| /kernel/linux/linux-4.19/Documentation/vm/ |
| D | zswap.rst | 10 Zswap is a lightweight compressed cache for swap pages. It takes pages that are
14 significant performance improvement if reads from the compressed cache are
34 Zswap evicts pages from compressed cache on an LRU basis to the backing swap
35 device when the compressed pool reaches its size limit. This requirement had
48 back into memory all of the pages stored in the compressed pool. The
49 pages stored in zswap will remain in the compressed pool until they are
51 pages out of the compressed pool, a swapoff on the swap device(s) will
53 compressed pool.
59 evict pages from its own compressed pool on an LRU basis and write them back to
60 the backing swap device in the case that the compressed pool is full.
[all …]
|
| /kernel/linux/linux-5.10/Documentation/vm/ |
| D | zswap.rst | 10 Zswap is a lightweight compressed cache for swap pages. It takes pages that are
14 significant performance improvement if reads from the compressed cache are
34 Zswap evicts pages from compressed cache on an LRU basis to the backing swap
35 device when the compressed pool reaches its size limit. This requirement had
50 back into memory all of the pages stored in the compressed pool. The
51 pages stored in zswap will remain in the compressed pool until they are
53 pages out of the compressed pool, a swapoff on the swap device(s) will
55 compressed pool.
61 evict pages from its own compressed pool on an LRU basis and write them back to
62 the backing swap device in the case that the compressed pool is full.
[all …]
|
| /kernel/linux/linux-4.19/Documentation/filesystems/ |
| D | squashfs.txt | 4 Squashfs is a compressed read-only filesystem for Linux.
46 compressed inode is on average 8 bytes in length (the exact length varies on
94 Compressed data blocks are written to the filesystem as files are read from
109 Metadata (inodes and directories) are compressed in 8Kbyte blocks. Each
110 compressed block is prefixed by a two byte length, the top bit is set if the
112 or if the compressed block was larger than the uncompressed block.
115 boundaries, therefore inodes overlap compressed blocks. Inodes are identified
116 by a 48-bit number which encodes the location of the compressed metadata block
132 Like inodes, directories are packed into compressed metadata blocks, stored
140 compressed metadata block, and therefore, can share the start block.
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|
| /kernel/linux/linux-5.10/Documentation/filesystems/ |
| D | squashfs.rst | 7 Squashfs is a compressed read-only filesystem for Linux.
52 compressed inode is on average 8 bytes in length (the exact length varies on
100 Compressed data blocks are written to the filesystem as files are read from
115 Metadata (inodes and directories) are compressed in 8Kbyte blocks. Each
116 compressed block is prefixed by a two byte length, the top bit is set if the
118 or if the compressed block was larger than the uncompressed block.
121 boundaries, therefore inodes overlap compressed blocks. Inodes are identified
122 by a 48-bit number which encodes the location of the compressed metadata block
138 Like inodes, directories are packed into compressed metadata blocks, stored
146 compressed metadata block, and therefore, can share the start block.
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|
| /kernel/linux/linux-4.19/arch/unicore32/ |
| D | .gitignore | 16 # Generated files in boot/compressed
18 boot/compressed/piggy.S
19 boot/compressed/piggy.gzip
20 boot/compressed/vmlinux
21 boot/compressed/vmlinux.lds
|
| /kernel/linux/linux-4.19/drivers/staging/erofs/ |
| D | Kconfig | 96 Indicates VLE compressed pages hard limit of a
97 compressed cluster.
99 For example, if files of a image are compressed
121 Read compressed data into page cache and do in-place
127 For each request, it caches the last compressed page
129 It still decompresses in place for the rest compressed pages.
134 For each request, it caches the both end compressed pages
136 It still decompresses in place for the rest compressed pages.
|
| /kernel/linux/linux-4.19/Documentation/networking/ |
| D | ipsec.txt | 5 1. IPcomp: Small IP packet won't get compressed at sender, and failed on
11 If the total size of a compressed payload and the IPComp header, as
13 payload, the IP datagram MUST be sent in the original non-compressed
14 form. To clarify: If an IP datagram is sent non-compressed, no
28 when sending non-compressed packet to the peer (whether or not packet len
29 is smaller than the threshold or the compressed len is larger than original
|
| /kernel/linux/linux-5.10/Documentation/userspace-api/media/v4l/ |
| D | pixfmt-reserved.rst | 41 - Compressed format of the ET61X251 driver.
85 - Compressed GBRG Bayer format used by the gspca driver.
90 - Compressed BGGR Bayer format used by the gspca driver.
95 - Compressed BGGR Bayer format used by the gspca driver.
100 - JPEG compressed RGGB Bayer format used by the gspca driver.
