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https://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git
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55bf9b749d
People are interested in measuring the hash performance on non-x86_64
architectures. Add option to do time-based measurements (in nanoseconds)
in case there's no support for clock-based measurements.
$ ./hash-speedtest --cycles
Block size: 4096
Iterations: 100000
Implementation: builtin
Units: cycles
NULL-NOP: cycles: 43035633, cycles/i 430
NULL-MEMCPY: cycles: 72478624, cycles/i 724
CRC32C: cycles: 181712982, cycles/i 1817
XXHASH: cycles: 136251305, cycles/i 1362
SHA256: cycles: 10758567410, cycles/i 107585
BLAKE2b: cycles: 2249704806, cycles/i 22497
$ ./hash-speedtest --time
Block size: 4096
Iterations: 100000
Implementation: builtin
Units: nsecs
NULL-NOP: nsecs: 12459033, nsecs/i 124
NULL-MEMCPY: nsecs: 20687845, nsecs/i 206
CRC32C: nsecs: 52648264, nsecs/i 526
XXHASH: nsecs: 39591766, nsecs/i 395
SHA256: nsecs: 3079668837, nsecs/i 30796
BLAKE2b: nsecs: 644766582, nsecs/i 6447
Signed-off-by: David Sterba <dsterba@suse.com>
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|---|---|---|
| .. | ||
| blake2-impl.h | ||
| blake2.h | ||
| blake2b-ref.c | ||
| crc32c.c | ||
| crc32c.h | ||
| hash-speedtest.c | ||
| hash-vectest.c | ||
| hash.c | ||
| hash.h | ||
| sha224-256.c | ||
| sha-private.h | ||
| sha.h | ||
| xxhash.c | ||
| xxhash.h | ||