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Searched refs:deduplication (Results 1 – 14 of 14) sorted by relevance

/linux/Documentation/arch/powerpc/
H A Dvmemmap_dedup.rst7 The device-dax interface uses the tail deduplication technique explained in
10 On powerpc, vmemmap deduplication is only used with radix MMU translation. Also
12 deduplication.
16 vmemmap deduplication possible.
/linux/drivers/md/dm-vdo/
H A DKconfig4 tristate "VDO: deduplication and compression target"
13 deduplication, compression and thin-provisioning.
H A Dtypes.h226 bool deduplication; member
H A Ddm-vdo-target.c598 return parse_bool(value, "on", "off", &config->deduplication); in parse_one_key_value_pair()
759 config->deduplication = true; in parse_device_config()
1464 vdo_log_debug("Deduplication = %s", (config->deduplication ? "on" : "off")); in vdo_initialize()
2244 if (vdo->device_config->deduplication) { in load_callback()
H A Ddedupe.c2590 if (config->deduplication) { in resume_index()
/linux/Documentation/admin-guide/device-mapper/
H A Dvdo-design.rst7 The dm-vdo (virtual data optimizer) target provides inline deduplication,
16 Because deduplication rates fall drastically as the block size increases, a
18 deduplication rates of 254:1, i.e. up to 254 copies of a given 4K block can
25 The design of dm-vdo is based on the idea that deduplication is a two-part
28 parts: a deduplication index (called UDS) that is used to discover
39 block sizes in order to achieve good deduplication rates, acceptable
78 ultimate goal of deduplication is to reduce storage costs. Since there is a
166 called the deduplication window. If new writes duplicate data that is older
171 result in no deduplication, because the beginning of the file will no
176 deduplication beyond the 256GB threshold, vdo can be configured to use a
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H A Dvdo.rst8 block-level deduplication, compression, and thin provisioning. As a device
43 deduplication and compression is not cancelled out by the metadata
137 deduplication based on the hash value of data blocks. The
166 deduplication:
167 Whether deduplication is enabled. The default is 'on'; the
180 <maxDiscard>, <compression>, and <deduplication>.
302 The current state of the deduplication index in the vdo
330 The deduplication index requires additional memory which scales with the
331 size of the deduplication window. For dense indexes, the index requires 1
/linux/Documentation/mm/
H A Dksm.rst45 The deduplication limit enforced by ``max_page_sharing`` is required
60 deduplication factor at the expense of slower worst case for rmap
H A Dvmemmap_dedup.rst188 The device-dax interface uses the same tail deduplication technique explained
202 System RAM ranges initialized at boot. Thus the tail page deduplication
/linux/Documentation/filesystems/
H A Dbtrfs.rst23 * Reflink, deduplication
H A Derofs.rst70 - Support chunk-based data deduplication and rolling-hash compressed data
71 deduplication;
277 In order to support chunk-based data deduplication, a new inode data layout has
377 therefore it can be used for compressed data deduplication.
/linux/fs/erofs/
H A DKconfig30 chunk-based deduplication ensure space efficiency while maintaining
37 compression and fine-grained deduplication. It utilizes fixed-size
/linux/Documentation/admin-guide/mm/
H A Dksm.rst137 deduplication limit to avoid high latency for virtual memory
142 deduplication factor will be, but the slower the worst case
155 that hit the deduplication limit for stale information.
/linux/Documentation/filesystems/xfs/
H A Dxfs-online-fsck-design.rst971 defeats device-level deduplication because the filesystem requires real