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| /Documentation/ABI/testing/ |
| D | sysfs-kernel-mm-ksm | 19 full_scans: how many times all mergeable areas have been
22 pages_shared: how many shared pages are being used.
24 pages_sharing: how many more sites are sharing them i.e. how
27 pages_to_scan: how many present pages to scan before ksmd goes
30 pages_unshared: how many pages unique but repeatedly checked
33 pages_volatile: how many pages changing too fast to be placed
41 sleep_millisecs: how many milliseconds ksm should sleep between
59 Description: Measure how effective KSM is.
60 general_profit: how effective is KSM. The formula for the
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| D | sysfs-kernel-slab | 19 The aliases file is read-only and specifies how many caches
48 The alloc_fastpath file shows how many objects have been
59 The alloc_from_partial file shows how many times a cpu slab has
71 The alloc_refill file shows how many times the per-cpu freelist
82 The alloc_slab file is shows how many times a new slab had to
93 The alloc_slowpath file shows how many objects have been
115 The cpu_slabs file is read-only and displays how many cpu slabs
124 The file cpuslab_flush shows how many times a cache's cpu slabs
147 The deactivate_empty file shows how many times an empty cpu slab
157 The deactivate_full file shows how many times a full cpu slab
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| D | sysfs-class-led-trigger-oneshot | 6 Specifies for how many milliseconds the LED has to stay at
15 Specifies for how many milliseconds the LED has to stay at
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| /Documentation/admin-guide/mm/ |
| D | ksm.rst | 80 how many pages to scan before ksmd goes to sleep
89 how many milliseconds ksmd should sleep before next scan
102 sharing of setting 1 (default). You may wish to compare how
154 specifies how frequently KSM checks the metadata of the pages
165 skipped. How often these pages are skipped depends on how often
167 optimization is enabled. The ``pages_skipped`` metric shows how
174 The section about ``advisor`` explains in detail how the scan time
196 how effective is KSM. The calculation is explained below.
198 how many pages are being scanned for ksm
200 how many shared pages are being used
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| /Documentation/driver-api/virtio/ |
| D | virtio.rst | 47 reference definitions of virtqueues and "Virtqueues and virtio ring: How
48 the data travels" blog post (`[2]`_) for an illustrated overview of how
77 How a virtio device is found and configured by the kernel depends on how
140 _`[2]` Virtqueues and virtio ring: How the data travels
141 https://www.redhat.com/en/blog/virtqueues-and-virtio-ring-how-data-travels
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| /Documentation/bpf/ |
| D | map_array.rst | 106 This snippet shows how to declare an array in a BPF program.
118 This example BPF program shows how to access an array element.
145 This snippet shows how to create an array, using ``bpf_map_create_opts`` to
167 This snippet shows how to initialize the elements of an array.
187 This snippet shows how to retrieve an element value from an array.
210 This snippet shows how to initialize the elements of a per CPU array.
232 This snippet shows how to access the per CPU elements of an array value.
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| /Documentation/devicetree/bindings/soc/qcom/ |
| D | qcom,rpm-master-stats.yaml | 21 our device has entered the desired low-power mode, how long it took to do so,
22 the duration of that residence, how long it took to come back online,
23 how many times a given sleep state was entered and which cores are actively
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| /Documentation/driver-api/gpio/ |
| D | intro.rst | 9 The documents in this directory give detailed instructions on how to access
10 GPIOs in drivers, and how to write a driver for a device that provides GPIOs
32 firmware knowing how they're used).
37 options about how that value is driven, so that for example only one
110 example, that's how I2C clocks are stretched: a slave that needs a slower clock
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| /Documentation/userspace-api/media/v4l/ |
| D | vidioc-subdev-enum-mbus-code.rst | 119 See :ref:`v4l2-mbus-format` on how to do this.
126 See :ref:`v4l2-mbus-format` on how to do this.
133 See :ref:`v4l2-mbus-format` on how to do this.
140 See :ref:`v4l2-mbus-format` on how to do this.
147 See :ref:`v4l2-mbus-format` on how to do this.
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| /Documentation/filesystems/nfs/ |
| D | knfsd-stats.rst | 49 Counts how many NFS packets have arrived. More precisely, this
59 of how much CPU load is being placed on the sunrpc server layer
63 Counts how many times an NFS transport is enqueued to wait for
79 Counts how many times an idle nfsd thread is woken to try to
88 Counts how many times an nfsd thread triggered an idle timeout,
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| /Documentation/firmware-guide/acpi/ |
| D | extcon-intel-int3496.rst | 9 This ACPI device describes how the OS can read the id-pin of the devices'
10 USB-otg port, as well as how it optionally can enable Vbus output on the
11 otg port and how it can optionally control the muxing of the data pins
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| D | osi.rst | 16 This document explains how and why the BIOS and Linux should use these methods.
