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From: Yanteng Si <siyanteng01@gmail.com>
To: corbet@lwn.net, alexs@kernel.org, seakeel@gmail.com
Cc: Yanteng Si <siyanteng01@gmail.com>,
	chenhuacai@kernel.org, jiaxun.yang@flygoat.com,
	linux-doc@vger.kernel.org, Yanteng Si <siyanteng@loongson.cn>
Subject: [PATCH v3 11/12] docs/zh_CN: add vm z3fold translation
Date: Mon, 28 Mar 2022 17:59:53 +0800	[thread overview]
Message-ID: <b9161a3c6a476d06885b2873c1ede5d5538938a6.1648458742.git.siyanteng@loongson.cn> (raw)
In-Reply-To: <cover.1648458742.git.siyanteng@loongson.cn>

From: Yanteng Si <siyanteng01@gmail.com>

Translate .../vm/z3fold.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
---
 Documentation/translations/zh_CN/vm/index.rst |  2 +-
 .../translations/zh_CN/vm/z3fold.rst          | 31 +++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/translations/zh_CN/vm/z3fold.rst

diff --git a/Documentation/translations/zh_CN/vm/index.rst b/Documentation/translations/zh_CN/vm/index.rst
index 8c7d0b1e5c3e..e28d0e919bfe 100644
--- a/Documentation/translations/zh_CN/vm/index.rst
+++ b/Documentation/translations/zh_CN/vm/index.rst
@@ -37,6 +37,7 @@ TODO:待引用文档集被翻译完毕后请及时修改此处）
    page_table_check
    remap_file_pages
    split_page_table_lock
+   z3fold
 
 TODOLIST:
 * arch_pgtable_helpers
@@ -49,5 +50,4 @@ TODOLIST:
 * transhuge
 * unevictable-lru
 * vmalloced-kernel-stacks
-* z3fold
 * zsmalloc
diff --git a/Documentation/translations/zh_CN/vm/z3fold.rst b/Documentation/translations/zh_CN/vm/z3fold.rst
new file mode 100644
index 000000000000..57204aa08caa
--- /dev/null
+++ b/Documentation/translations/zh_CN/vm/z3fold.rst
@@ -0,0 +1,31 @@
+:Original: Documentation/vm/z3fold.rst
+
+:翻译:
+
+ 司延腾 Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+
+======
+z3fold
+======
+
+z3fold是一个专门用于存储压缩页的分配器。它被设计为每个物理页最多可以存储三个压缩页。
+它是zbud的衍生物，允许更高的压缩率，保持其前辈的简单性和确定性。
+
+z3fold和zbud的主要区别是:
+
+* 与zbud不同的是，z3fold允许最大的PAGE_SIZE分配。
+* z3fold在其页面中最多可以容纳3个压缩页面
+* z3fold本身没有输出任何API，因此打算通过zpool的API来使用
+
+为了保持确定性和简单性，z3fold，就像zbud一样，总是在每页存储一个整数的压缩页，但是
+它最多可以存储3页，不像zbud最多可以存储2页。因此压缩率达到2.7倍左右，而zbud的压缩
+率是1.7倍左右。
+
+不像zbud（但也像zsmalloc），z3fold_alloc()那样不返回一个可重复引用的指针。相反，它
+返回一个无符号长句柄，它编码了被分配对象的实际位置。
+
+保持有效的压缩率接近于zsmalloc，z3fold不依赖于MMU的启用，并提供更可预测的回收行
+为，这使得它更适合于小型和反应迅速的系统。
-- 
2.27.0


  parent reply	other threads:[~2022-03-28  9:59 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-28  9:59 [PATCH v3 00/12] docs/zh_CN: add a little vm translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 01/12] docs/zh_CN: add vm frontswap translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 02/12] docs/zh_CN: add vm hwpoison translation Yanteng Si
2022-03-28 12:19   ` Alex Shi
2022-03-28  9:59 ` [PATCH v3 03/12] docs/zh_CN: add vm memory-model translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 04/12] docs/zh_CN: add vm mmu_notifier translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 05/12] docs/zh_CN: add vm overcommit-accounting translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 06/12] docs/zh_CN: add vm page_frags translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 07/12] docs/zh_CN: add vm page_owner translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 08/12] docs/zh_CN: add vm page_table_check translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 09/12] docs/zh_CN: add vm remap_file_pages translation Yanteng Si
2022-03-28  9:59 ` [PATCH v3 10/12] docs/zh_CN: add vm split_page_table_lock translation Yanteng Si
2022-03-28  9:59 ` Yanteng Si [this message]
2022-03-28  9:59 ` [PATCH v3 12/12] docs/zh_CN: add vm zsmalloc translation Yanteng Si
2022-04-05 16:13 ` [PATCH v3 00/12] docs/zh_CN: add a little vm translation Jonathan Corbet

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