docs: update real-world findings — grpc-go, sql.DB benchmarks, abandoned CLs - #49
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docs: update real-world findings — grpc-go, sql.DB benchmarks, abandoned CLs#49gidotencate wants to merge 1 commit into
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…ndoned CLs - Add grpc-go clientStream to summary table (288B→256B, PR #9281 pending) - Add grpc-go section with full sizeclass context - Add sql.DB benchmark numbers (7–25× under 1–4 concurrent stressors, CL 767580) - Mark net/http.Transport (CL 767600) abandoned: end-to-end benchmarks showed ~28 µs round-trip dominates mutex cost; no measurable production impact - Mark net/http.response (CL 767581) abandoned: Go team policy (code clarity > byte savings), confirmed sizeclass savings, but only 1–5% in synthetic benchmarks - Add "When findings are actionable" note: I/O-dominated paths (HTTP, DB wire protocol) dwarf cache-line benefits; findings matter most on in-memory pools and CPU-bound hot paths
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Summary
clientStreamto summary table (288B→256B sizeclass reduction, PR #9281 pending)database/sql.DBbenchmark numbers: 7–25× improvement under 1–4 concurrent stressors (CL 767580 pending)net/http.Transport(CL 767600) as abandoned: end-to-end RoundTrip benchmarks showed ~28 µs network round-trip completely dominates mutex acquisition cost; no measurable production impactnet/http.response(CL 767581) as abandoned: Go team policy (code clarity over byte savings); sizeclass savings were confirmed (232B→216B, different allocator classes) but synthetic benchmarks only showed 1–5%Test plan