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07ca433973
During module load time all of the available fetcher4 and raidz
implementations are benchmarked for a fixed amount of time to
determine the fastest available. Manual testing has shown that this
time can be significantly reduced with negligible effect on the final
results.
This commit changes the benchmark time to 1ms which can reduce the
module load time by over a second on x86_64. On an x86_64 system
with sse3, ssse3, and avx2 instructions the benchmark times are:
Fletcher4 603ms -> 15ms
RAIDZ 1,322ms -> 64ms
Reviewed-by: Matthew Macy <mmacy@freebsd.org>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11282
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| .. | ||
| cityhash.c | ||
| Makefile.in | ||
| zfeature_common.c | ||
| zfs_comutil.c | ||
| zfs_deleg.c | ||
| zfs_fletcher_aarch64_neon.c | ||
| zfs_fletcher_avx512.c | ||
| zfs_fletcher_intel.c | ||
| zfs_fletcher_sse.c | ||
| zfs_fletcher_superscalar4.c | ||
| zfs_fletcher_superscalar.c | ||
| zfs_fletcher.c | ||
| zfs_namecheck.c | ||
| zfs_prop.c | ||
| zfs_uio.c | ||
| zpool_prop.c | ||
| zprop_common.c | ||