feat: vol6 性能卷 ch00 性能思维 + ch01 Benchmark 方法论#88
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ch00-performance-mindset(2 篇 + index): - efficiency≠performance 命题(vector vs set 实测 5×)、两条铁律、Amdahl - sanitizer 作为性能测量的可信度地基 ch01-benchmark-methodology(6 篇 + index,全卷锚点章): - 为什么 microbenchmark 会骗你(三骗,foo() DCE 实测) - 可信写法(DoNotOptimize 语义、GBench 实跑、BENCHMARK_ENABLE_TESTING 坑) - 16 条测量陷阱 + perf-env-check.sh 体检脚本 - 统计(中位数 / Mann-Whitney)、生产 telemetry + CI 变点检测、方法论参考卡 代码:vector_vs_set、push_bench(GBench FetchContent)、perf-env-check.sh 顶层 vol6 index 重写(去「待重写」+ ch00 / ch01 导航) README 翻译覆盖率随之更新(vol6 CN 17 篇,EN 待补)
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ch00-performance-mindset(2 篇 + index):
ch01-benchmark-methodology(6 篇 + index,全卷锚点章):
代码:vector_vs_set、push_bench(GBench FetchContent)、perf-env-check.sh 顶层 vol6 index 重写(去「待重写」+ ch00 / ch01 导航)，README 翻译覆盖率随之更新(vol6 CN 17 篇,EN 待补)