11.4. Parameters for reserving HugeTLB pages at run time

Use the following parameters to influence HugeTLB page behavior at run time.

For more information about how to use these parameters to configure HugeTLB pages at run time, see Configuring HugeTLB at run time.

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表 11.2. Parameters used to configure HugeTLB pages at run time
Parameter	Description	File name
`nr_hugepages`	Defines the number of huge pages of a specified size assigned to a specified NUMA node.	`/sys/devices/system/node/node_id/hugepages/hugepages-size/nr_hugepages`
`nr_overcommit_hugepages`	Defines the maximum number of additional huge pages that can be created and used by the system through overcommitting memory. Writing any non-zero value into this file indicates that the system obtains that number of huge pages from the kernel’s normal page pool if the persistent huge page pool is exhausted. As these surplus huge pages become unused, they are then freed and returned to the kernel’s normal page pool.	`/proc/sys/vm/nr_overcommit_hugepages`