perf improve

[qiweiii]

No description provided.

[github-actions]

The changes primarily focus on performance optimizations by replacing generic data processing functions with specialized, faster versions, and by caching expensive-to-create objects. However, some of these changes introduce safety risks by removing bounds checks. Additionally, there's a confusing caching implementation in the Rust code.

[github-actions]

Potential integer overflow in length check and unsafe decoders without length validation.

[github-actions]

1. Potential out-of-bounds crash introduced by switching to Data.subdata(...) without bounds checks. 2) New decodeUInt* helpers rely on debug-only asserts, risking undefined behavior in release builds. 3) Rust ring_context caches a single value ignoring the size parameter, potentially returning params for the wrong size. 4) Possible unit regression in maxLookupAnchorAge configuration.

[github-actions]

The changes are mostly performance improvements, replacing generic data access with more specific, faster methods, and adding caching. However, a new caching mechanism in ring_context introduces a risky assumption that could lead to future bugs.

[codecov]

Codecov Report

❌ Patch coverage is 94.07407% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.96%. Comparing base (c6507b6) to head (1841e71).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...es/PolkaVM/Instructions/Instructions+Helpers.swift	72.22%	5 Missing ⚠️
...VM/Sources/PolkaVM/Instructions/Instructions.swift	98.46%	1 Missing ⚠️
...olkaVM/Sources/PolkaVM/Memory/StandardMemory.swift	88.88%	1 Missing ⚠️
PolkaVM/Sources/PolkaVM/ProgramCode.swift	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #367      +/-   ##
==========================================
+ Coverage   81.93%   81.96%   +0.03%     
==========================================
  Files         381      381              
  Lines       33707    33758      +51     
==========================================
+ Hits        27618    27670      +52     
+ Misses       6089     6088       -1     

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[xlc]

https://github.com/open-web3-stack/boka/actions/runs/17850052202 I guess the benchmarks aren't exactly right? also for some quick tasks, we could run it for 10 or 100 times to make difference more noticeable.

[qiweiii]

https://github.com/open-web3-stack/boka/actions/runs/17850052202 I guess the benchmarks aren't exactly right? also for some quick tasks, we could run it for 10 or 100 times to make difference more noticeable.

which ones are not right?

I can see a few anomaly in erasure and shuffle and fallback, maybe those are too fast, and the result fuctuates, and they have too few samples. sarfole, storage and preiamge seems fine