The lrus Field

onconfig.std value

lrus=8

syntax

lrus=num_lrus

units

Number of LRU queues

range of values

32-bit platforms: 1 through 128
64-bit platforms: 1 through 512

The lrus field specifies the number of LRU (least-recently-used) queues in the shared-memory buffer pool. You can tune the value of lrus, in combination with the lru_min_dirty and lru_max_dirty fields, to control how frequently the shared-memory buffers are flushed to disk.

Setting lrus too high might result in excessive page-cleaner activity.