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Test: 부하테스트 환경 구축 및 부하테스트 실행 #17

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Merged
merged 8 commits into from
Sep 13, 2025
Merged

Test: 부하테스트 환경 구축 및 부하테스트 실행 #17

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306cd51
test: 부하 테스트 환경 구축
ImGdevel Sep 10, 2025
55eb4a7
test: 부하테스트 모니터링
ImGdevel Sep 13, 2025
52116ef
Merge branch 'develop' into test/load-testing
ImGdevel Sep 13, 2025
6518bbc
remove: .gitkeep 제거
ImGdevel Sep 13, 2025
0fad943
fix: 부하테스트 기존 서버 포트 변경
ImGdevel Sep 13, 2025
dfc5472
fix: ConcurrentDictionary 쓰레드 안정성 확보
ImGdevel Sep 13, 2025
b2d75bf
feat: 기본 url제거 -> 반드시 환경변수 지정 강제
ImGdevel Sep 13, 2025
62710ed
feat: 재시도 로직 작성
ImGdevel Sep 13, 2025
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14 changes: 0 additions & 14 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -159,20 +159,6 @@ secrets.json
*.temp
~$*

# Media files
*.wav
*.mp3
*.mp4
*.avi
*.wmv
*.flv
*.mkv
*.webm
*.m4a
*.m4v
*.m4b
*.m4r
*.m4p

# Data files
*.csv
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9 changes: 9 additions & 0 deletions ProjectVG.Api/ApiServiceCollectionExtensions.cs
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Expand Up @@ -75,5 +75,14 @@ public static IServiceCollection AddDevelopmentCors(this IServiceCollection serv

return services;
}

/// <summary>
/// 부하테스트 전용 성능 모니터링 서비스
/// </summary>
public static IServiceCollection AddLoadTestPerformanceServices(this IServiceCollection services)
{
services.AddSingleton<PerformanceCounterService>();
return services;
}
Comment on lines +82 to +86
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@coderabbitai coderabbitai bot Sep 13, 2025

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💡 Verification agent

🧩 Analysis chain

CPU 사용률 계산 로직 오류 가능성(하위 서비스) — 잘못된 퍼센트 산출

현재 PerformanceCounterService.GetCpuUsage()가 누적 CPU 시간(TotalProcessorTime ms)을 “퍼센트”처럼 반환하고 있어 경고/모니터링이 왜곡됩니다. 샘플링 기반으로 벽시계 시간 대비 CPU 시간 Δ를 계산하도록 수정 필요.

예시(다른 파일에 적용 필요):

// PerformanceCounterService.cs 일부
private TimeSpan _prevCpu = TimeSpan.Zero;
private DateTime _prevTs = DateTime.UtcNow;

private double GetCpuUsage()
{
    try
    {
        var nowCpu = _currentProcess.TotalProcessorTime;
        var nowTs  = DateTime.UtcNow;

        var cpuDeltaMs = (nowCpu - _prevCpu).TotalMilliseconds;
        var wallMs     = (nowTs - _prevTs).TotalMilliseconds;

        _prevCpu = nowCpu;
        _prevTs  = nowTs;

        if (wallMs <= 0) return 0;

        // 논리 코어 수 고려
        var pct = (cpuDeltaMs / (wallMs * Environment.ProcessorCount)) * 100.0;
        return Math.Clamp(pct, 0, 100);
    }
    catch { return 0; }
}

🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "Searching repository for PerformanceCounterService / GetCpuUsage / TotalProcessorTime..."
rg -n --hidden --no-ignore-vcs -S '\bPerformanceCounterService\b' || true
rg -n --hidden --no-ignore-vcs -S '\bGetCpuUsage\b' || true
rg -n --hidden --no-ignore-vcs -S '\bTotalProcessorTime\b' || true

echo
echo "Showing matches with context (up to 5 files)..."
rg -n -C3 --hidden --no-ignore-vcs -S 'PerformanceCounterService|GetCpuUsage|TotalProcessorTime' | sed -n '1,500p' || true

Length of output: 9537

GetCpuUsage가 누적 CPU 시간(ms)을 반환 — 실제 퍼센트(%) 계산으로 수정 필요

위치: ProjectVG.Api/Services/PerformanceCounterService.cs (GetCpuUsage). 현재 GetCpuUsage()가 _currentProcess.TotalProcessorTime.TotalMilliseconds를 반환해 CpuUsagePercent에 누적 밀리초가 들어갑니다. 타이머(5s) 샘플링 기준으로 이전 TotalProcessorTime/타임스탬프와의 Δ를 이용해 벽시계 시간 대비 CPU 시간 비율을 계산하도록 변경하세요.

