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Choosing a Cloud Provider: Tencent / Alibaba / Huawei / Baidu / AWS

A pragmatic side-by-side of the five clouds most Chinese teams actually choose — compute pricing, network, database, and when each wins.

BeginnerUpdated 2026-10-2939K views

The five clouds at a glance

For a Chinese-facing backend, the real shortlist is usually four domestic clouds plus AWS for overseas. They are far more similar than their sales decks suggest: the core building blocks (ECS, VPC, RDS, object storage, CDN) exist everywhere and are roughly interchangeable.

ProviderStrengthTypical pick
腾讯云 Tencent Cloud游戏/音视频生态、社交联动、轻量服务器性价比中小团队、微信生态、个人站长
阿里云 Alibaba Cloud产品线最全、电商/金融案例最多、文档生态成熟中大型企业、复杂架构、双 11 级稳定性
华为云 HUAWEI CLOUD政企合规、私有云混合云、硬件/芯片自研政府/国企、信创、混合云
百度云 Baidu CloudAI/大模型生态接口最顺、与搜索推送联动AI 应用、智能客服、语音图像
AWS全球节点最多、服务最深、新技术首发出海业务、跨国 SaaS
Vendor lock-in is real but usually overstated at the start: if you build on plain Linux + Docker + MySQL/Postgres/Redis, migrating ECS/VPC/RDS between clouds is a few days of work, not a rewrite.

Compute: shared-core vs dedicated-core, and the trap

Entry instances (共享型/突发性能型) share a physical core and are throttled by CPU credits. A build job or a traffic spike burns credits, then the VM crawls at 10-20% of its nominal speed. This is the single most common 'why is my server so slow' cause for small projects.

Series (Tencent/Alibaba example)CPU modelWorkload
轻量应用服务器 Lighthouse / 轻量云共享但有固定保底带宽个人站、测试环境
突发性能型 t6 / t5积分制，平时攒、忙时扣低平均负载+偶发高峰
共享标准型 s6 / SA2共享无积分限制对稳定性能要求不高的服务
计算型 c7 / c6 / SA5独享整核生产 API、数据库
内存型 r7 / r6独享+高内存配比缓存、JVM 大堆
For any user-facing production API buy dedicated-core (计算型/c6+) instances. The price delta per month is smaller than the cost of one throttled incident during a traffic spike.
# 线上 vs 测试环境典型配法（以 2C4G 为例）
测试环境：轻量应用服务器 2C4G 6M     ≈ 低配月付，够用
生产环境：计算型 c6 2C4G + 云数据库   ≈ 性能稳定，可 Seamless 升配

Network, database and object storage pricing feel

The bill that surprises people is not compute, it's bandwidth and storage: a backup routine writing 200GB to object storage every night, or a CDN with traffic-based billing during a viral post.

Line itemCheap ifSilently expensive
公网带宽按固定带宽包（固定带宽 / 95 计费）按流量计费却遇上突发流量
对象存储低频/归档存储放冷数据高频读+跨区域复制
云数据库主从两台足矣时别上三节点企业版随实例小时计费且忘关测试实例
快照/备份标准快照保留 7 天几十个实例全量长期保留
CDN流量包+合理缓存命中率动态接口也走 CDN 不缓存
  • Rule 1: keep egress low — put your app and DB in the same region/VPC
  • Rule 2: set budget alarms at 50% / 80% / 100% of expected monthly burn
  • Rule 3: use reserved/年付 for anything running 24/7 for more than a year

A decision checklist

  1. Users in China only → any domestic cloud + ICP filing; pick by price of the region nearest your users
  2. WeChat/mini-program ecosystem integration → Tencent Cloud has the smoothest credential flow
  3. Government/SOE or 信创 requirement → Huawei Cloud is often the mandated option
  4. Heavy AI/LLM inference at the app layer → Baidu Cloud's model APIs and the surrounding toolchain are the least friction
  5. Serving global users → AWS (or Tencent/AWS multi-region: domestic cloud at home, AWS abroad)
Whatever you pick, keep the architecture cloud-neutral: DNS domain, Docker image, standard databases, infrastructure-as-code. You should be able to recreate the whole stack on another cloud from a repo.

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