Optimize persistent connection registry for 8-10% performance gains

[AnotherRegularDude]

Overview

1. Certificate Hash Caching (8.3-8.7% improvement)

• Implements SHA256 hash caching with compare_by_identity for SSL certificates
• Avoids repeated expensive cryptographic operations

2. URL Origin Caching (9.9-10.6% improvement)

• Caches parsed URL origins to avoid repeated URI parsing
• Some speedup for applications making multiple requests to the same domains

3. Registry Structure Optimization

• Replaces nested hash structure registry[origin][ssl_bucket] with flat compound keys
• Simplifies lookups and reduces memory overhead

4. Cleanup Interval Optimization (8.16% improvement)

• Changes from immediate cleanup on every request to 60-second intervals
• Reduces overhead while maintaining reasonable memory usage
• Handle cases with time outed conns before triggered cleanup

5. Update minimum supported Ruby version to: 3.1: https://www.ruby-lang.org/en/downloads/branches

Benchmarks

Look at bin/benchmark executable file.

============================================================
COMPARISON WITH MASTER
============================================================

Ssl certificate requests:
  requests with same SSL cert:
    Master:  88.84 i/s
    Current: 96.21 i/s
    Change:  8.3% 🚀 FASTER
  requests with different SSL certs:
    Master:  44.06 i/s
    Current: 47.89 i/s
    Change:  8.69% 🚀 FASTER

Multiple url requests:
  requests to same origin:
    Master:  90.9 i/s
    Current: 99.89 i/s
    Change:  9.9% 🚀 FASTER
  requests to different origins:
    Master:  57.27 i/s
    Current: 63.35 i/s
    Change:  10.62% 🚀 FASTER

Cleanup performance:
  frequent requests:
    Master:  133.72 i/s
    Current: 144.63 i/s
    Change:  8.16% 🚀 FASTER

Memory Usage:
  Total allocated bytes:
    Master:  4966980
    Current: 4761220
    Change:  -205760 bytes (-4.14%) ✅ BETTER
  Total retained bytes:
    Master:  18638
    Current: 18638
    Change:  0 bytes (0.0%) ❌ WORSE

[coveralls]

Pull Request Test Coverage Report for Build 16252854548

Details

• 182 of 182 (100.0%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 15045884794:	0.0%
Covered Lines:	714
Relevant Lines:	714

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💛 - Coveralls

[tycooon]

А почему это называется truncate? Мб лучше как-то типа reset?

[tycooon]

А если у меня урлы каждый раз будут разные (типа гет запросы с рандомным гуидом в урле) – память в итоге закончится?