SHM: optimize metadata #10326

Job	Run time
markdown_lint	5s
Unit tests on ubuntu-latest	22m 33s
Lints and doc tests on ubuntu-latest	10m 49s
Typos Check	6s
Unit tests on windows-latest	33m 36s
Lints and doc tests on windows-latest	16m 43s
Lints and doc tests on macos-13	12m 53s
Unit tests on macos-13	14m 52s
Unit tests on macos-14	13m 51s
Lints and doc tests on macos-14	10m 50s
Memory leak checks	2m 27s
CI status checks	1s
	2h 18m 46s

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