Merge pull request #477 from Bluemangoo/feature/vmstat-disk #1846

Job	Run time
cargo check (ubuntu-latest)	1m 19s
cargo test (macOS-latest)	37s
Code Coverage (windows-latest, windows)	4m 38s
cargo test (windows-latest)	2m 34s
cargo test (ubuntu-latest)	58s
Code Coverage (macos-latest, macos)	1m 54s
Code Coverage (ubuntu-latest, unix)	2m 9s
Test each util separately (macOS-latest)	42s
cargo check (windows-latest)	1m 45s
cargo check (macOS-latest)	25s
Test each util separately (ubuntu-latest)	1m 10s
Test each util separately (windows-latest)	3m 21s
	21m 32s

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