Hybrid Caching in .NET - Jody Donetti - NDC Copenhagen 2025

Value of the Information & Strength of the Argument

The talk provides valuable insights into caching strategies, particularly the benefits of hybrid caching. The speaker’s argumentation is solid, backed by his extensive experience and the success of FusionCache. He clearly explains the trade-offs between different cache types and demonstrates how hybrid caches address common problems like cache stampede. The presentation is practical, with code examples that can be directly applied. However, there is a potential bias as the speaker promotes his own library, though he also covers Microsoft’s HybridCache, providing a balanced view. The argumentation is persuasive and well-structured.

Scientific Rigor, Source Quality, Title Accuracy

The talk demonstrates scientific rigor by referencing well-known caching concepts and libraries. The speaker mentions that FusionCache is used by Microsoft’s Data API Builder, which adds credibility. However, he does not provide external sources or citations beyond his own project. The title accurately reflects the content, and the talk is well-organized. The speaker’s expertise is evident, and the information is reliable, though the lack of external references limits the ability to verify claims independently.

The title accurately reflects the content, which focuses on hybrid caching in .NET, covering both FusionCache and Microsoft's HybridCache.

8/10

The speaker is the creator of FusionCache and a principal engineer with 30 years of experience. The talk is based on practical experience and covers well-known caching concepts. However, it is largely a presentation of his own library, which introduces potential bias. The technical information is accurate and aligns with common knowledge in the field.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 02:00Introduction to the talk and speaker's background.
• 05:00Explanation of memory caches and their characteristics.
• 10:00Discussion on distributed caches and their trade-offs.
• 15:00Introduction to hybrid caches and their advantages.
• 20:00Comparison between hybrid and multi-level caches.
• 25:00Overview of FusionCache features and usage.
• 30:00Explanation of cache stampede and protection mechanisms.
• 35:00Demonstration of FusionCache code examples.
• 40:00Discussion on backplane support and multi-node scenarios.
• 45:00Conclusion and final thoughts on hybrid caching.

• NDC Conferences — Conference organizer, where the talk was given.
• NDC Copenhagen — Specific conference event page.

• FusionCache GitHub — Official repository for FusionCache, confirming its features and usage.
• Microsoft HybridCache documentation — Official documentation for Microsoft's HybridCache, providing details on its implementation.