shoney.arickathil
929b2802c4
prototypes/wo-rt-c — single-file C reference of the writeonce runtime layer, zero deps beyond libc + kernel uapi: thread-per-core io_uring event loops (raw syscalls, no liburing), SO_REUSEPORT listeners, one mlock'd mmap arena sharded by address, WAL dual-write with group commit (HTTP ack only after the fsync CQE), boot-time snapshot + WAL replay recovery, and a bench harness with a Go net/http comparison server. Measured on 20 cores: 908k reads/s p99 154us and 643k fsync-acked commits/s p99 177us on 8 shards, vs Go net/http 495k/355k (no durability) on 20 cores. Crash-under-load testing found and fixed an ack-before-fsync race and an fd-reuse ABA hazard in commit-ack parking. docs/plan/exploration/c-runtime — the phased plan (00, exit evidence per phase), the one-address architecture trace (01), and the single-binary end-goal contract (02). justfile carries the demo and bench recipes; .gitignore covers binaries and data dirs. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
44 lines
1.2 KiB
Text
44 lines
1.2 KiB
Text
# Cargo build artifacts
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/target
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/reference/crates/target
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# C++ prototype build output
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/prototypes/*/build
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# C runtime prototype (prototypes/wo-rt-c): compiled binary + WAL/snapshot data.
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# `just rt-c-demo` and the default WO_DATA write ./wo-data at the repo root.
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/prototypes/wo-rt-c/wo-rt
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/wo-data
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/prototypes/wo-rt-c/wo-data
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# Runtime data directories for the sample projects.
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# `wo.toml` points at `./data` which holds the per-project engine state.
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/data
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/docs/examples/*/data
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# Legacy blog content and data (v1 writeonce storage)
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/content
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# Symlinks to research source trees — user-specific absolute paths.
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# Each contributor sets their own via:
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# ln -s <path-to-linux-src> reference/linux
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# ln -s <path-to-go-src> reference/go
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# ln -s <path-to-postgresql-src> reference/postgresql
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/reference/linux
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/reference/go
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/reference/postgresql
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# Editor / OS noise — left broad on purpose so a contributor doesn't
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# accidentally commit their IDE scratch or macOS metadata.
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.DS_Store
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*.swp
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*.swo
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/.idea/
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/.vscode/*
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!/.vscode/settings.json.example
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!/.vscode/extensions.json
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/prototypes/wo-db
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# Phase-F bench binaries (sources are committed; builds are not)
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/prototypes/wo-rt-c/bench/bench
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/prototypes/wo-rt-c/bench/goref/goref
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