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| author | Tom Lane | 2022-04-06 22:57:57 +0000 |
|---|---|---|
| committer | Tom Lane | 2022-04-06 22:58:14 +0000 |
| commit | a82a5eee314df52f3183cedc0ecbcac7369243b1 (patch) | |
| tree | 66b56e90a4483c68930a083534fc1963859464a7 /src/include/postgres.h | |
| parent | 8ea7963fc741b6f403a544d56ad0ecf78e5237b1 (diff) | |
Use ISB as a spin-delay instruction on ARM64.
This seems beneficial on high-core-count machines, and not harmful
on lesser hardware. However, older ARM32 gear doesn't have this
instruction, so restrict the patch to ARM64.
Geoffrey Blake
Discussion: https://postgr.es/m/78338F29-9D7F-4DC8-BD71-E9674CE71425@amazon.com
Diffstat (limited to 'src/include/postgres.h')
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