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Unpacking Cloudflare Workers CPU Performance Benchmarks

https://blog.cloudflare.com/unpacking-cloudflare-workers-cpu-performance-benchmarks/
145•makepanic•7h ago

Comments

PranaFlux•7h ago
Grab the popcorn, the Vercel v Cloudflare drama unfolds
syrusakbary•6h ago
I really appreciated that the tone of the article is about what can be improved, rather than dunking on the competition.

That's what everything is about!

PS: It's awesome to see improvements on the OpenNext implementation, that other providers can also reuse

skeptrune•6h ago
I loved this! Good writeup and very mature response to lots of criticism they took online prior.
synunlimited•4h ago
Speaking of `JSON` functions that can have drastic performance differences, V8 blog[0] recently had a post about improving `JSON.stringify` performance when you don't pass a `replacer` function. Some of the most used functions with performance pitfalls that are easy to trip into.

0: https://v8.dev/blog/json-stringify

nisten•4h ago
nextjs being 4 times slower latency wise than plain react or even vanilla js is pretty funny
kentonv•4h ago
The benchmark cases are not comparable to each other. Each does totally different work. They are only meant to compare hosting providers.
kentonv•3h ago
Correction: The author of the SvelteKit benchmark says it is designed to do the same work as the Next.js one: https://x.com/bmdavis419/status/1978242304432325041

But the "vanilla" benchmark generates some 3x as much HTML and the react one generates half, so they aren't comparable.

auxiliarymoose•3h ago
Keep in mind that Theo said the Vanilla benchmark was running too fast so he made it "way way slower" so 4x is not representative of a direct comparison

https://youtube.com/clip/UgkxvcydgHKf-76rZasr0ykMZZol57apKp9...

zeroq•1h ago
nextjs is spring of the web, it optimizes productivity rather than app speed.

and whether you are more productive with it or not is completely up to you.

bradleyg_•4h ago
Well played Cloudflare.
orliesaurus•3h ago
cf has to hire people with obsession not benchwarmers that only activate when someone yells at them because of a twitter argument. there i said it.

vercel only exists because cf got lazy. huge fan of CF, and if cloudflare had the attention to details that vercel has, there would be no vercel. fullstop.

CFs docs, repos, video content but also code samples, sdks (lol all the mcp stuff) usually is subpar to vercel's.

its really annoying that nextjs has to be forked and/or patched to work on cloudflare.

weird-eye-issue•2h ago
CF isn't lazy at all. Their docs often aren't that great but it's because they seem to be prioritizing launching new products and features
nmfisher•1h ago
Overall I'm quite positive towards core Cloudflare products like Tunnels, Workers, R2, KV etc, but a lot of newer products are often either thoroughly broken (e.g. Cloudflare AI) or unusable due to insufficient documentation (e.g. Email Routing).

After being burned a few times, I think I'm going to ignore any new Cloudflare product for 12 months after stable release. If their products worked as advertised, I'd be willing to pay considerably more. I think their commitment to the free tier is hamstringing them a little bit.

orliesaurus•46m ago
I also got burned and yes I also feel this way about it, i.e. AutoRAG has huge issues too, not to mention the whole MCP/Agents suite of SDKs...
Havoc•3h ago
Good job on taking the L gracefully and doing something constructive about it
pyrolistical•2h ago
This is why we need competition and independent benchmarks.

This shames poor performing product/service into action.

hu3•2h ago
My take from this article is that SvelteKit is crazy fast and Next.js is a snail
zeroq•1h ago
This is great PR. Well done to whoever orchestrated that post.
kentonv•1h ago
Thanks! This was 100% produced and orchestrated by engineers on the Workers team (including me).
zeroq•1h ago
Well, that only speaks better of higher ups who (a) offered you a space to that and (b) didn't micro managed you into something, like vercels hate piece.

Again, well played, nice fix, nice writeup.