17 It also explains how and why they are widely misused.
19 How to use _OSI
43 for Linux to deal with how Linux is different from Windows.
62 That was easy. Read on, to find out how to do it wrong.
104 eg. _OSI("3.0 Thermal Model") would return TRUE if the OS knows how
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| /Documentation/gpu/ |
| D | automated_testing.rst | 21 can be used as well for testing the DRM subsystem. This document explains how
92 How to enable automated testing on your tree
113 How to update test expectations
122 How to expand coverage
134 How to test your changes to the scripts
143 How to incorporate external fixes in your testing
155 How to deal with automated testing labs that may be down
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| /Documentation/process/ |
| D | howto.rst | 7 instructions on how to become a Linux kernel developer and how to learn
20 So, you want to learn how to become a Linux kernel developer? Or you
24 and hints on how to work with the community. It will also try to
49 Please remember that you are trying to learn how to work with the
64 rules and how to use `SPDX <https://spdx.org/>`_ identifiers in source code are
79 invaluable for learning how to interact with the kernel community. When
81 documentation files are also added which explain how to use the feature.
108 This file describes in explicit detail how to successfully create
119 Other excellent descriptions of how to create patches properly are:
146 This document describes how Linux kernel maintainers operate and the
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| D | index.rst | 14 to learn about how our community works. Reading these documents will make
18 An introduction to how kernel development works
90 How to find the people who will accept your patches.
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| D | 7.AdvancedTopics.rst | 6 At this point, hopefully, you have a handle on how the development process
27 teach the reader how to use git; that would be sufficient material for a
28 long document in its own right. Instead, the focus here will be on how git
39 understanding of how git works before trying to use it to make patches
111 useful in such situations; it remembers how merge conflicts were resolved
157 learn how to program in the kernel environment than by looking at code
167 comments as questions rather than criticisms. Asking "how does the lock
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| /Documentation/usb/ |
| D | chipidea.rst | 5 1. How to test OTG FSM(HNP and SRP)
8 To show how to demo OTG HNP and SRP functions via sys input files
11 1.1 How to enable OTG FSM
106 2. How to enable USB as system wakeup source
108 Below is the example for how to enable USB as system wakeup source
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| /Documentation/power/ |
| D | swsusp-dmcrypt.rst | 2 How to use dm-crypt and swsusp together
10 You know how dm-crypt works. If not, visit the following web page:
13 You did read Documentation/admin-guide/initrd.rst and know how an initrd works.
14 You know how to create or how to modify an initrd.
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| /Documentation/driver-api/dmaengine/ |
| D | index.rst | 22 This book is a guide to device driver writers on how to use the Slave-DMA
33 This book introduces how to test DMA drivers using dmatest module.
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| /Documentation/litmus-tests/ |
| D | README | 7 For more information about how to "run" a litmus test or how to generate
56 shows how to use the "filter" clause to discard executions that
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| /Documentation/maintainer/ |
| D | maintainer-entry-profile.rst | 17 Provide an introduction to how the subsystem operates. While MAINTAINERS
85 One of the largest sources of contributor angst is how soon to ping
87 addition to specifying how long to wait before a resubmission this
90 list how review works for this code area and methods to get feedback
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| /Documentation/fb/ |
| D | deferred_io.rst | 7 IO. The following example may be a useful explanation of how one such setup
43 How to use it: (for applications)
47 How to use it: (for fbdev drivers)
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| /Documentation/networking/ |
| D | xsk-tx-metadata.rst | 7 This document describes how to enable offloads when transmitting packets
8 via :doc:`af_xdp`. Refer to :doc:`xdp-rx-metadata` on how to access similar
78 See ``tools/net/ynl/samples/netdev.c`` on how to query this information.
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| /Documentation/ABI/ |
| D | README | 32 layout of the files below for details on how to do this.)
50 Description: Long description of the interface and how to use it.
69 How things move between levels:
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| /Documentation/filesystems/ |
| D | index.rst | 8 comprehensive information on how the Linux virtual filesystem (VFS) layer
15 See these manuals for documentation about the VFS layer itself and how its
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