Function run_benchmark

tests/profile/benchmark_json_parsers.cpp:36–110

}

void run_benchmark(const char* test_name, const fl::string& json_data, int iterations, bool& success) {
    printf("\n");
    printf("================================================================================\n");
    printf("%s\n", test_name);
    printf("================================================================================\n");
    printf("JSON size: %zu bytes (%.2f KB)\n", json_data.size(), json_data.size() / 1024.0);
    printf("Iterations: %d\n", iterations);
    printf("\n");

    // Benchmark Legacy parse()
    double parse1_time = benchmark_microseconds([&]() {
        json result = json::parse(json_data);
        if (result.is_null()) {
            success = false;
        }
        volatile bool valid = !result.is_null();
        (void)valid;
    }, iterations);

    // Benchmark Custom parse2()
    double parse2_time = benchmark_microseconds([&]() {
        json result = json::parse(json_data);
        if (result.is_null()) {
            success = false;
        }
        volatile bool valid = !result.is_null();
        (void)valid;
    }, iterations);

    // Results
    printf("Performance Results:\n");
    printf("  Legacy parse():  %.2f µs/parse\n", parse1_time);
    printf("  Custom parse2():      %.2f µs/parse\n", parse2_time);
    printf("\n");

    // Comparison
    printf("================================ COMPARISON =====================================\n");

    double speedup = parse1_time / parse2_time;
    double ratio = parse2_time / parse1_time;

    if (parse2_time < parse1_time) {
        printf("✓ parse2() is FASTER:   %.2fx speedup (%.1f%% of parse() time)\n",
               speedup, ratio * 100.0);
        printf("  Time saved: %.2f µs per parse (%.1f%% reduction)\n",
               parse1_time - parse2_time, (1.0 - ratio) * 100.0);
    } else {
        printf("✗ parse2() is SLOWER:   %.2fx slowdown (%.1f%% of parse() time)\n",
               1.0 / speedup, ratio * 100.0);
        printf("  Extra time: %.2f µs per parse (%.1f%% increase)\n",
               parse2_time - parse1_time, (ratio - 1.0) * 100.0);
    }

    // Throughput
    double throughput1_mbps = (json_data.size() / parse1_time) * 1.0;  // bytes/µs = MB/s
    double throughput2_mbps = (json_data.size() / parse2_time) * 1.0;

    printf("\n");