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