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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/zh_CN/basic_profiling.txt | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/Documentation/zh_CN/basic_profiling.txt')
-rw-r--r-- | kernel/Documentation/zh_CN/basic_profiling.txt | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/kernel/Documentation/zh_CN/basic_profiling.txt b/kernel/Documentation/zh_CN/basic_profiling.txt new file mode 100644 index 000000000..1e6bf0bdf --- /dev/null +++ b/kernel/Documentation/zh_CN/basic_profiling.txt @@ -0,0 +1,71 @@ +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 Contact the Chinese maintainer, if this +translation is outdated or there is problem with translation.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。 + |