120 - Compressed RGB format used by the gspca se401 driver
125 - Compressed RGGB bayer format used by the gspca driver.
130 - Compressed format used by the Zoran driver
135 - Compressed format of the PWC driver.
140 - Compressed format of the PWC driver.
[all …]
|
| D | fourcc.rst | 19 - b: raw bayer, DPCM compressed
20 - a: A-law compressed
21 - u: u-law compressed
32 4th character: compressed bits-per-pixel 0--9, A--
|
| /kernel/linux/linux-4.19/Documentation/media/uapi/v4l/ |
| D | pixfmt-reserved.rst | 41 - Compressed format of the ET61X251 driver.
86 - Compressed GBRG Bayer format used by the gspca driver.
91 - Compressed BGGR Bayer format used by the gspca driver.
96 - Compressed BGGR Bayer format used by the gspca driver.
101 - JPEG compressed RGGB Bayer format used by the gspca driver.
121 - Compressed RGB format used by the gspca se401 driver
126 - Compressed RGGB bayer format used by the gspca driver.
131 - Compressed format used by the Zoran driver
136 - Compressed format of the PWC driver.
141 - Compressed format of the PWC driver.
[all …]
|
| /kernel/linux/linux-4.19/fs/squashfs/ |
| D | Kconfig | 5 Saying Y here includes support for SquashFS 4.0 (a Compressed
6 Read-Only File System). Squashfs is a highly compressed read-only
111 bool "Include support for ZLIB compressed file systems"
124 bool "Include support for LZ4 compressed file systems"
129 compressed with LZ4 compression. LZ4 compression is mainly
139 bool "Include support for LZO compressed file systems"
144 compressed with LZO compression. LZO compression is mainly
154 bool "Include support for XZ compressed file systems"
159 compressed with XZ compression. XZ gives better compression than
169 bool "Include support for ZSTD compressed file systems"
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|
| /kernel/linux/linux-5.10/fs/squashfs/ |
| D | Kconfig | 6 Saying Y here includes support for SquashFS 4.0 (a Compressed
7 Read-Only File System). Squashfs is a highly compressed read-only
112 bool "Include support for ZLIB compressed file systems"
125 bool "Include support for LZ4 compressed file systems"
130 compressed with LZ4 compression. LZ4 compression is mainly
140 bool "Include support for LZO compressed file systems"
145 compressed with LZO compression. LZO compression is mainly
155 bool "Include support for XZ compressed file systems"
160 compressed with XZ compression. XZ gives better compression than
170 bool "Include support for ZSTD compressed file systems"
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|
| /kernel/linux/linux-4.19/Documentation/sound/designs/ |
| D | compress-offload.rst | 15 extend the existing API to compressed data streams.
19 codecs. Processing compressed data on such DSPs results in a dramatic
26 ALSA PCM interface, a new 'Compressed Data' API is introduced to
39 - separation between byte counts and time. Compressed formats may have
43 compressed data. Dedicated mechanisms are required to allow for
49 contrast, compressed data comes in a variety of formats. Audio DSPs
68 streaming compressed data to a DSP, with the assumption that the
72 have existing enums/structures for each compressed format. This new
94 The Compressed Data API does not make any assumptions on how the data
163 difficult to reach with all types of compressed data, but works fine with most
[all …]
|
| /kernel/linux/linux-5.10/Documentation/networking/ |
| D | ipsec.rst | 12 Small IP packet won't get compressed at sender, and failed on
19 If the total size of a compressed payload and the IPComp header, as
21 payload, the IP datagram MUST be sent in the original non-compressed
22 form. To clarify: If an IP datagram is sent non-compressed, no
36 when sending non-compressed packet to the peer (whether or not packet len
37 is smaller than the threshold or the compressed len is larger than original
|
| /kernel/linux/linux-5.10/usr/ |
| D | Kconfig | 56 bool "Support initial ramdisk/ramfs compressed using gzip"
64 bool "Support initial ramdisk/ramfs compressed using bzip2"
72 bool "Support initial ramdisk/ramfs compressed using LZMA"
80 bool "Support initial ramdisk/ramfs compressed using XZ"
88 bool "Support initial ramdisk/ramfs compressed using LZO"
96 bool "Support initial ramdisk/ramfs compressed using LZ4"
104 bool "Support initial ramdisk/ramfs compressed using ZSTD"
117 initramfs will be compressed. Several compression algorithms are
224 compressed at a later stage anyways along with the rest of the kernel,
|
| /kernel/linux/linux-5.10/Documentation/sound/designs/ |
| D | compress-offload.rst | 15 extend the existing API to compressed data streams.
