⚡ Bolt: Optimize L7 event deserialization#164
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Replaces `binary.Read` with `unsafe.Pointer` cast for `l7Event` deserialization in the eBPF tracer loop. This avoids expensive reflection and memory allocation (8KB copy per event) in the hot path. Benchmarks show `unsafe` casting is ~0.8ns vs ~100µs for `binary.Read` for this struct size. Safety is ensured by verifying the buffer size before casting. The struct layout is verified to match the C eBPF struct.
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mayankpande88
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⚡ Bolt: Optimize L7 event deserialization
💡 What: Replaced
binary.Readwith directunsafe.Pointercasting forl7Eventparsing inebpftracer/tracer.go.🎯 Why:
binary.Readuses reflection and performs allocations, which is extremely slow (~100µs/op) for the large (8KB)l7Eventstruct in the hot event processing loop.📊 Impact: Reduces deserialization time from ~100µs to <1ns per event, significantly reducing CPU usage and GC pressure at high traffic volumes.
🔬 Measurement: Verified with benchmarks in
ebpftracer/benchmark_test.goand layout tests inebpftracer/layout_test.go.PR created automatically by Jules for task 2598740664796661183 started by @blue4209211