------------------------------ | Buffer state object | ------------------------------ | Place to hang the buffer | ------------------------------ | Consistent Get? | ------------------------------ | Proc Owning SO | ------------------------------ | Flags(RIR) | ------------------------------
来看一个 cache buffer handle SO: 70000046fdfe530, type: 24, owner: 70000041b018630, flag: INIT/-/-/0x00 (buffer) (CR) PR: 70000048e92d148 FLG: 0x500000 lock rls: 0, class bit: 0 kcbbfbp: [BH: 7000001c7f069b0, LINK: 70000046fdfe570] where: kdswh02: kdsgrp, why: 0 BH (7000001c7f069b0) file#: 12 rdba: 0x03061612 (12/398866) class: 1 ba: 7000001c70ee000 set: 75 blksize: 8192 bsi: 0 set-flg: 0 pwbcnt: 0 dbwrid: 2 obj: 66209 objn: 48710 tsn: 6 afn: 12 hash: [700000485f12138,700000485f12138] lru: [70000025af67790,700000132f69ee0] lru-flags: hot_buffer ckptq: [NULL] fileq: [NULL] objq: [700000114f5dd10,70000028bf5d620] use: [70000046fdfe570,70000046fdfe570] wait: [NULL] st: SCURRENT md: SHR tch: 0 flags: affinity_lock LRBA: [0x0.0.0] HSCN: [0xffff.ffffffff] HSUB: [65535] where: kdswh02: kdsgrp, why: 0 # Example: #
本文转自maclean_007 51CTO博客，原文链接:http://blog.51cto.com/maclean/1278316
