Spain, which are sometimes past 50kg.
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ainiriand
1y ago
If those times are produced on different architectures, then yes, the comparison can never be accurate enough since the underlying measurement mechanisms differ fundamentally. While the author goes to great lengths to demonstrate very small
102.
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ainiriand
1y ago
He uses Chrony, which uses system time, and compares those times across different machines. Unless proper setup is done the benchmark is faulty.
103.
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ainiriand
1y ago
In my opinion when you want such precision, you need to stablish strict constraints to the measurements, for example memory fences: https://www.kernel.org/doc/Documentation/memory-barriers.txt If you do not do thi
104.
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by
ainiriand
1y ago
Unfortunately I think the same as you. The provided details in the blog post are by no means any way of doing any sort of time benchmark or network i/o benchmark. For starters, he is comparing times from tsc enabled hardware (x86_i64),
105.
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ainiriand
1y ago
I see Amami, what is the error?
106.
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ainiriand
1y ago
Divan is what I used as reference for some parts of my work (mostly the CPU timestamp parts). My project is less complete, but it will also include other important benchmarks for HFT, like current network I/O or some real trading patte
107.
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by
ainiriand
1y ago
In my opinion a more accurate measure when you go down to the micro seconds level is TSC directly from the CPU. I've built a benchmark tool for that https://github.com/sh4ka/hft-benchmarks Also I think that CPU pi
108.
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ainiriand
1y ago
From the outside does not look wildly different from Tropical Island in Germany. Ps: do not go there, very rude staff.
109.
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ainiriand
1y ago
Hi Tsuyoshi, I really love the concept behind this system, and I would love to test it. Can I switch it to Spanish or English? Thanks!
110.
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by
ainiriand
1y ago
Go for 258 and be ready to get your mind blown.
111.
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Show HN: HFT Benchmark Library
(github.com)
1 points
by
ainiriand
1y ago
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0 comments
112.
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ainiriand
1y ago
Seems to be neither.
113.
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ainiriand
1y ago
You have to benchmark tsc against a fixed CPU speed, say 1000Mhz, then you have a reliable comparison.
114.
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ainiriand
1y ago
Now crypto currencies don't look that crazy.
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ainiriand
1y ago
Sorry, but why that can be a downside in 2018?
116.
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ainiriand
1y ago
Very interesting, I will try that too.
117.
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Ask HN: ADHD and focus during meetings: what works for you?
4 points
by
ainiriand
1y ago
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3 comments
118.
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by
ainiriand
1y ago
Standard ChatGPT 4o.
119.
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ainiriand
1y ago
The key points that helped me, besides correlating sections to the corresponding chapters in the book, are the proposal of certain exercises every week to cover the topics we've seen and the encouragement to write small articles around
120.
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by
ainiriand
1y ago
I've learnt Rust in 12 weeks with a study plan that ChatGPT designed for me, catering to my needs and encouraging me to take notes and write articles. This way of learning allowed me to publish https://rustaceo.es for Spani
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