545: 3,062 Days Later - LINUX Unplugged

What this episode covers

Kent Overstreet, the creator of bcachefs, helps us understand where his new filesystem fits, what it's like to upstream a new filesystem, and how they've solved the RAID write hole.Special Guest: Kent Overstreet.Sponsored By:Tailscale: Tailscale is a programmable networking software that is private and secure by default - get it free on up to 100 devices!Kolide: Kolide is a device trust solution for companies with Okta, and they ensure that if a device isn’t trusted and secure, it can’t log into your cloud apps.Support LINUX UnpluggedLinks:💥 Gets Sats Quick and Easy with Strike 📻 LINUX Unplugged on Fountain.FM Boltz — Privacy First, Non-Custodial Bitcoin Exchange.bcachefs — bcachefs is an advanced new filesystem for Linux, with an emphasis on reliability and robustness and the complete set of features one would expect from a modern filesystem. bcachefs Erasure coding — Bcachefs takes advantage of the fact that it is already a copy-on-write filesystem. If we're designing our filesystem to avoid update-in-place, why would we do update-in-place in our RAID implementation?bcachefs Caching — bcachefs can be configured for writethrough, writeback, and writearound caching, as well as other more specialized setups. bachefs Compression — Unlike other filesystems that typically do compression at the block level, bcachefs does compression at the extent level - variable size chunks, up to (by default) 128k.bcachefs Encryption — bcachefs uses AEAD style encryption (ChaCha20/Poly1305), where each encrypted block is authenticated with a MAC, with a chain of trust up to root (the superblock), and every encrypted block has a unique nonce. bcachefs Snapshots — bcachefs provides Btrfs style writeable snapshots, at subvolume granularity. (2015) [ANNOUNCE] bcachefs - a general purpose COW filesystem — It's taken a long time to get to this point - longer than I would have guessed if you'd asked me back when we first started talking about it - but I'm pretty damn proud of where it's at now.Kent Overstreet's Patreon Unplugged Core Membership Jupiter Signal PROMO 2024 — $3 off a month forever. Webamp — Winamp 2 re-implemented for the browser. Webamp on GitHub — Winamp 2 reimplemented for the browse. The Official JB BBS! — vt52 hosts our new official JB BBS! `telnet http://pebkac.lol`

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Frequently Asked Questions

How long is this episode of LINUX Unplugged?

This episode is 57 minutes long.

When was this LINUX Unplugged episode published?

This episode was published on January 15, 2024.

What is this episode about?

Kent Overstreet, the creator of bcachefs, helps us understand where his new filesystem fits, what it's like to upstream a new filesystem, and how they've solved the RAID write hole. Special Guest: Kent Overstreet.

Can I download this LINUX Unplugged episode?

Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.