권장 수정 예시:

private TimeSpan _prevCpu = TimeSpan.Zero;
private DateTime _prevTs = DateTime.UtcNow;

private double GetCpuUsage()
{
    try
    {
        var nowCpu = _currentProcess.TotalProcessorTime;
        var nowTs  = DateTime.UtcNow;

        var cpuDeltaMs = (nowCpu - _prevCpu).TotalMilliseconds;
        var wallMs     = (nowTs  - _prevTs).TotalMilliseconds;

        _prevCpu = nowCpu;
        _prevTs  = nowTs;

        if (wallMs <= 0) return 0;

        var pct = (cpuDeltaMs / (wallMs * Environment.ProcessorCount)) * 100.0;
        return Math.Clamp(pct, 0, 100);
    }
    catch { return 0; }
}

}
}
55 changes: 55 additions & 0 deletions ProjectVG.Api/Configuration/LoadTestConfiguration.cs
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@@ -0,0 +1,55 @@
using Microsoft.AspNetCore.Server.Kestrel.Core;

namespace ProjectVG.Api.Configuration;

/// <summary>
/// 부하테스트 환경을 위한 성능 최적화 설정을 제공합니다.
/// </summary>
public static class LoadTestConfiguration
{
/// <summary>
/// 부하테스트 환경에서 Kestrel 서버의 성능을 최적화합니다.
/// </summary>
/// <param name="options">Kestrel 서버 옵션</param>
public static void ConfigureKestrelForLoadTest(KestrelServerOptions options)
{
// 연결 한도 설정 (부하테스트용 고성능)
options.Limits.MaxConcurrentConnections = 1000;
options.Limits.MaxConcurrentUpgradedConnections = 1000;

// 요청 크기 및 타임아웃 최적화
options.Limits.MaxRequestBodySize = 10_000_000; // 10MB
options.Limits.RequestHeadersTimeout = TimeSpan.FromSeconds(30);
options.Limits.KeepAliveTimeout = TimeSpan.FromMinutes(2);
options.Limits.RequestHeadersTimeout = TimeSpan.FromSeconds(10);

Comment on lines +21 to +25
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@coderabbitai coderabbitai bot Sep 13, 2025

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🛠️ Refactor suggestion

RequestHeadersTimeout 이중 설정 제거

동일 옵션을 30s → 10s로 두 번 설정하고 있습니다. 하나로 정리하세요.

-        options.Limits.RequestHeadersTimeout = TimeSpan.FromSeconds(30);
         options.Limits.KeepAliveTimeout = TimeSpan.FromMinutes(2);
         options.Limits.RequestHeadersTimeout = TimeSpan.FromSeconds(10);
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
options.Limits.MaxRequestBodySize = 10_000_000; // 10MB
options.Limits.RequestHeadersTimeout = TimeSpan.FromSeconds(30);
options.Limits.KeepAliveTimeout = TimeSpan.FromMinutes(2);
options.Limits.RequestHeadersTimeout = TimeSpan.FromSeconds(10);
options.Limits.MaxRequestBodySize = 10_000_000; // 10MB
options.Limits.KeepAliveTimeout = TimeSpan.FromMinutes(2);
options.Limits.RequestHeadersTimeout = TimeSpan.FromSeconds(10);
🤖 Prompt for AI Agents 
In ProjectVG.Api/Configuration/LoadTestConfiguration.cs around lines 21 to 25,
the RequestHeadersTimeout is set twice (first to 30s, then to 10s); remove the
duplicate by keeping a single options.Limits.RequestHeadersTimeout assignment
with the intended value (10 seconds) and delete the earlier 30-second line so
the configuration is unambiguous.

// HTTP/2 최적화
options.Limits.Http2.MaxStreamsPerConnection = 100;
options.Limits.Http2.HeaderTableSize = 4096;
options.Limits.Http2.MaxFrameSize = 16384;

// 성능 로깅
Console.WriteLine($"LoadTest Kestrel Configuration Applied:");
Console.WriteLine($"- MaxConcurrentConnections: {options.Limits.MaxConcurrentConnections}");
Console.WriteLine($"- MaxRequestBodySize: {options.Limits.MaxRequestBodySize} bytes");
}

/// <summary>
/// 부하테스트 환경에서 ThreadPool을 최적화합니다.
/// </summary>
public static void ConfigureThreadPoolForLoadTest()
{
// ThreadPool 최소 스레드 수 설정 (부하테스트용)
ThreadPool.SetMinThreads(100, 100);

// ThreadPool 상태 로깅
ThreadPool.GetMinThreads(out int minWorkerThreads, out int minCompletionPortThreads);
ThreadPool.GetMaxThreads(out int maxWorkerThreads, out int maxCompletionPortThreads);

Console.WriteLine($"ThreadPool Configuration:");
Console.WriteLine($"- Min Worker Threads: {minWorkerThreads}");
Console.WriteLine($"- Min Completion Port Threads: {minCompletionPortThreads}");
Console.WriteLine($"- Max Worker Threads: {maxWorkerThreads}");
Console.WriteLine($"- Max Completion Port Threads: {maxCompletionPortThreads}");
}
}
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