btrfs-progs

Commit Graph

Author	SHA1	Message	Date
Yaroslav Halchenko	16a7cbca91	btrfs-progs: run codespell throughout fixing typos automagically Spell checking can now run in automated mode. === Do not change lines below === { "chain": [], "cmd": "codespell -w", "exit": 0, "extra_inputs": [], "inputs": [], "outputs": [], "pwd": "." } ^^^ Do not change lines above ^^^ Author: Yaroslav Halchenko <debian@onerussian.com> Signed-off-by: David Sterba <dsterba@suse.com>	2024-07-30 19:56:08 +02:00
Ariadne Conill	b390c276c2	btrfs-progs: crypto: fix readonly relocation of the jumptable Without this, the btrfs programs fail to link when build with -Wl,-z,relro, due to the jumptable containing relocations. Pull-request: #675 Signed-off-by: Ariadne Conill <ariadne@dereferenced.org> Signed-off-by: David Sterba <dsterba@suse.com>	2023-09-12 22:08:02 +02:00
David Sterba	992be8b50a	btrfs-progs: crypto: add PCL based implementation for crc32c Copy faster implementation of crc32c from linux kernel as of 6.5-rc7 (x86_64, arch/x86/crypto/crc32c-pcl-intel-asm_64.S). This needs assembler build support, so detect target architecture so cross-compilation still works. Add a special CPU flag so the old and new implementations can be benchmarked and verified separately. Sample benchmark: CPU flags: 0x1ff CPU features: SSE2 SSSE3 SSE41 SSE42 SHA AVX AVX2 CRC32C_PCL Block size: 4096 Iterations: 1000000 Implementation: builtin Units: CPU cycles NULL-NOP: cycles: 77177218, cycles/i 77 NULL-MEMCPY: cycles: 226313072, cycles/i 226, 62133.395 MiB/s CRC32C-ref: cycles: 24418596066, cycles/i 24418, 575.859 MiB/s CRC32C-NI: cycles: 1188335920, cycles/i 1188, 11833.073 MiB/s CRC32C-PCL: cycles: 463193456, cycles/i 463, 30358.037 MiB/s XXHASH: cycles: 851606646, cycles/i 851, 16511.916 MiB/s SHA256-ref: cycles: 74476234956, cycles/i 74476, 188.808 MiB/s SHA256-NI: cycles: 34198637428, cycles/i 34198, 411.177 MiB/s BLAKE2-ref: cycles: 14761411664, cycles/i 14761, 952.597 MiB/s BLAKE2-SSE2: cycles: 18101896796, cycles/i 18101, 776.807 MiB/s BLAKE2-SSE41: cycles: 12599091062, cycles/i 12599, 1116.087 MiB/s BLAKE2-AVX2: cycles: 9668247506, cycles/i 9668, 1454.418 MiB/s The new implementation is about 2.5x faster. Note: there new version does not work on musl because of linkage problems (relocations in .rodata), so it's still using the old implementation. Signed-off-by: David Sterba <dsterba@suse.com>	2023-08-28 17:24:24 +02:00

Author

SHA1

Message

Date

Yaroslav Halchenko

16a7cbca91

btrfs-progs: run codespell throughout fixing typos automagically

Spell checking can now run in automated mode.

=== Do not change lines below ===
{
 "chain": [],
 "cmd": "codespell -w",
 "exit": 0,
 "extra_inputs": [],
 "inputs": [],
 "outputs": [],
 "pwd": "."
}
^^^ Do not change lines above ^^^

Author: Yaroslav Halchenko <debian@onerussian.com>
Signed-off-by: David Sterba <dsterba@suse.com>

2024-07-30 19:56:08 +02:00

Ariadne Conill

b390c276c2

btrfs-progs: crypto: fix readonly relocation of the jumptable

Without this, the btrfs programs fail to link when build with -Wl,-z,relro,
due to the jumptable containing relocations.

Pull-request: #675
Signed-off-by: Ariadne Conill <ariadne@dereferenced.org>
Signed-off-by: David Sterba <dsterba@suse.com>

2023-09-12 22:08:02 +02:00

David Sterba

992be8b50a

btrfs-progs: crypto: add PCL based implementation for crc32c

Copy faster implementation of crc32c from linux kernel as of 6.5-rc7
(x86_64, arch/x86/crypto/crc32c-pcl-intel-asm_64.S). This needs
assembler build support, so detect target architecture so
cross-compilation still works.

Add a special CPU flag so the old and new implementations can be
benchmarked and verified separately.

Sample benchmark:

CPU flags: 0x1ff
CPU features: SSE2 SSSE3 SSE41 SSE42 SHA AVX AVX2 CRC32C_PCL
Block size:     4096
Iterations:     1000000
Implementation: builtin
Units:          CPU cycles

      NULL-NOP: cycles:     77177218, cycles/i       77
   NULL-MEMCPY: cycles:    226313072, cycles/i      226,    62133.395 MiB/s
    CRC32C-ref: cycles:  24418596066, cycles/i    24418,      575.859 MiB/s
     CRC32C-NI: cycles:   1188335920, cycles/i     1188,    11833.073 MiB/s
    CRC32C-PCL: cycles:    463193456, cycles/i      463,    30358.037 MiB/s
        XXHASH: cycles:    851606646, cycles/i      851,    16511.916 MiB/s
    SHA256-ref: cycles:  74476234956, cycles/i    74476,      188.808 MiB/s
     SHA256-NI: cycles:  34198637428, cycles/i    34198,      411.177 MiB/s
    BLAKE2-ref: cycles:  14761411664, cycles/i    14761,      952.597 MiB/s
   BLAKE2-SSE2: cycles:  18101896796, cycles/i    18101,      776.807 MiB/s
  BLAKE2-SSE41: cycles:  12599091062, cycles/i    12599,     1116.087 MiB/s
   BLAKE2-AVX2: cycles:   9668247506, cycles/i     9668,     1454.418 MiB/s

The new implementation is about 2.5x faster.

Note: there new version does not work on musl because of linkage
problems (relocations in .rodata), so it's still using the old
implementation.

Signed-off-by: David Sterba <dsterba@suse.com>

2023-08-28 17:24:24 +02:00

3 Commits