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authorliang xie <xieliang007@gmail.com>2012-08-26 20:06:45 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-07 02:09:25 +0400
commitef4158c5634e3819f93499d598ca617c29307ffd (patch)
tree47f8597e4b1d599ebbbbadfd27ea0084cc49a20a /Documentation/zh_CN
parent39e68089f6e175dcc81743cb65dd075f4fab98a6 (diff)
downloadlinux-ef4158c5634e3819f93499d598ca617c29307ffd.tar.xz
Document:add Chinese translation of basic_profiling.txt
This is a Chinese translated version of Documentation/basic_profiling.txt Signed-off-by: Liang Xie <xieliang007@gmail.com> Acked-by: Harry Wei <harryxiyou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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+Chinese translated version of Documentation/basic_profiling
+
+If you have any comment or update to the content, please post to LKML directly.
+However, if you have problem communicating in English you can also ask the
+Chinese maintainer for help. Contact the Chinese maintainer, if this
+translation is outdated or there is problem with translation.
+
+Chinese maintainer: Liang Xie <xieliang@xiaomi.com>
+---------------------------------------------------------------------
+Documentation/basic_profiling的中文翻译
+
+如果想评论或更新本文的内容,请直接发信到LKML。如果你使用英文交流有困难的话,也可
+以向中文版维护者求助。如果本翻译更新不及时或者翻译存在问题,请联系中文版维护者。
+
+中文版维护者: 谢良 Liang Xie <xieliang007@gmail.com>
+中文版翻译者: 谢良 Liang Xie <xieliang007@gmail.com>
+中文版校译者:
+以下为正文
+---------------------------------------------------------------------
+
+下面这些说明指令都是非常基础的,如果你想进一步了解请阅读相关专业文档:)
+请不要再在本文档增加新的内容,但可以修复文档中的错误:)(mbligh@aracnet.com)
+感谢John Levon,Dave Hansen等在撰写时的帮助
+
+<test> 用于表示要测量的目标
+请先确保您已经有正确的System.map / vmlinux配置!
+
+对于linux系统来说,配置vmlinuz最容易的方法可能就是使用“make install”,然后修改
+/sbin/installkernel将vmlinux拷贝到/boot目录,而System.map通常是默认安装好的
+
+Readprofile
+-----------
+2.6系列内核需要版本相对较新的readprofile,比如util-linux 2.12a中包含的,可以从:
+
+http://www.kernel.org/pub/linux/utils/util-linux/ 下载
+
+大部分linux发行版已经包含了.
+
+启用readprofile需要在kernel启动命令行增加”profile=2“
+
+clear readprofile -r
+ <test>
+dump output readprofile -m /boot/System.map > captured_profile
+
+Oprofile
+--------
+
+从http://oprofile.sourceforge.net/获取源代码(请参考Changes以获取匹配的版本)
+在kernel启动命令行增加“idle=poll”
+
+配置CONFIG_PROFILING=y和CONFIG_OPROFILE=y然后重启进入新kernel
+
+./configure --with-kernel-support
+make install
+
+想得到好的测量结果,请确保启用了本地APIC特性。如果opreport显示有0Hz CPU,
+说明APIC特性没有开启。另外注意idle=poll选项可能有损性能。
+
+One time setup:
+ opcontrol --setup --vmlinux=/boot/vmlinux
+
+clear opcontrol --reset
+start opcontrol --start
+ <test>
+stop opcontrol --stop
+dump output opreport > output_file
+
+如果只看kernel相关的报告结果,请运行命令 opreport -l /boot/vmlinux > output_file
+
+通过reset选项可以清理过期统计数据,相当于重启的效果。
+