Use NIOFileSystem

[adam-fowler]

I've set this as a draft for the moment as while NonBlockingFileIO has been deprecated, NIOFileSystem still has an under bar prefix which indicates it has an unstable API.

[github-actions]

✅ Pull request no significant performance differences ✅

Summary

New baseline 'pull_request' is WITHIN the 'main' baseline thresholds.

Full Benchmark Comparison

Comparing results between 'main' and 'pull_request'

Host '55f8eafc4bbf' with 4 'x86_64' processors with 15 GB memory, running:
#25-Ubuntu SMP Wed Jan 15 20:45:09 UTC 2025

Router

Router:Echo metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	869	869	869	869	869	869	869	1013
pull_request	869	869	869	869	869	869	869	1013
Δ	0	0	0	0	0	0	0	0
Improvement %	0	0	0	0	0	0	0	0

Router:GET metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	568	568	568	568	568	568	568	2746
pull_request	568	568	568	568	568	568	568	2717
Δ	0	0	0	0	0	0	0	-29
Improvement %	0	0	0	0	0	0	0	-29

Router:Middleware metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	474	474	474	474	474	474	474	2681
pull_request	474	474	474	474	474	474	474	2710
Δ	0	0	0	0	0	0	0	29
Improvement %	0	0	0	0	0	0	0	29

Router:PUT metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	1371	1371	1371	1371	1371	1371	1371	771
pull_request	1371	1371	1371	1371	1371	1371	1371	775
Δ	0	0	0	0	0	0	0	4
Improvement %	0	0	0	0	0	0	0	4

Router:Parameters metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	818	818	818	818	818	818	818	2295
pull_request	818	818	818	818	818	818	818	2318
Δ	0	0	0	0	0	0	0	23
Improvement %	0	0	0	0	0	0	0	23

RouterBuilder:Middleware metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	472	472	472	472	472	472	472	2745
pull_request	472	472	472	472	472	472	472	2769
Δ	0	0	0	0	0	0	0	24
Improvement %	0	0	0	0	0	0	0	24

TrieRouter:LongPaths metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	15	15	15	15	15	15	15	239
pull_request	15	15	15	15	15	15	15	250
Δ	0	0	0	0	0	0	0	11
Improvement %	0	0	0	0	0	0	0	11

TrieRouter:Parameters metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	27	27	27	27	27	27	27	182
pull_request	27	27	27	27	27	27	27	186
Δ	0	0	0	0	0	0	0	4
Improvement %	0	0	0	0	0	0	0	4

TrieRouter:Routing metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	23	23	23	23	23	23	23	227
pull_request	23	23	23	23	23	23	23	231
Δ	0	0	0	0	0	0	0	4
Improvement %	0	0	0	0	0	0	0	4

[codecov]

Codecov Report

Attention: Patch coverage is 83.87097% with 5 lines in your changes missing coverage. Please review.

Project coverage is 83.58%. Comparing base (de68f8a) to head (05ed006).

Files with missing lines	Patch %	Lines
Sources/Hummingbird/Files/FileIO.swift	79.16%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #655      +/-   ##
==========================================
- Coverage   83.69%   83.58%   -0.12%     
==========================================
  Files         117      117              
  Lines        7650     7625      -25     
==========================================
- Hits         6403     6373      -30     
- Misses       1247     1252       +5     

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