79 lines
2.3 KiB
Markdown
79 lines
2.3 KiB
Markdown
---
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title: "What-If Simulation"
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tags:
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- devops
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- architecture
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- decision-support
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- ai
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- cloud-migration
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created: 2026-04-25
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---
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# What-If Simulation
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## Definition
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What-If Simulation 是 Agentic AI 模拟架构变更（如云迁移、实例类型变更）对**性能、成本和合规**的影响，支持数据驱动的决策。
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## 应用场景
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| 场景 | 模拟内容 | 决策支持 |
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|------|---------|---------|
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| 云迁移 | AWS → GCP 迁移影响 | 性能/成本/合规权衡 |
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| 实例变更 | m5.xlarge → m5.large | 性能影响评估 |
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| 架构重构 | 单体 → 微服务 | 复杂度/收益分析 |
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| 多云策略 | 工作负载分配 | 成本优化建议 |
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## Agentic AI What-If Simulation 工作流
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```
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1. Define Scenario → "Moving from AWS EKS to GCP GKE"
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2. Gather Baseline → 当前性能/成本/合规指标
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3. Model Impact → AI 基于历史数据和预测模型
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4. Generate Report → 性能差异/成本差异/风险评估
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5. Recommend → 最优方案 + 实施路径
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```
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## 示例
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> An AI agent simulates moving an AWS-based SaaS application to GCP's Private Cloud in KSA (Saudi Arabia):
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>
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> **Performance Impact**:
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> - Latency: +45ms (KSA → GCP EU)
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> - Availability: 99.9% → 99.95% (enhanced SLA)
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>
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> **Cost Impact**:
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> - Compute: -20% (GCP preemptible pricing)
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> - Egress: +15% (cross-region data transfer)
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> - Net: -12% annual savings
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>
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> **Compliance Impact**:
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> - Data Sovereignty: ✅ KSA data residency satisfied
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> - SLA: ✅ GCP private cloud meets enterprise agreement
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>
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> **Recommendation**: Proceed with migration, implement CDN for latency optimization
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## 与 [[Multi-Cloud Strategy]] 的关系
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What-If Simulation 是 [[Multi-Cloud Strategy]] 决策支持的核心工具：
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```
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Multi-Cloud Strategy Process:
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├── Assess → 评估多云需求
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├── Plan → What-If Simulation ← # ← 本页
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├── Execute → 实施迁移
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└── Optimize → 持续成本/性能优化
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```
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## Related Concepts
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- [[Multi-Cloud Strategy]] — What-If Simulation 支持多云决策
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- [[Cloud Migration]] — 主要应用场景
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- [[Cost-Benefit Analysis]] — 类似分析方法
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- [[Decision Framework]] — 决策支持的通用框架
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## Related Sources
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- [[how-agentic-ai-can-help-for-cloud-devops]]
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- [[how-can-a-multi-cloud-strategy-transform-your-business-roi]]
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