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Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 45f2971ef642..89971a894b60 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -705,6 +705,17 @@ config HUGETLB_PAGE_SIZE_VARIABLE config CONTIG_ALLOC def_bool (MEMORY_ISOLATION && COMPACTION) || CMA +config PCP_BATCH_SCALE_MAX + int "Maximum scale factor of PCP (Per-CPU pageset) batch allocate/free" + default 5 + range 0 6 + help + In page allocator, PCP (Per-CPU pageset) is refilled and drained in + batches. The batch number is scaled automatically to improve page + allocation/free throughput. But too large scale factor may hurt + latency. This option sets the upper limit of scale factor to limit + the maximum latency. + config PHYS_ADDR_T_64BIT def_bool 64BIT |