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Betty White's shoulder bag is a time capsule of World War II

https://americanhistory.si.edu/explore/stories/betty-white-world-war-ii
57•thunderbong•6d ago•3 comments

Claude Memory

https://www.anthropic.com/news/memory
359•doppp•8h ago•193 comments

How memory maps (mmap) deliver faster file access in Go

https://info.varnish-software.com/blog/how-memory-maps-mmap-deliver-25x-faster-file-access-in-go
59•ingve•3h ago•37 comments

/dev/null is an ACID compliant database

https://jyu.dev/blog/why-dev-null-is-an-acid-compliant-database/
119•swills•3h ago•64 comments

React Flow, open source libraries for node-based UIs with React or Svelte

https://github.com/xyflow/xyflow
17•mountainview•1h ago•0 comments

Can “second life” EV batteries work as grid-scale energy storage?

https://www.volts.wtf/p/can-second-life-ev-batteries-work
99•davidw•6h ago•113 comments

When is it better to think without words?

https://www.henrikkarlsson.xyz/p/wordless-thought
50•Curiositry•3h ago•21 comments

Cheap DIY solar fence design

https://joeyh.name/blog/entry/cheap_DIY_solar_fence_design/
12•kamaraju•1w ago•4 comments

AI discovers a 5x faster MoE load balancing algorithm than human experts

https://adrs-ucb.notion.site/moe-load-balancing
30•melissapan•2h ago•7 comments

Apple loses UK App Store monopoly case, penalty might near $2B

https://9to5mac.com/2025/10/23/apple-loses-uk-app-store-monopoly-case-penalty-might-near-2-billion/
161•thelastgallon•3h ago•115 comments

Zram Performance Analysis

https://notes.xeome.dev/notes/Zram
52•enz•5h ago•13 comments

OpenAI acquires Sky.app

https://openai.com/index/openai-acquires-software-applications-incorporated
133•meetpateltech•8h ago•62 comments

Kaitai Struct: declarative binary format parsing language

https://kaitai.io/
75•djoldman•1w ago•23 comments

PyTorch Monarch

https://pytorch.org/blog/introducing-pytorch-monarch/
311•jarbus•14h ago•40 comments

Pyscripter – Open-source Python IDE written in Delphi

https://github.com/pyscripter/pyscripter
44•peter_d_sherman•3d ago•7 comments

Populism Fast and Slow

https://josephheath.substack.com/p/populism-fast-and-slow
9•colonCapitalDee•2h ago•0 comments

Armed police swarm student after AI mistakes bag of Doritos for a weapon

https://www.dexerto.com/entertainment/armed-police-swarm-student-after-ai-mistakes-bag-of-doritos...
453•antongribok•7h ago•281 comments

New updates and more access to Google Earth AI

https://blog.google/technology/research/new-updates-and-more-access-to-google-earth-ai/
124•diogenico•8h ago•38 comments

Summary of the Amazon DynamoDB Service Disruption in US-East-1 Region

https://aws.amazon.com/message/101925/
399•meetpateltech•23h ago•101 comments

I managed to grow countable yeast colonies

https://chillphysicsenjoyer.substack.com/p/i-managed-to-grow-countable-yeast
24•crescit_eundo•1w ago•6 comments

US probes Waymo robotaxis over school bus safety

https://www.yahoo.com/news/articles/us-investigates-waymo-robotaxis-over-102015308.html
61•gmays•12h ago•101 comments

Introduction to the concept of likelihood and its applications (2018)

https://journals.sagepub.com/doi/10.1177/2515245917744314
11•sebg•2h ago•1 comments

Trump pardons convicted Binance founder

https://www.wsj.com/finance/currencies/trump-pardons-convicted-binance-founder-7509bd63
703•cowboyscott•9h ago•688 comments

The OS/2 Display Driver Zoo

https://www.os2museum.com/wp/the-os-2-display-driver-zoo/
60•kencausey•1w ago•6 comments

Show HN: Git for LLMs – A context management interface

https://twigg.ai
57•jborland•10h ago•14 comments

Show HN: OpenSnowcat – A fork of Snowplow to keep open analytics alive

https://opensnowcat.io/
49•joaocorreia•5h ago•12 comments

Counter-Strike's player economy is in a multi-billion dollar freefall

https://www.polygon.com/counter-strike-cs-player-economy-multi-billion-dollar-freefall/
17•perihelions•49m ago•0 comments

Glasses-free 3D using webcam head tracking

https://assetstore.unity.com/packages/tools/camera/vr-without-glasses-for-webgl-332314
77•il_nets•5d ago•59 comments

I spent a year making an ASN.1 compiler in D

https://bradley.chatha.dev/blog/dlang-propaganda/asn1-compiler-in-d/
242•BradleyChatha•12h ago•149 comments

RFC 9861: KangarooTwelve and TurboSHAKE

https://datatracker.ietf.org/doc/rfc9861/
11•ecesena•1w ago•2 comments
Open in hackernews

Zram Performance Analysis

https://notes.xeome.dev/notes/Zram
52•enz•5h ago

Comments

kragen•2h ago
An alternative is zswap https://old.reddit.com/r/linux/comments/11dkhz7/zswap_vs_zra... which I believe, despite the name, can also compress RAM without hitting disk.
mscdex•2h ago
It's only an alternative if you have a backing swap device. zram does not have this requirement, so (aside from using no compression) it's basically the only solution for some scenarios (e.g. using entire disk(s) for ZFS).
kragen•1h ago
Can't you use a ramdisk as your backing swap device?
PhageGenerator•8m ago
Using a ramdisk for zswap is basically just zram with extra steps.
heavyset_go•2h ago
If you use hibernation, I think it also compresses your RAM image for potentially less wear and faster loading/saving
1oooqooq•51m ago
why hibernation would not compress to begin with? you're more likely just end up running zstd twice.
heavyset_go•13m ago
Swap isn't compressed by default, hibernation dumps memory to swap
sirfz•2h ago
a comment here about zram caught my eye a day or two ago and I've been meaning to look into it. Glad to see this post (and I'm sure many others saw the same comment and shared my obsession)
burch45•2h ago
This post’s conclusions are odd. It has a bunch of extensive benchmarks showing that zstd is by far the worst performing across every metric except a slight increase in compression ratio and then says the conclusion is zstd is the best choice. Unless I’m missing something in the data.
1oooqooq•52m ago
the context is missing.

but for vps, where the cpu usage is extremely low and ram is expensive, it might make sense to sacrifice a little performance for more db cache maybe. can't say without more context

buildbot•50m ago
I have had similar experience, with ZFS zstd dropped IOPs and throughput by 2-4x compared to lz4! On a 64 core Milan server chip…
Dylan16807•17m ago
In the first benchmark it gets a ratio of 4 instead of 2.7, fitting 36-40% more data with 75% more CPU. It looks great.

The next two show it fitting 20% more data with 2-3x the CPU, which is a tougher tradeoff but still useful in a lot of situations.

The rest of the post analyzes the CPU cost in more detail, so yeah it's worse in every subcategory of that. But the increase in compression ratio is quite valuable. The conclusion says it "provides the highest compression ratio while still maintaining acceptable speeds" and that's correct. If you care about compression ratio, strongly consider zstd.