/proc/sys/vm/
关于Linux cached内存简析 - CSDN博客 http://blog.csdn.net/fox_hacker/article/details/41351687
[root@iZ config]# ll -as /proc/sys/vm/
total 0
0 dr-xr-xr-x 1 root root 0 Mar 15 11:05 .
0 dr-xr-xr-x 1 root root 0 Jan 5 04:41 ..
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 admin_reserve_kbytes
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 block_dump
0 --w------- 1 root root 0 Mar 15 11:05 compact_memory
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 dirty_background_bytes
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 dirty_background_ratio
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 dirty_bytes
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 dirty_expire_centisecs
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 dirty_ratio
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 dirty_writeback_centisecs
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 drop_caches
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 extfrag_threshold
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 hugepages_treat_as_movable
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 hugetlb_shm_group
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 laptop_mode
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 legacy_va_layout
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 lowmem_reserve_ratio
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 max_map_count
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 memory_failure_early_kill
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 memory_failure_recovery
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 min_free_kbytes
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 min_slab_ratio
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 min_unmapped_ratio
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 mmap_min_addr
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 nr_hugepages
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 nr_hugepages_mempolicy
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 nr_overcommit_hugepages
0 -r--r--r-- 1 root root 0 Mar 15 11:05 nr_pdflush_threads
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 numa_zonelist_order
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 oom_dump_tasks
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 oom_kill_allocating_task
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 overcommit_kbytes
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 overcommit_memory
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 overcommit_ratio
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 page-cluster
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 panic_on_oom
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 percpu_pagelist_fraction
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 scan_unevictable_pages
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 stat_interval
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 swappiness
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 user_reserve_kbytes
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 vfs_cache_pressure
0 -rw-r--r-- 1 root root 0 Mar 15 11:05 zone_reclaim_mode
[root@iZ config]# free -g