FSF announces Librephone project

https://www.fsf.org/news/librephone-project
422•g-b-r•4h ago•161 comments

Disk Prices

https://diskprices.com/?locale=us
49•bookofjoe•2h ago•16 comments

New England's last coal plant has stopped operating, according to its owners

https://www.nhpr.org/nh-news/2025-10-06/new-englands-last-coal-plant-has-stopped-operating-accord...
64•toomuchtodo•3h ago•32 comments

Beliefs that are true for regular software but false when applied to AI

https://boydkane.com/essays/boss
277•beyarkay•9h ago•217 comments

Why The Pentagon run the best schools and the safest nuclear program

https://www.governance.fyi/p/the-pentagons-best-schools-and-safest
29•guardianbob•2h ago•13 comments

How bad can a $2.97 ADC be?

https://excamera.substack.com/p/how-bad-can-a-297-adc-be
206•jamesbowman•11h ago•113 comments

Can We Know Whether a Profiler Is Accurate?

https://stefan-marr.de/2025/10/can-we-know-whether-a-profiler-is-accurate/
16•todsacerdoti•2h ago•2 comments

Interviewing Intel's Chief Architect of x86 Cores

https://chipsandcheese.com/p/interviewing-intels-chief-architect
24•ryandotsmith•5d ago•0 comments

How AI hears accents: An audible visualization of accent clusters

https://accent-explorer.boldvoice.com/
180•ilyausorov•12h ago•70 comments

Nvidia DGX Spark: great hardware, early days for the ecosystem

https://simonwillison.net/2025/Oct/14/nvidia-dgx-spark/
22•GavinAnderegg•3h ago•3 comments

Unpacking Cloudflare Workers CPU Performance Benchmarks

https://blog.cloudflare.com/unpacking-cloudflare-workers-cpu-performance-benchmarks/
145•makepanic•7h ago•20 comments

Hacking the Humane AI Pin

https://writings.agg.im/posts/hacking_ai_pin/
94•agg23•6d ago•21 comments

Surveillance data challenges what we thought we knew about location tracking

https://www.lighthousereports.com/investigation/surveillance-secrets/
336•_tk_•7h ago•79 comments

How to turn liquid glass into a solid interface

https://tidbits.com/2025/10/09/how-to-turn-liquid-glass-into-a-solid-interface/
93•tambourine_man•8h ago•72 comments

Printing Petscii Faster

https://retrogamecoders.com/printing-petscii-faster/
8•ibobev•4d ago•0 comments

Beating the L1 cache with value speculation (2021)

https://mazzo.li/posts/value-speculation.html
22•shoo•4d ago•7 comments

SmolBSD – build your own minimal BSD system

https://smolbsd.org
149•birdculture•10h ago•11 comments

GrapheneOS is ready to break free from Pixels

https://www.androidauthority.com/graphene-os-major-android-oem-partnership-3606853/
208•MaximilianEmel•5h ago•86 comments

What Americans die from vs. what the news reports on

https://ourworldindata.org/does-the-news-reflect-what-we-die-from
454•alphabetatango•9h ago•251 comments

A 12,000-year-old obelisk with a human face was found in Karahan Tepe

https://www.trthaber.com/foto-galeri/karahantepede-12-bin-yil-oncesine-ait-insan-yuzlu-dikili-tas...
271•fatihpense•1w ago•110 comments

Astronomers 'image' a mysterious dark object in the distant Universe

https://www.mpg.de/25518363/1007-asph-astronomers-image-a-mysterious-dark-object-in-the-distant-u...
205•b2ccb2•13h ago•107 comments

CSS for Styling a Markdown Post

https://webdev.bryanhogan.com/miscellaneous/styling-markdown/
20•bryanhogan•1w ago•5 comments

Ally Petitt: Youngest OSCP at 16yo. Over 11 CVEs by 18

https://ally-petitt.com/en/posts/2024-05-07_how-i-became-a-hacker-before-i-finished-high-school/
34•nullbyte808•4h ago•6 comments

ADS-B Exposed

https://adsb.exposed/
289•keepamovin•17h ago•73 comments

AI and Home-Cooked Software

https://mrkaran.dev/posts/ai-home-cooked-software/
42•todsacerdoti•1w ago•24 comments

Preparing for AI's economic impact: exploring policy responses

https://www.anthropic.com/research/economic-policy-responses
31•grantpitt•9h ago•29 comments

Show HN: Metorial (YC F25) – Vercel for MCP

https://github.com/metorial/metorial
47•tobihrbr•13h ago•18 comments

Zoo of array languages

https://ktye.github.io/
151•mpweiher•17h ago•46 comments

AppLovin nonconsensual installs

https://www.benedelman.org/applovin-nonconsensual-installs/
144•jhap•8h ago•49 comments

Beyond the SQLite single-writer limitation with concurrent writes

https://turso.tech/blog/beyond-the-single-writer-limitation-with-tursos-concurrent-writes
61•syrusakbary•1w ago•55 comments