Notices by Tony Finch (fanf@mendeddrum.org), page 2

oh good grief i have discovered that a better compiler significantly changes the results on arm64

also bloody amd64 is running my baseline slower than my functions that do work

how am i supposed to measure these things i ask you

hmm no, `cpuid` is not a good replacement for `isb sy`

aha!

i think i have succeeded by passing arguments and return values via pointers and putting an MFENCE just before and just after the code under test

RIGHT

i added a baseline to my benchmark which revealed my amd64 numbers were nonsense, so i revamped it and now the benchmark results are more plausible

but the conclusion of the blog post is rather different!

newly rewritten article now up at the same url https://dotat.at/@/2025-06-08-floats.html

hmm, Safari has enormous problems with the new Lobsters CSS grid layout

the slowness is visible in how long it takes to reflow when the window is resized (on desktop)

also typing speed in the comment box is like 1 character per second

this page is particularly bad https://lobste.rs/s/ewinm7/on_bloat

it takes about 17 seconds to render on my iPad or 14s on my iPhone

@pushcx

who knows about webkit performance? @jensimmons ?

wow this page

https://lobste.rs/s/v7lsrv/two_years_rust

fails to render within a couple of minutes on my ipad

on my mac it takes 3 seconds to render or reflow and it takes 2 seconds for each character to appear in the comment box

https://graydon2.dreamwidth.org/313862.html - PERQ

https://adam.nels.onl//blog/maybe-everything-is-a-coroutine/ - Maybe everything is a coroutine.

https://github.com/esp32-open-mac/FoA - Ferris-on-Air: An experimental Wi-Fi stack for the ESP32 in Rust.

storm éowyn is taking the piss

https://arxiv.org/abs/2310.09423 - QUIC is not quick enough over fast internet.

@clacke in my version of english we say “on purpose” instead of “purposely”

(and “purposefully” is as you described it)

https://keymaterial.net/2024/06/15/reconstructing-public-keys-from-signatures/ - Reconstructing public keys from cryptographic signatures.

as far as i know there are no systems based on UTF-16 that disallow bare surrogates

UTF-16 doesn’t exist, it’s always WTF-16

nice to read that @beasts have migrated their support email to Request Tracker https://www.mythic-beasts.com/blog/2024/12/05/a-big-change-that-you-hopefully-wont-notice/

@jwz i was sad to learn that the pottery that made the original teapot had a major fire last year so they cannot make any more utah teapots :-( https://friesland-porzellan.de/produkte/information

https://github.com/elikaski/ECC_Attacks - Known attacks and a primer on elliptic curve cryptography.

https://www.memorysafety.org/blog/rustls-performance-outperforms/ - Rustls outperforms OpenSSL and BoringSSL.