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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 03:55:54 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 03:55:54 +0300 |
commit | ff6135959a9150ad45cb92ca38da270903a74343 (patch) | |
tree | 31d7f607078641a425851fc58bed311e3c84f175 /Documentation/translations/zh_CN/arm64/perf.rst | |
parent | f9b4240b074730f41c1ef8e0d695d10fb5bb1e27 (diff) | |
parent | 47e44ed01434e51e2e42b188482d837c01e5d16e (diff) | |
download | linux-ff6135959a9150ad45cb92ca38da270903a74343.tar.xz |
Merge tag 'docs-5.11' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"A much quieter cycle for documentation (happily), with, one hopes, the
bulk of the churn behind us. Significant stuff in this pull includes:
- A set of new Chinese translations
- Italian translation updates
- A mechanism from Mauro to automatically format
Documentation/features for the built docs
- Automatic cross references without explicit :ref: markup
- A new reset-controller document
- An extensive new document on reporting problems from Thorsten
That last patch also adds the CC-BY-4.0 license to LICENSES/dual;
there was some discussion on this, but we seem to have consensus and
an ack from Greg for that addition"
* tag 'docs-5.11' of git://git.lwn.net/linux: (50 commits)
docs: fix broken cross reference in translations/zh_CN
docs: Note that sphinx 1.7 will be required soon
docs: update requirements to install six module
docs: reporting-issues: move 'outdated, need help' note to proper place
docs: Update documentation to reflect what TAINT_CPU_OUT_OF_SPEC means
docs: add a reset controller chapter to the driver API docs
docs: make reporting-bugs.rst obsolete
docs: Add a new text describing how to report bugs
LICENSES: Add the CC-BY-4.0 license
Documentation: fix multiple typos found in the admin-guide subdirectory
Documentation: fix typos found in admin-guide subdirectory
kernel-doc: Fix example in Nested structs/unions
docs: clean up sysctl/kernel: titles, version
docs: trace: fix event state structure name
docs: nios2: add missing ReST file
scripts: get_feat.pl: reduce table width for all features output
scripts: get_feat.pl: change the group by order
scripts: get_feat.pl: make complete table more coincise
scripts: kernel-doc: fix parsing function-like typedefs
Documentation: fix typos found in process, dev-tools, and doc-guide subdirectories
...
Diffstat (limited to 'Documentation/translations/zh_CN/arm64/perf.rst')
-rw-r--r-- | Documentation/translations/zh_CN/arm64/perf.rst | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/Documentation/translations/zh_CN/arm64/perf.rst b/Documentation/translations/zh_CN/arm64/perf.rst new file mode 100644 index 000000000000..9bf21d73f4d1 --- /dev/null +++ b/Documentation/translations/zh_CN/arm64/perf.rst @@ -0,0 +1,86 @@ +.. SPDX-License-Identifier: GPL-2.0 + +.. include:: ../disclaimer-zh_CN.rst + +:Original: :ref:`Documentation/arm64/perf.rst <perf_index>` + +Translator: Bailu Lin <bailu.lin@vivo.com> + +============= +Perf 事件属性 +============= + +:作者: Andrew Murray <andrew.murray@arm.com> +:日期: 2019-03-06 + +exclude_user +------------ + +该属性排除用户空间。 + +用户空间始终运行在 EL0,因此该属性将排除 EL0。 + + +exclude_kernel +-------------- + +该属性排除内核空间。 + +打开 VHE 时内核运行在 EL2,不打开 VHE 时内核运行在 EL1。客户机 +内核总是运行在 EL1。 + +对于宿主机,该属性排除 EL1 和 VHE 上的 EL2。 + +对于客户机,该属性排除 EL1。请注意客户机从来不会运行在 EL2。 + + +exclude_hv +---------- + +该属性排除虚拟机监控器。 + +对于 VHE 宿主机该属性将被忽略,此时我们认为宿主机内核是虚拟机监 +控器。 + +对于 non-VHE 宿主机该属性将排除 EL2,因为虚拟机监控器运行在 EL2 +的任何代码主要用于客户机和宿主机的切换。 + +对于客户机该属性无效。请注意客户机从来不会运行在 EL2。 + + +exclude_host / exclude_guest +---------------------------- + +这些属性分别排除了 KVM 宿主机和客户机。 + +KVM 宿主机可能运行在 EL0(用户空间),EL1(non-VHE 内核)和 +EL2(VHE 内核 或 non-VHE 虚拟机监控器)。 + +KVM 客户机可能运行在 EL0(用户空间)和 EL1(内核)。 + +由于宿主机和客户机之间重叠的异常级别,我们不能仅仅依靠 PMU 的硬件异 +常过滤机制-因此我们必须启用/禁用对于客户机进入和退出的计数。而这在 +VHE 和 non-VHE 系统上表现不同。 + +对于 non-VHE 系统的 exclude_host 属性排除 EL2 - 在进入和退出客户 +机时,我们会根据 exclude_host 和 exclude_guest 属性在适当的情况下 +禁用/启用该事件。 + +对于 VHE 系统的 exclude_guest 属性排除 EL1,而对其中的 exclude_host +属性同时排除 EL0,EL2。在进入和退出客户机时,我们会适当地根据 +exclude_host 和 exclude_guest 属性包括/排除 EL0。 + +以上声明也适用于在 not-VHE 客户机使用这些属性时,但是请注意客户机从 +来不会运行在 EL2。 + + +准确性 +------ + +在 non-VHE 宿主机上,我们在 EL2 进入/退出宿主机/客户机的切换时启用/ +关闭计数器 -但是在启用/禁用计数器和进入/退出客户机之间存在一段延时。 +对于 exclude_host, 我们可以通过过滤 EL2 消除在客户机进入/退出边界 +上用于计数客户机事件的宿主机事件计数器。但是当使用 !exclude_hv 时, +在客户机进入/退出有一个小的停电窗口无法捕获到宿主机的事件。 + +在 VHE 系统没有停电窗口。 |