therefore, depends on the objects to be kept in the buffer cache.You can compute an approximate size for the KEEP buffer pool by adding theblocks used by all objects assigned to this pool. Ifyou gather statistics on the segments, you can query ...
3.在我的实验里,一旦表被强行刷出内存或者因keep pool不足而被挤出内存或者数据库重新启动,即使db_keep_cache_size空间足够大,其他数据库对象属性的修改、分析及数据库的重启,都不能让该对象重新回到内存,必须对该表进行再次分析,才能使该表重新回到内存; 4.刚才看到资料,忽然想起了keep buffer中对象的undo信息也...
Oracle Buffer Cache的keep、recycle、default pool概念图解
MyISAM可以在默认的 key_buffer_size 设置下运行的可以,然而Innodb在默认的 innodb_buffer_pool_size 设置下却跟 (0)踩踩(0) 所需:1积分 系统采用JAVA+MYSQL架构,自适应手机端和电脑端,界面简洁,性能高效.zip 2025-03-11 10:28:11 积分:1 经典SQL练习题,你还怕Sql不过关吗.zip ...
当BUFFER_POOL和CACHE同时使用时,KEEP比NOCACHE有优先权。 BUFFER_POOL用来指定存贮的缓冲池,而CACHE/NOCACHE指定存储的方式。 1.2 官网说明 Ifthere are certain segments in your application that are referenced frequently,then store the blocks from those segments in a separate cache called the KEEPbuffer po...
* Default pool: The location where all segment blocks are normally cached. This is the original¿and previously only¿buffer pool. * Keep pool: An alternate buffer pool where by convention you would assign segments that were accessed fairly frequently, but still got aged out of the default...