19 codecs. Processing compressed data on such DSPs results in a dramatic
26 ALSA PCM interface, a new 'Compressed Data' API is introduced to
39 - separation between byte counts and time. Compressed formats may have
43 compressed data. Dedicated mechanisms are required to allow for
49 contrast, compressed data comes in a variety of formats. Audio DSPs
68 streaming compressed data to a DSP, with the assumption that the
72 have existing enums/structures for each compressed format. This new
94 The Compressed Data API does not make any assumptions on how the data
157 The compressed audio stream state machine is described below ::
[all …]
|
| /kernel/linux/linux-5.10/arch/parisc/boot/ |
| D | Makefile | 8 subdir- := compressed
13 $(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
16 $(obj)/compressed/vmlinux: FORCE
17 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
|
| /kernel/linux/linux-5.10/arch/ia64/ |
| D | Makefile | 57 PHONY += compressed check
59 all: compressed unwcheck
61 compressed: vmlinux.gz target
85 echo '* compressed - Build compressed kernel image'
86 echo ' install - Install compressed kernel image'
|
| /kernel/linux/linux-4.19/fs/btrfs/ |
| D | compression.h | 13 * reasonable, so we limit the total size in ram of a compressed extent to
18 * reasonably small, so we limit the size of a compressed extent to 128k.
21 /* Maximum length of compressed data stored on disk */
29 /* number of bios pending for this compressed extent */
32 /* the pages with the compressed data on them */
50 /* number of compressed pages in the array */
|
| /kernel/linux/linux-4.19/arch/parisc/boot/ |
| D | Makefile | 13 subdir- := compressed
18 $(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
21 $(obj)/compressed/vmlinux: FORCE
22 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
|
| /kernel/linux/linux-4.19/fs/jffs2/ |
| D | compr.c | 63 * @cpage_out: Pointer to returned pointer to buffer for compressed data
65 * On exit, expected to hold the amount of data actually compressed.
66 * @cdatalen: On entry, holds the amount of space available for compressed
67 * data. On exit, expected to hold the actual size of the compressed
71 * could not be compressed; probably because we couldn't find the requested
132 * @cpage_out: Pointer to returned pointer to buffer for compressed data
134 * On exit, expected to hold the amount of data actually compressed.
135 * @cdatalen: On entry, holds the amount of space available for compressed
136 * data. On exit, expected to hold the actual size of the compressed
140 * Zero is used to show that the data could not be compressed - the
[all …]
|
| /kernel/linux/linux-5.10/fs/jffs2/ |
| D | compr.c | 63 * @cpage_out: Pointer to returned pointer to buffer for compressed data
65 * On exit, expected to hold the amount of data actually compressed.
66 * @cdatalen: On entry, holds the amount of space available for compressed
67 * data. On exit, expected to hold the actual size of the compressed
71 * could not be compressed; probably because we couldn't find the requested
132 * @cpage_out: Pointer to returned pointer to buffer for compressed data
134 * On exit, expected to hold the amount of data actually compressed.
135 * @cdatalen: On entry, holds the amount of space available for compressed
136 * data. On exit, expected to hold the actual size of the compressed
140 * Zero is used to show that the data could not be compressed - the
[all …]
|
| /kernel/linux/linux-4.19/Documentation/media/v4l-drivers/ |
| D | fourcc.rst | 17 - b: raw bayer, DPCM compressed
18 - a: A-law compressed
19 - u: u-law compressed
30 4th character: compressed bits-per-pixel 0--9, A--
|
| /kernel/linux/linux-4.19/usr/ |
| D | Kconfig | 56 bool "Support initial ramdisk/ramfs compressed using gzip"
65 bool "Support initial ramdisk/ramfs compressed using bzip2"
74 bool "Support initial ramdisk/ramfs compressed using LZMA"
83 bool "Support initial ramdisk/ramfs compressed using XZ"
92 bool "Support initial ramdisk/ramfs compressed using LZO"
101 bool "Support initial ramdisk/ramfs compressed using LZ4"
115 initramfs will be compressed. Several compression algorithms are
211 compressed at a later stage anyways along with the rest of the kernel,
|
| /kernel/linux/linux-5.10/include/linux/ |
| D | lz4.h | 178 * @dest: output buffer address of the compressed data
203 * @dest: output buffer address of the compressed data
228 * @dest: output buffer address of the compressed data
254 * @source: source address of the compressed data
261 * compressed data.
275 * @source: source address of the compressed data
278 * @compressedSize: is the precise full size of the compressed block
298 * @source: source address of the compressed data
301 * @compressedSize: is the precise full size of the compressed block.
306 * This function decompresses a compressed block of size 'compressedSize'
[all …]
|