高端内存

http://blog.chinaunix.net/uid-15007890-id-3415331.html

http://www.uml.org.cn/embeded/201208071.asp

adb shell cat /proc/zoneinfo |vim -

Node 0, zone   Normal
  pages free     9777
        min      873
        low      3349
        high     3567
        scanned  0
        spanned  221184
        present  190568
    nr_free_pages 9777
    nr_inactive_anon 1038
    nr_active_anon 93685
    nr_inactive_file 12906
    nr_active_file 12504
    nr_unevictable 0
    nr_mlock     0
    nr_anon_pages 92559
    nr_mapped    22046
    nr_file_pages 27581
    nr_dirty     0
    nr_writeback 0
    nr_slab_reclaimable 3053
    nr_slab_unreclaimable 7910
    nr_page_table_pages 3779
    nr_kernel_stack 1356
    nr_unstable  0
    nr_bounce    0
    nr_vmscan_write 2002
    nr_vmscan_immediate_reclaim 1910
    nr_writeback_temp 0
    nr_isolated_anon 0
    nr_isolated_file 0
    nr_shmem     2167
    nr_dirtied   584526
    nr_written   570943
    nr_anon_transparent_hugepages 0
    nr_free_cma  0
        protection: (0, 1164, 1164)
  pagesets
    cpu: 0
              count: 64
              high:  186
              batch: 31
  vm stats threshold: 8
  all_unreclaimable: 0
  start_pfn:         0
  inactive_ratio:    1
Node 0, zone  HighMem
  pages free     516
        min      36
        low      519
        high     562
        scanned  0
        spanned  40960
        present  37272
    nr_free_pages 516
    nr_inactive_anon 66
    nr_active_anon 33731
    nr_inactive_file 0
    nr_active_file 0
    nr_unevictable 1153
    nr_mlock     0
    nr_anon_pages 33438
    nr_mapped    321
    nr_file_pages 1512
    nr_dirty     0
    nr_writeback 0
    nr_slab_reclaimable 0
    nr_slab_unreclaimable 0
    nr_page_table_pages 0
    nr_kernel_stack 0
    nr_unstable  0
    nr_bounce    0
    nr_vmscan_write 14642
    nr_vmscan_immediate_reclaim 56180
    nr_writeback_temp 0
    nr_isolated_anon 0
    nr_isolated_file 0
    nr_shmem     359
    nr_dirtied   7380
    nr_written   7037
    nr_anon_transparent_hugepages 0
    nr_free_cma  218
        protection: (0, 0, 0)
  pagesets
    cpu: 0
              count: 1
              high:  42
              batch: 7
  vm stats threshold: 125
  all_unreclaimable: 1
  start_pfn:         221184
  inactive_ratio:    1

http://blog.csdn.net/w_s_xin/article/details/5050656

http://www.cnblogs.com/xkfz007/articles/2715192.html