optimize file read in Config::verify

[onur-ozkan]

Config::verify refactored to improve the efficiency and memory usage of file hashing.

[rustbot]

r? @Mark-Simulacrum

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[Mark-Simulacrum]

@bors r+

[bors]

📌 Commit d16e89d has been approved by Mark-Simulacrum

It is now in the queue for this repository.

[bors]

⌛ Testing commit d16e89d with merge dda7d4c...

[bors]

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing dda7d4c to master...

[rust-timer]

Finished benchmarking commit (dda7d4c): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	2.8%	[1.8%, 4.7%]	5
Improvements ✅ (primary)	-0.8%	[-0.8%, -0.8%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.8%	[-0.8%, -0.8%]	1

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 624.729s -> 622.812s (-0.31%)
Artifact size: 305.51 MiB -> 305.53 MiB (0.01%)