Persistent Protocol Conformance Cache for App Launch
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Solution Overview
Problem
Dynamic linking of statically compiled languages can result in slow protocol conformance checks during application launch, leading to poor user experience due to significant App launch time delays.
Innovation Solution
Implementing a method that stores the results of protocol conformance checks in a persistent cache using a non-volatile memory, where the cache is indexed using a combination of a protocol and a type as a key, allowing for fast retrieval of cached results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If protocol conformance checks are performed dynamically at runtime, then the application can adapt to different operating system versions, but the app launch time increases significantly
Solution Approach 1:
The patent performs protocol conformance checks in advance during the build process or initial application setup, rather than waiting until runtime. The results of these checks are stored in a cache that persists across application launches. This preliminary action eliminates the need to repeat conformance checks on every app launch, thereby reducing launch time while maintaining adaptability through the cached results
Solution Approach 2:
The patent creates a copy of the protocol conformance check results and stores them in a persistent cache. Instead of performing the actual conformance checks repeatedly at runtime, the system uses these pre-computed copies of the results. The cache contains copied information about type conformances to protocols, which can be quickly retrieved without re-executing the verification logic
2Measurement precision
If protocol conformance checks are performed on every app launch, then conformance accuracy is maintained, but user experience deteriorates due to launch delays
Solution Approach 1:
The system performs protocol conformance checks in advance during application setup or build time, storing the results in a persistent cache. This preliminary verification ensures conformance accuracy is established before the application goes into production use, eliminating the need to repeat checks on every launch while maintaining user experience
Solution Approach 2:
The patent implements a self-service mechanism where the application automatically performs protocol conformance checks during its initial setup or first launch, caches the results, and then uses these cached results for subsequent launches. The system serves itself by maintaining its own conformance information without requiring repeated external verification, thereby preserving accuracy while improving ease of operation
3Reliability
If a linear scan of all conformance descriptors is performed, then complete conformance verification is achieved, but the check speed decreases
Solution Approach 1:
The patent extracts only the essential conformance information from the complete set of conformance descriptors and stores it in a compact cache format. Instead of performing a linear scan of all descriptors at runtime, the system extracts the critical conformance results in advance and stores them in an optimized structure that enables fast retrieval without requiring complete re-verification
Solution Approach 2:
The patent changes the parameter representation by storing conformance results in a cached format with optimized data structures. The cache uses a different parameter organization than the original conformance descriptors, allowing for constant-time or logarithmic-time lookup instead of linear scanning. This parameter transformation maintains verification reliability while dramatically improving check speed
Data Source
AI summary
Techniques may include receiving a first request for a conformance check for a conformance pair, the conformance pair include a variable type and a particular protocol. The first request can identifying a first pointer. The technique can include determining a conformance check result is not cached for the conformance pair using the first pointer. In response to determining that the conformance check result is not cached for a variable, the electronic device may include performing the conformance check for the conformance pair and storing a result of the conformance check in an index table in persistent memory in association with at least a portion of bits in the first pointer. The technique can include referencing the index table on subsequent requests for a conformance check.