linux的hugepage的配置-优化oracle内存(二)

Make sure the total SGA is less than the installed RAM and re-calculate HugePages.

HugePages_Total = HugePages_Free

HugePages are not used at all. No database instances are up or using AMM.

Disable AMM and make sure that the database instances are up.

Database started successfully and the performance is slow

The SGA of the specific database could not find available HugePages and therefore the SGA is handled by regular pages, which leads to slow performance

Make sure that the HugePages are many enough to cover all your database SGAs