Just felt the earthquake in sf, got a short little ride on my couch 🎢

Finished the overhaul of kernel-development-flake ✨ inspired by virtme-ng which didn’t support NixOS. kdf is also a rust-based /init using virtiofs. You can now do fast live dev of kernel modules/in-tree, no more waiting for nix rebuilds github.com/jordanisaacs...

TIL rust's spawn implementation uses a unix socket for communication between child & parent (github.com/rust-lang/ru...). Only happens when it can't use posix spawn (e.g. using pre_exec callback). Hit this when running a kernel without unix sockets in qemu and got function not implemented 🫠

Entering my Postgres era 🐘

Today's Future Data Systems Seminar Speaker: Joyo Victor will present @singlestore.com's "Bottle Service" meta-data system that supports database branching, change-data-capture, and Apache Iceberg. Zoom talk open to public at 4:30pm ET. YouTube video available after: db.cs.cmu.edu/events/futur...

Been working on using github.com/backtrace-la... which does cross modifying code for negligible overhead flags. But when I tried to use it I got dreaded linker errors with the '__start' and '__stop' symbols for the custom sections that were supposed to be generated at link time missing...

This is really cool, TUM has a course on transaction systems theory (taught by Thomas Neumann), with open access slides in English. Stumbled upon it when one of the slides showed up in a search for commutative serializability theory. db.in.tum.de/teaching/ss2...

I wrote up on bounding retries of write-write conflicts in MVCC+2PL. There is surprisingly little publicly written on how databases can retry, so doing my part to fill that gap in :) snowytrees.dev/blog/boundin...

Experimental off-cpu profiling landed for otel ebpf profiler 👀. It also was a blocker for using its stack unwinding as a library. Hopefully that means user space stacktraces and profiling will come soon(ish) to inspektor gadget for interactive perf analysis on kubernetes. github.com/open-telemet...

Was searching around for open source uses of wound wait/wait die and surprisingly found it is used in the Linux kernel github.com/torvalds/lin...