Hacker News: pixelbeat__

Updating yes(1) to run at 175GiB/s

pixelbeat__ — Tue, 10 Mar 2026 23:44:38 +0000

Article URL: https://github.com/coreutils/coreutils/commit/2b1c059e6

Comments URL: https://news.ycombinator.com/item?id=47330203

Points: 6

# Comments: 0

New comment by pixelbeat__ in "Four Column ASCII (2017)"

pixelbeat__ — Tue, 17 Feb 2026 08:23:07 +0000

Some of this elegance discussed from a programmatic point of view

https://www.pixelbeat.org/docs/utf8_programming.html

New comment by pixelbeat__ in "Meta is using the Linux scheduler designed for Valve's Steam Deck on its servers"

pixelbeat__ — Tue, 23 Dec 2025 19:42:35 +0000

LOL (I used to work for Meta, so appreciate the facetious understatement)

New comment by pixelbeat__ in "Uv is the best thing to happen to the Python ecosystem in a decade"

pixelbeat__ — Thu, 30 Oct 2025 10:48:58 +0000

It seems dotslash would complement uv well

https://dotslash-cli.com/docs/

DotSlash to get the interpreter for your platform, and uv to get the dependencies.

Perfect for corporate setups with custom mirrors etc.

New comment by pixelbeat__ in "The Linux Boot Process: From Power Button to Kernel"

pixelbeat__ — Sat, 25 Oct 2025 23:22:53 +0000

GRUB is mentioned but not detailed.

Here are some details: https://www.pixelbeat.org/docs/disk/

New comment by pixelbeat__ in "Date bug in Rust-based coreutils affects Ubuntu 25.10 automatic updates"

pixelbeat__ — Thu, 23 Oct 2025 22:29:07 +0000

https://github.com/coreutils/coreutils/commit/14d24f7a5

That bring GNU date(1) line coverage from 79.8% to 87.1%

New comment by pixelbeat__ in "Blockdiff: We built our own file format for VM disk snapshots"

pixelbeat__ — Wed, 01 Oct 2025 07:05:30 +0000

I see you use flags to determine if a file needs syncing. When we used fiemap within GNU cp we required FIEMAP_FLAG_SYNC to get robust operation.

(We have since removed the fiemap code from cp, and replaced it with LSEEK_DATA, LSEEK_HOLE)

New comment by pixelbeat__ in "The allure of new languages vs. the necessity of problem-solving"

pixelbeat__ — Tue, 23 Sep 2025 09:31:51 +0000

The benchmark is against unibyte text. You would get more accurate results by doing `export LC_ALL=C` in your benchmark script

New comment by pixelbeat__ in "Wttr: Console-oriented weather forecast service"

pixelbeat__ — Thu, 17 Jul 2025 12:07:24 +0000

Note the terminal -> HTML conversion used to serve wttr.in is based on https://github.com/pixelb/scripts/blob/master/scripts/ansi2h...

New comment by pixelbeat__ in "Dasel: Select, put and delete data from JSON, TOML, YAML, XML and CSV"

pixelbeat__ — Sun, 18 Aug 2024 20:58:21 +0000

A similar tool for ini files https://www.pixelbeat.org/programs/crudini/

New comment by pixelbeat__ in "The Elegance of the ASCII Table"

pixelbeat__ — Tue, 23 Jul 2024 18:38:19 +0000

I wrote about ASCII and UTF-8 elegance at:

https://www.pixelbeat.org/docs/utf8_programming.html

New comment by pixelbeat__ in "XZ backdoor: "It's RCE, not auth bypass, and gated/unreplayable.""

pixelbeat__ — Sat, 30 Mar 2024 23:11:44 +0000

rxzec

New comment by pixelbeat__ in "GNU Coreutils 9.5 Can Yield 10~20% Throughput Boost For cp, mv and cat Commands"

pixelbeat__ — Thu, 28 Mar 2024 19:57:16 +0000

The commit with more details on that perf change is: https://github.com/coreutils/coreutils/commit/fcfba90d0d27a1...

A summary of other changes just released in GNU coreutils 9.5 are:

- mv accepts --exchange to swap files

- env accepts --argv0 to override command name

- od supports half precision floating point formats

- timeout fixes various races

- chmod -R avoids symlink replacement attack

For all the release details see: https://lists.gnu.org/archive/html/coreutils-announce/2024-0...

New comment by pixelbeat__ in "Adventures of Linux Userspace at Meta [video]"

pixelbeat__ — Sat, 06 Jan 2024 23:26:59 +0000

(Hi Giuseppe!)

Right, the standard centos system binaries are used to provision services and manage hardware.

The internal services linking against the runtime libs you mention, are actually linking against about 2000 built from source packages, and are essentially a separate distro (with a distro in this sense being an ABI compatible set of libs running on a kernel)

New comment by pixelbeat__ in "Adventures of Linux Userspace at Meta [video]"

pixelbeat__ — Sat, 06 Jan 2024 23:09:45 +0000

Use ldd on any service binary to see that it's linked against a separate distro. (It's best to use the ldd from the corresponding platform).

There are actually three distros on each host. Current runtime platform, previous runtime platform, centos platform.

New comment by pixelbeat__ in "Adventures of Linux Userspace at Meta [video]"

pixelbeat__ — Sat, 06 Jan 2024 22:26:20 +0000

It's worth noting that this discusses the centos based provisioning and hardware management platform.

The actual distribution used to _run_ all Meta backend services is completely separate and built from source (it does share the (non centos) kernel). This is done for flexibility, performance, service isolation reasons

New comment by pixelbeat__ in "DaedalOS – Desktop environment in the browser"

pixelbeat__ — Mon, 01 Jan 2024 11:09:12 +0000

Reminds me of my website from 2006 (not entirely reproduced) at https://web.archive.org/web/20060208131821/http://www.pixelb...

New comment by pixelbeat__ in "A peculiarity of the GNU Coreutils version of 'test' and '['"

pixelbeat__ — Mon, 04 Dec 2023 20:16:31 +0000

Definitely not

New comment by pixelbeat__ in "Relative shell script includes with realpath on FreeBSD"

pixelbeat__ — Mon, 04 Dec 2023 06:39:05 +0000

All the main platforms have realpath(1). It was added to GNU Linux over 10 years ago now, to aid portability, and be a more natural command to access this functionality than readlink(1)

New comment by pixelbeat__ in "A peculiarity of the GNU Coreutils version of 'test' and '['"

pixelbeat__ — Sun, 26 Nov 2023 09:00:32 +0000

Yes, macos takes its utils from FreeBSD.

An interesting factoid is that FreeBSD/macos sort(1) was using GNU code until recently, since this is quite tricky to implement. Eventually it was reimplemented for GPL avoidance reasons.

We do consider macos though, and ensure all tests pass on macos for each release