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Diffstat (limited to 'Documentation/sysctl/vm.txt')
| -rw-r--r-- | Documentation/sysctl/vm.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index d79eeda7a699..5e7329a1abcc 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -38,6 +38,7 @@ Currently, these files are in /proc/sys/vm: - numa_zonelist_order - nr_hugepages - nr_overcommit_hugepages +- slab_defrag_limit ============================================================== @@ -347,3 +348,14 @@ Change the maximum size of the hugepage pool. The maximum is nr_hugepages + nr_overcommit_hugepages. See Documentation/vm/hugetlbpage.txt + +============================================================== + +slab_defrag_limit + +Determines the frequency of calls from reclaim into slab defragmentation. +Slab defrag reclaims objects from sparsely populates slab pages. +The default is 1000. Increase if slab defragmentation occurs +too frequently. Decrease if more slab defragmentation passes +are needed. The slabinfo tool can report on the frequency of the callbacks. + |