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![Mauro Carvalho Chehab](/assets/img/avatar_default.png)
- Add a SPDX header; - Adjust document and section titles; - Comment out text ToC for html/pdf output; - Some whitespace fixes and new line breaks; - Add table markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/e33ec382a53cf10ffcbd802f6de3f384159cddba.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
62 lines
2.3 KiB
Text
62 lines
2.3 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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config FSCACHE
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tristate "General filesystem local caching manager"
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help
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This option enables a generic filesystem caching manager that can be
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used by various network and other filesystems to cache data locally.
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Different sorts of caches can be plugged in, depending on the
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resources available.
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See Documentation/filesystems/caching/fscache.rst for more information.
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config FSCACHE_STATS
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bool "Gather statistical information on local caching"
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depends on FSCACHE && PROC_FS
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help
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This option causes statistical information to be gathered on local
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caching and exported through file:
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/proc/fs/fscache/stats
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The gathering of statistics adds a certain amount of overhead to
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execution as there are a quite a few stats gathered, and on a
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multi-CPU system these may be on cachelines that keep bouncing
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between CPUs. On the other hand, the stats are very useful for
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debugging purposes. Saying 'Y' here is recommended.
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See Documentation/filesystems/caching/fscache.rst for more information.
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config FSCACHE_HISTOGRAM
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bool "Gather latency information on local caching"
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depends on FSCACHE && PROC_FS
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help
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This option causes latency information to be gathered on local
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caching and exported through file:
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/proc/fs/fscache/histogram
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The generation of this histogram adds a certain amount of overhead to
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execution as there are a number of points at which data is gathered,
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and on a multi-CPU system these may be on cachelines that keep
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bouncing between CPUs. On the other hand, the histogram may be
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useful for debugging purposes. Saying 'N' here is recommended.
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See Documentation/filesystems/caching/fscache.rst for more information.
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config FSCACHE_DEBUG
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bool "Debug FS-Cache"
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depends on FSCACHE
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help
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This permits debugging to be dynamically enabled in the local caching
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management module. If this is set, the debugging output may be
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enabled by setting bits in /sys/modules/fscache/parameter/debug.
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See Documentation/filesystems/caching/fscache.rst for more information.
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config FSCACHE_OBJECT_LIST
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bool "Maintain global object list for debugging purposes"
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depends on FSCACHE && PROC_FS
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help
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Maintain a global list of active fscache objects that can be
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retrieved through /proc/fs/fscache/objects for debugging purposes
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