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40 lines
1.4 KiB
40 lines
1.4 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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config CACHEFILES |
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tristate "Filesystem caching on files" |
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depends on FSCACHE && BLOCK |
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help |
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This permits use of a mounted filesystem as a cache for other |
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filesystems - primarily networking filesystems - thus allowing fast |
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local disk to enhance the speed of slower devices. |
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See Documentation/filesystems/caching/cachefiles.rst for more |
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information. |
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config CACHEFILES_DEBUG |
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bool "Debug CacheFiles" |
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depends on CACHEFILES |
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help |
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This permits debugging to be dynamically enabled in the filesystem |
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caching on files module. If this is set, the debugging output may be |
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enabled by setting bits in /sys/modules/cachefiles/parameter/debug or |
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by including a debugging specifier in /etc/cachefilesd.conf. |
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config CACHEFILES_HISTOGRAM |
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bool "Gather latency information on CacheFiles" |
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depends on CACHEFILES && PROC_FS |
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help |
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This option causes latency information to be gathered on CacheFiles |
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operation and exported through file: |
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/proc/fs/cachefiles/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/cachefiles.rst for more |
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information.
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