GIMR默认使用HugePages

最新推荐文章于 2022-04-01 11:19:16 发布

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最新推荐文章于 2022-04-01 11:19:16 发布

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文章标签： GIMR hugepage

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本文讨论了Oracle Grid Infrastructure Management Repository (GIMR) 默认使用HugePages的情况，并强调了正确配置HugePages内存分配的重要性，以确保所有数据库及GIMR的System Global Area (SGA)能够充分利用HugePages，从而避免性能下降。

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---GIMR默认使用HugePages
During Oracle Grid Infrastructure installation, the Grid Infrastructure Management
Repository (GIMR) is configured to use HugePages. Because the Grid Infrastructure
Management Repository database starts before all other databases installed on the
cluster, if the space allocated to HugePages is insufficient, then the System Global
Area (SGA) of one or more databases may be mapped to regular pages, instead of
Hugepages, which can adversely affect performance. Configure the HugePages
memory allocation to a size large enough to accommodate the sum of the SGA sizes of
all the databases you intend to install on the cluster, as well as the Grid Infrastructure
Management Repository.