How did you implement caching in your backend systems?

I noticed you mentioned using Redis for caching hot data in your projects. Could you walk me through your caching strategy? How did you decide what to cache, and how did you handle cache invalidation?

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你是如何在后端系统中实现缓存的？

我注意到你提到在项目中使用 Redis 缓存热点数据。你能详细讲解一下你的缓存策略吗？你如何决定缓存什么内容，以及如何处理缓存失效问题？

What performance optimizations did you implement that had the biggest impact?

You mentioned a 40% response time improvement in your Matrix Layer Protocol project. What specific optimizations contributed most to this improvement? How did you measure and validate these performance gains?

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你实施的哪些性能优化产生了最大的影响？

你提到在 Matrix Layer Protocol 项目中使响应时间降低了 40%。哪些具体的优化对这一改进贡献最大？你如何测量和验证这些性能提升？