Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Hacker News 100 @hn100@social.lansky.name

1/25/2026, 5:10:10 PM

Public

I built a 2x faster lexer, then discovered I/O was the real bottleneck

Link: https://modulovalue.com/blog/syscall-overhead-tar-gz-io-performance/
Discussion: https://news.ycombinator.com/item?id=46693460

I built a 2x faster lexer, then discovered I/O was the real bottleneck

Archiving 104K files into tar.gz reduced I/O time by 43x and total processing time by 2.3x. The bottleneck was not disk speed, it was syscall overhead.

modulovalue.com · modulovalue

If you have a fediverse account, you can quote this note from your own instance. Search https://social.lansky.name/users/hn100/statuses/115956843214706869 on your instance and quote it. (Note that quoting is not supported in Mastodon.)