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A concrete explanation of how a cache works

https://parksb.github.io/en/article/29.html
9•parksb•3d ago

Comments

rramadass•17m ago
Meh...

Wikipedia has it better and more comprehensive - https://en.wikipedia.org/wiki/CPU_cache

For usage of caches from a OS, particularly in the context of multicores/multiprocessors see Curt Schimmel's classic Unix Systems for Modern Architectures: Symmetric Multiprocessing and Caching for Kernel Programmers.

Claude Opus 5

https://www.anthropic.com/news/claude-opus-5
1383•alvis•11h ago•753 comments

Postgres LISTEN/NOTIFY actually scales

https://www.dbos.dev/blog/postgres-listen-notify-scalability
237•KraftyOne•9h ago•43 comments

Taylor Farms Called White House to Try to Delay Cyclospora Recall

https://www.wsj.com/health/taylor-farms-cyclospora-recall-delay-call-41fef0bc
63•JumpCrisscross•1h ago•10 comments

Sperm Whales blow bubbles to achieve restful, vertical sleep

https://news.st-andrews.ac.uk/archive/sperm-whales-blow-bubbles-to-achieve-restful-vertical-sleep/
53•hhs•4h ago•3 comments

Re: Bye Bye Gravatar

https://unattributed.cc/re-bye-bye-gravatar
8•surprisetalk•2d ago•1 comments

India's first privately-developed rocket reaches orbit on debut launch

https://arstechnica.com/space/2026/07/indias-first-privately-developed-rocket-reaches-orbit-on-dr...
534•sohkamyung•5d ago•152 comments

My security camera shipped a GitHub admin token in its login page

https://hhh.hn/hanwha-github-token/
535•hhh•16h ago•184 comments

Opus 5 is currently #1 on Artificial Analysis Intelligence Leaderboard

https://artificialanalysis.ai/models
187•aarondong•8h ago•122 comments

Show HN: I simulated closing the Strait of Hormuz on real oil trade data

https://globaloilnetwork.staffinganalytics.io/
127•eliotho•1d ago•64 comments

If coding has been solved, why does software keep getting worse?

https://ptrchm.com/posts/nothing-works-and-everyone-is-euphoric/
614•pchm•19h ago•478 comments

Designing an Ethernet Switch ASIC

https://essenceia.github.io/projects/ethernet_switch_asic/
135•random__duck•4d ago•36 comments

An old patent inspired the new "Y-zipper", a three-sided fastener

https://news.mit.edu/2026/three-sided-y-zipper-design-0504
154•crescit_eundo•2d ago•32 comments

A concrete explanation of how a cache works

https://parksb.github.io/en/article/29.html
9•parksb•3d ago•1 comments

Nvidia, Microsoft, Meta warn against overregulating open-weight models

https://www.cnbc.com/2026/07/24/nvidia-microsoft-meta-open-weight-ai-models.html
551•louiereederson•14h ago•247 comments

Kimi K3 exploited the latest Redis server

https://twitter.com/fried_rice/status/2080059356322918777
168•Alifatisk•1d ago•47 comments

Firefox Containers Preview

https://blog.mozilla.org/en/firefox/firefox-containers-preview/
253•twapi•3d ago•89 comments

Don't Take the Black Pill [video]

https://www.youtube.com/watch?v=zLZwpH5lCD4
151•signa11•11h ago•117 comments

Half-Life 2 running natively on HaikuOS

https://discuss.haiku-os.org/t/haiku-nvidia-porting-nvidia-driver-for-turing-gpus/16520?page=18
284•m0do1•15h ago•53 comments

Fil-C: Garbage In, Memory Safety Out [video]

https://www.youtube.com/watch?v=5F-2Y1LPRek
116•Bootvis•1d ago•105 comments

IRGC claims it destroyed Amazon's Bahrain data center

https://houseofsaud.com/irgc-claims-destroyed-amazon-bahrain-data-center/
265•thisislife2•18h ago•336 comments

Marimo now runs in PyCharm

https://marimo.io/blog/pycharm
87•cantdutchthis•2d ago•18 comments

Future euro banknote design proposals

https://www.ecb.europa.eu/euro/banknotes/future_banknotes/html/all-design-proposals.en.html
143•robin_reala•18h ago•127 comments

The case for MUDs in modern times (2018)

https://www.andrewzigler.com/feed/the-case-for-muds-in-modern-times
89•bw86•16h ago•72 comments

Gsxui – Shadcn-style components for Go

https://ui.gsxhq.dev/
58•jackielii•10h ago•8 comments

The footprints of every building in NYC

https://www.beautifulpublicdata.com/the-footprints-of-every-building-in-nyc/
60•jonathanmkeegan•4d ago•6 comments

Government orders GitHub to remove Bluetooth-based chat app Bitchat: Jack Dorsey

https://www.thehindu.com/news/national/government-orders-github-to-remove-bluetooth-based-chat-ap...
406•rootkea•13h ago•296 comments

Be skeptical of OpenAI's rogue hacker agent story

https://www.theguardian.com/technology/2026/jul/24/openai-rogue-hacker
458•rwmj•11h ago•261 comments

Unitree As2-W

https://www.unitree.com/As2-W/
106•MehrdadKhnzd•11h ago•41 comments

Buz – A fork of Bun using modern Zig, with sub-1s incremental builds

https://ziggit.dev/t/buz-a-drop-in-replacement-for-bun-using-modern-zig-with-sub-1s-incremental-b...
237•kristoff_it•18h ago•164 comments

Programming language file extensions that match ISO 3166-1 alpha-2 country codes

https://www.bruh.ltd/blog/programming-language-file-extensions-that-match-an-iso-3166-1-alpha-2-c...
46•speckx•15h ago•21 comments