SHM: optimize metadata #10406

Job	Run time
markdown_lint	4s
Lints and doc tests on ubuntu-latest	10m 31s
Lints and doc tests on windows-latest	18m 10s
Unit tests on ubuntu-latest	23m 9s
Lints and doc tests on macos-13	23m 59s
Unit tests on windows-latest	34m 4s
Unit tests on macos-13	14m 58s
Lints and doc tests on macos-14	9m 22s
Unit tests on macos-14	15m 5s
Typos Check	5s
Memory leak checks	2m 38s
CI status checks	1s
	2h 32m 6s

Provide feedback