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Locuza
Personal blog · locuza.substack.comhardwarescience
Locuza is a personal blog at locuza.substack.com about hardware and science. Since 2022, 6 different Hacker News readers have linked it 10 times, most often “Zen Evolution: A Small Overview”. The last post was in 2023, but the archive is still widely read.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
HN readers link Locuza for CPU microarchitecture analysis, including a Zen evolution overview built on annotated die shots. Comments cite it as evidence for points about AMD's op cache.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
A place focused around semiconductor information and die shot analysis.
Most-linked posts?
- Zen Evolution: A Small Overview4 people · 4 mentions · first linked 2022-09-26
- Die analysis: Samsung Exynos 2200 with RDNA2 graphics2 people · 2 mentions · first linked 2022-10-11
- Die walkthrough: Alder Lake-S/P and a touch of Zen 32 people · 2 mentions · first linked 2022-06-20
What Hacker News says?
> I'm a huge fan of aarch64, it's a very well designed ISA I totally agree. I would go as far as to say that it's the best "general purpose" ISA available today. I am under the impression that the design was heavily data driven, building on decades of industry experience in many different sectors and actually providing efficient instructions for the operations that are used the most in real code. > I only really def…
Comment linking /p/die-analysis-samsung-exynos-2200
on “Quake on an FPGA (MRISC32 CPU) [video]”Submitted Zen Evolution: A Small Overview as a story · 68 points
HN discussionYeah, that logic seems to all work out. I found annotated die shots of Zen 3 and Zen 4 that pretty much confirm the op cache: https://locuza.substack.com/p/zen-evolution-a-small-overview Pretty strong evidence that AMD are using a much simpler encoding scheme with roughly 64bits per uop. Also, That uop cache on Zen 4 is starting to look ridiculously large. But that does give us a good idea how big the microcode rom…
Comment linking /p/zen-evolution-a-small-overview
on “Quake on an FPGA (MRISC32 CPU) [video]”Submitted Zen Evolution: A Small Overview (2022) as a story · 9 points
HN discussionSubmitted Zen Evolution: A Small Overview as a story · 2 points
HN discussionSubmitted Die walkthrough: Alder Lake-S/P and a touch of Zen 3 as a story · 2 points
HN discussionSubmitted Radeon N31 vs. GeForce AD102/103, chip area analysis and rough cost estimates as a story · 1 points
HN discussionSubmitted Die analysis: Samsung Exynos 2200 with RDNA2 graphics as a story · 1 points
HN discussionSubmitted Nvidia's Ada lineup, configurations, estimated die sizes and a comparison as a story · 1 points
HN discussionSubmitted Die walkthrough: Alder Lake-S/P and a touch of Zen 3 as a story · 1 points
HN discussion