{"capability":{"Key":"asynchronous-io-aio","SourceKind":"yaml","SourceDatabase":"center","SourceTable":"featurematrix.yaml","SourceKey":"Asynchronous I/O (AIO)","SourceHash":"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd","Name":"Asynchronous I/O (AIO)","NameLocale":"en","GroupKey":"performance","GroupName":"Performance","GroupLocale":"en","Ordinal":2,"GroupOrder":5,"Facts":{"feature":{"description":"New I/O subsystem PostgreSQL issue multiple I/O requests concurrently instead of waiting for each to finish in sequence. This expands existing readahead and improves overall throughput. AIO supported in PostgreSQL 18 include sequential scans, bitmap heap scans, and vacuum. 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This expands existing readahead and improves overall throughput. AIO supported in PostgreSQL 18 include sequential scans, bitmap heap scans, and vacuum. For more information see \u003ca href=\"https://www.postgresql.org/docs/18/runtime-config-resource.html#GUC-IO-METHOD\" rel=\"nofollow\"\u003e\u003ccode\u003eio_method\u003c/code\u003e\u003c/a\u003e.\u003c/p\u003e\n","SourceHash":"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd","ContentHash":"a3c0f14e2e456681929656023bc01dcc82cd13409e0c9dfe111d6db88abd2846","Payload":{"description":"New I/O subsystem PostgreSQL issue multiple I/O requests concurrently instead of waiting for each to finish in sequence. This expands existing readahead and improves overall throughput. AIO supported in PostgreSQL 18 include sequential scans, bitmap heap scans, and vacuum. For more information see [`io_method`](https://www.postgresql.org/docs/18/runtime-config-resource.html#GUC-IO-METHOD).","name":"Asynchronous I/O (AIO)","versions":{"18":"Yes"}}},{"Locale":"zh-Hans","Title":"异步 I/O (AIO)","BodyHTML":"\u003cp\u003e新的 I/O 子系统允许 PostgreSQL 并发发出多个 I/O 请求，而不必顺序等待每个请求完成，从而扩展预读并提升 I/O 吞吐。\u003c/p\u003e\n","SourceHash":"071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50","ContentHash":"47f367f2435c8d595fd2766e42f8e0e82789f3f383222515caa0ca96e66c016a","Payload":{"description":"新的 I/O 子系统允许 PostgreSQL 并发发出多个 I/O 请求，而不必顺序等待每个请求完成，从而扩展预读并提升 I/O 吞吐。","name":"异步 I/O (AIO)"}}],"GroupTitles":{"en":"Performance","zh-Hans":"性能"}},"observed":true,"selected_cell":{"Version":"18","State":"yes","EvidenceKind":"yaml-transition","TransitionVersion":"18","Supported":true,"Original":"Yes"},"selected_version":"18"}