test(daemon): 100K session BGID leak stress (#2297)#4373
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Adds a long-running stress test that exercises 100,000 sequential mock daemon session lifecycles against fast_io::BgidAllocator. Each cycle acquires a buffer-group id and immediately returns it on drop, modelling a long-lived daemon that cycles through many short transfers. Asserts: - in-flight bgid count returns to zero after every cycle; - peak occupancy stays bounded under 1,024 (without recycling, peak would track allocation count and hit BgidExhausted at ~65K); - free-list reuse dominates fresh minting by >= 10x. Gated on cfg(all(target_os = "linux", feature = "io_uring")) and on OC_RSYNC_BGID_STRESS=1 so the default test budget stays fast.
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* test(daemon): 100K session BGID leak stress (#2297) Adds a long-running stress test that exercises 100,000 sequential mock daemon session lifecycles against fast_io::BgidAllocator. Each cycle acquires a buffer-group id and immediately returns it on drop, modelling a long-lived daemon that cycles through many short transfers. Asserts: - in-flight bgid count returns to zero after every cycle; - peak occupancy stays bounded under 1,024 (without recycling, peak would track allocation count and hit BgidExhausted at ~65K); - free-list reuse dominates fresh minting by >= 10x. Gated on cfg(all(target_os = "linux", feature = "io_uring")) and on OC_RSYNC_BGID_STRESS=1 so the default test budget stays fast. * chore: refresh Cargo.lock
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* test(daemon): 100K session BGID leak stress (#2297) Adds a long-running stress test that exercises 100,000 sequential mock daemon session lifecycles against fast_io::BgidAllocator. Each cycle acquires a buffer-group id and immediately returns it on drop, modelling a long-lived daemon that cycles through many short transfers. Asserts: - in-flight bgid count returns to zero after every cycle; - peak occupancy stays bounded under 1,024 (without recycling, peak would track allocation count and hit BgidExhausted at ~65K); - free-list reuse dominates fresh minting by >= 10x. Gated on cfg(all(target_os = "linux", feature = "io_uring")) and on OC_RSYNC_BGID_STRESS=1 so the default test budget stays fast. * chore: refresh Cargo.lock
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Summary
crates/daemon/tests/bgid_long_running_stress.rs: a 100,000-cycle stress test that exercisesfast_io::BgidAllocatorthrough mock daemon session lifecycles (acquire bgid, drop, repeat).cfg(all(target_os = "linux", feature = "io_uring"))plusOC_RSYNC_BGID_STRESS=1so the default test budget is untouched; skipped cleanly with a one-line message when the env var is unset.fast_ioin as a Linux-only dev-dependency ofdaemon.Closes #2297. Follows BGE-3 (#4355) and pairs with the upcoming BGE-4 (#4362) observability counters.
Test plan
cargo fmt --all -- --checkcargo clippy --workspace --all-targets --all-features --no-deps -- -D warningscargo nextest run -p daemon --test bgid_long_running_stress --all-features(skips without env var)OC_RSYNC_BGID_STRESS=1 cargo nextest run -p daemon --test bgid_long_running_stress --all-featureson a Linux host with io_uring (full 100K run)