Replace SipHash with identity hasher on all hot-path HashMaps keyed by
ActorAddress. Since addresses are crypto-random, the first 8 bytes serve
as an excellent hash directly. Microbenchmarks show 1.9-4.6x lookup
speedup depending on map size.
- Custom Hash impl for ActorAddress (8-byte write_u64 instead of 32)
- AddrHasher/AddrBuildHasher identity hasher in delivery.rs
- AddrMap<V>/AddrSet type aliases used in 7 HashMap sites
- Stop-requests is_empty() short-circuit in tick_all inner loop
- 3 new behavioral tests, component microbenchmarks
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add proptest-state-machine for stateful property testing of the runtime,
covering FIFO ordering, budget fairness, timer correctness, mailbox bounds,
and spawn tracking. Extend cargo-fuzz with stop, restart, and timer actions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Runtime dashboard now features a TUI option and an interface for LLM tool use. Removed some bloat from stats collecting and replaced with a hook function to dump runtime stats into.
Adds some basic benchmarking, stress tests. They still need to be properly examined to ensure they are testing the correct properties, but fit for "good enough". Implements the HybridChannel type, which features a channel buffer that can withstand overflows. It does so by providing a dequeue behind a mutex. Without overflow, will push messages into the lock free ArrayQueue implemented by crossbeam_queue; when that buffer fills, will use the locking portion provided by the Mutex<VecDequeue>.
In the future we can even further optimize this, perhaps with some linked list implementations of lock-free channels, but, like the benchmarks, this fits the "good enough" bar for now.
Did not like the requirement of a tokio runtime and async/await. Rewrote
to use lock free queues (`crossbeam_queue::ArrayQueue`) as the basic
primitive to enable a runtime consisting of many pseudo-processes that
can pass messages to each other.
Co-authored-by: Zachery Aaron Shores-Chmielewski <zachanon@gmail.com>
Reviewed-on: http://zachery.lol/code/code/zacheryasc/swactor/pulls/1
