dad5f5a635
Replace `static mut OLD_SIGBUS_HANDLER` with AtomicU8 + AtomicPtr to remove data race UB when concurrent benchmarks call open() from multiple threads. Key changes: - Use `Once::call_once` to guarantee single handler installation - Publish old handler to atomics BEFORE installing new handler (closes the handler-active-but-state-unpublished race window) - Read atomics with Acquire in signal handler (async-signal-safe) - Align si_addr to page boundary before mmap(MAP_FIXED) - Add concurrent test: 8 threads open all 5 variants simultaneously
19 lines
367 B
TOML
19 lines
367 B
TOML
[package]
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name = "log-viewer-bench"
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version = "0.1.0"
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edition = "2024"
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[[bin]]
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name = "log-viewer-bench"
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path = "src/main.rs"
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[dependencies]
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memmap2 = "0.9"
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nix = { version = "0.30", features = ["signal", "resource", "mman", "fs"] }
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libc = "0.2"
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memchr = "2"
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serde_json = "1"
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clap = { version = "4", features = ["derive"] }
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crossbeam-channel = "0.5"
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tempfile = "3"
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