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| author | Dongliang Mu <dzm91@hust.edu.cn> | 2024-10-19 16:54:56 +0800 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2024-10-24 14:54:45 -0600 |
| commit | 20e845db4678c1d7febb1d72165e88b59ef965e4 (patch) | |
| tree | 429249cc45e01b8ac79feb3d4c05b1950dd2f786 /Documentation/translations | |
| parent | 9d197b627e5f696adfd06e57343c41e8c128bfa5 (diff) | |
docs/zh_CN: update the translation of mm/page_owner.rst
Update to commit f5c12105c15f ("mm,page_owner: fix refcount imbalance")
Documentation/translations/zh_CN/mm/page_owner.rst
commit f5c12105c15f ("mm,page_owner: fix refcount imbalance")
commit ba6fe5377244 ("mm,page_owner: update Documentation regarding
page_owner_stacks")
2 commits needs resolving in total
Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <38a9d8868e0f98dc5d2a08fb865313cc4db943a3.1729327831.git.dzm91@hust.edu.cn>
Diffstat (limited to 'Documentation/translations')
| -rw-r--r-- | Documentation/translations/zh_CN/mm/page_owner.rst | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/translations/zh_CN/mm/page_owner.rst b/Documentation/translations/zh_CN/mm/page_owner.rst index b72a972271d9..c0d1ca4b9695 100644 --- a/Documentation/translations/zh_CN/mm/page_owner.rst +++ b/Documentation/translations/zh_CN/mm/page_owner.rst @@ -26,6 +26,9 @@ page owner是用来追踪谁分配的每一个页面。它可以用来调试内 页面所有者也可以用于各种目的。例如，可以通过每个页面的gfp标志信息获得精确的碎片 统计。如果启用了page owner，它就已经实现并激活了。我们非常欢迎其他用途。 +它也可以用来显示所有的栈以及它们当前分配的基础页面数，这让我们能够快速了解内存的 +使用情况，而无需浏览所有页面并匹配分配和释放操作。 + page owner在默认情况下是禁用的。所以，如果你想使用它，你需要在你的启动cmdline 中加入"page_owner=on"。如果内核是用page owner构建的，并且由于没有启用启动 选项而在运行时禁用page owner，那么运行时的开销是很小的。如果在运行时禁用，它不 @@ -60,6 +63,49 @@ page owner在默认情况下是禁用的。所以，如果你想使用它，你 4) 分析来自页面所有者的信息:: + cat /sys/kernel/debug/page_owner_stacks/show_stacks > stacks.txt + cat stacks.txt + post_alloc_hook+0x177/0x1a0 + get_page_from_freelist+0xd01/0xd80 + __alloc_pages+0x39e/0x7e0 + allocate_slab+0xbc/0x3f0 + ___slab_alloc+0x528/0x8a0 + kmem_cache_alloc+0x224/0x3b0 + sk_prot_alloc+0x58/0x1a0 + sk_alloc+0x32/0x4f0 + inet_create+0x427/0xb50 + __sock_create+0x2e4/0x650 + inet_ctl_sock_create+0x30/0x180 + igmp_net_init+0xc1/0x130 + ops_init+0x167/0x410 + setup_net+0x304/0xa60 + copy_net_ns+0x29b/0x4a0 + create_new_namespaces+0x4a1/0x820 + nr_base_pages: 16 + ... + ... + echo 7000 > /sys/kernel/debug/page_owner_stacks/count_threshold + cat /sys/kernel/debug/page_owner_stacks/show_stacks> stacks_7000.txt + cat stacks_7000.txt + post_alloc_hook+0x177/0x1a0 + get_page_from_freelist+0xd01/0xd80 + __alloc_pages+0x39e/0x7e0 + alloc_pages_mpol+0x22e/0x490 + folio_alloc+0xd5/0x110 + filemap_alloc_folio+0x78/0x230 + page_cache_ra_order+0x287/0x6f0 + filemap_get_pages+0x517/0x1160 + filemap_read+0x304/0x9f0 + xfs_file_buffered_read+0xe6/0x1d0 [xfs] + xfs_file_read_iter+0x1f0/0x380 [xfs] + __kernel_read+0x3b9/0x730 + kernel_read_file+0x309/0x4d0 + __do_sys_finit_module+0x381/0x730 + do_syscall_64+0x8d/0x150 + entry_SYSCALL_64_after_hwframe+0x62/0x6a + nr_base_pages: 20824 + ... + cat /sys/kernel/debug/page_owner > page_owner_full.txt ./page_owner_sort page_owner_full.txt sorted_page_owner.txt |