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krypson Lightpanda migrate DOM implementation to Zig

No, you can't do the same thing in Rust, because Rust crates and the standard library generally use the global allocator and not any arena you want to use in your code.

krypson Synadia and TigerBeetle Pledge $512k to the Zig Software Foundation

Previously: https://news.ycombinator.com/item?id=45703926

krypson How secure is merely discarding (TRIMing) all of a SSD's blocks?

The paper does not make that claim. According to the paper the probability of recovering the correct value of a single bit is 96% for a pristine drive and 56% for a used drive, both better than a coin toss. Of course the probability gets worse if one tries to recover more bits (but still better than n coin tosses for n bits).

krypson Google Tag Manager, the new anti-adblock weapon (2020)

Can we have " (2020)" added to the title?

krypson How M1 Macs feel faster than Intel models: it’s about QoS

You are not doing a release build.

krypson How M1 Macs feel faster than Intel models: it’s about QoS

WSL2, correct.

krypson How M1 Macs feel faster than Intel models: it’s about QoS

Yep, see below. With WSL and an ext4 virtual disk it takes only 29 seconds. Still quite a bit more than the 22 seconds on the Macbook.

krypson How M1 Macs feel faster than Intel models: it’s about QoS

cargo install on WSL2 uses the non-mapped home directory, which is on an ext4 virtual disk. That is probably one reason why it is six seconds faster.

krypson How M1 Macs feel faster than Intel models: it’s about QoS

Nope, pure compile time on a Core i7-10750H with Windows and Rust 1.52.1, antivirus disabled. WSL did not make much of a difference though (29 seconds).

krypson How M1 Macs feel faster than Intel models: it’s about QoS

It does not just feel faster, in many cases it is faster.

E.g. compiling Rust code is so much faster that it is not even funny. cargo install -f ripgrep takes 22 seconds on a Mac Book Air with M1, same on a hexacore 2020 Dell XPS 17 with 64GB RAM takes 34 seconds.

krypson Show HN: High-speed UTF-8 validation in Rust

As far as I can see it does not use SIMD for UTF8 validation, only likely/unlikely instrinsics, see https://github.com/hsivonen/encoding_rs/blob/e98a2096ab09c92...

krypson Show HN: High-speed UTF-8 validation in Rust

Check the benchmarks section (https://github.com/rusticstuff/simdutf8#Benchmarks), second table. simdutf8 is up to 28 % faster on my Comet Lake CPU. However with pure ASCII clang does something magical with simdjson and it beats my implementation by a lot. GCC-compiled simdjson is slower all around except for a few outliers with short byte sequences.

The algorithm is the one from simdjson, the main difference is that it uses an extra step in the beginning to align reads to the SIMD block size.

krypson Show HN: A fast JSON library for Go

How is the performance compared with simdjson (https://github.com/simdjson/simdjson)?

krypson Go vs. Rust: Writing a CLI Tool

Tip: Rust BufReaders default to 8KiB buffers which are way too small for high-performance sequential NVME I/O.

krypson LXD – next generation system container manager release 4.3

User namespaces remapping is still not supported in Kubernetes, see https://github.com/kubernetes/enhancements/issues/127

krypson Android Studio 2.0 Released

Not sure about the speed compared to Genymotion. HAXM is still required but less buggy now.

krypson How we ended up with microservices

The guy is no longer working for soundcloud.

krypson Lockpickers 3-D Print TSA Master Luggage Keys from Leaked Photos

Make sure to fix the zippers in place. Otherwise it is very easy to still open the bag by just prying open the zippers and closing them again by moving the tied-together zippers.

https://www.youtube.com/watch?v=G5mvvZl6pLI

krypson String Interning – Trie vs. Hash Table Deathmatch

For critbit trees the entire string _up to_ the critical bit where the string differs from all others already in the datastructure needs to be scanned.

critbit trees degenerate badly if you store strings and their prefixes, e.g. storing a, aa, aaa, ...

krypson FBI: Companies should help us ‘prevent encryption above all else’

http://en.wikipedia.org/wiki/Steganography

krypson Introducing Google Cloud Storage Nearline

Except for the Glacier retrieval fees which can be insane if you choose to retrieve more than 0.17% of your stored data per day.

https://aws.amazon.com/glacier/faqs/#How_much_data_can_I_ret...

krypson Android app with full control over your Google account

The PoC exploit fails on Android 5.0.1 with latest Google Play Services.

krypson Free speech is last century. Today’s students want the ‘right to be comfortable’

So we won't have a public debate about war anymore because it might cause a PTSD-induced breakdown in veterans?

krypson ARMv7 vs. x86-64: Pathfinding benchmark of C++, D, Go, Nim, Ocaml, and more

Everyone cares about armv7 because it is the CPU architecture deployed in over 95% of the mobile devices.

krypson Bicycle helmets do almost nothing to prevent concussions

A differing opinion about MIPS helmets from the "helmet advocacy program of the Washington Area Bicyclist Association" (consumer-founded): http://www.helmets.org/mips.htm

krypson Google I/O 2014

Tuned how? By being slow as f..k? That actually makes it much worse for small batteries.

krypson The Dawn Of Cloud 2.0 And Why Google Started A Price War

Google's API console is lightyears behind the AWS console. Similarly for features, documentation,support forums and stability. Example re stability: The cloud storage browser fails to display stuff stored in it regularly with backend errors.

So the only way they can compete right now is on price.

krypson Google Introduces Portable Native Client

Theoretically PNaCL code should be executing much faster than emscripten-generated Javascript. Of course we should do real benchmarks, YMMV and so on.

krypson Google Introduces Portable Native Client

The second real test. Android Renderscript uses LLVM for portable bytecode already.