mirror_zfs/module
Alexander Motin 370570890f
Remove parent ZIO from dbuf_prefetch()
I am not sure why it was added there 10 years ago, but it seems not
needed now.  According to my tests removing it improves sequential
read performance with recordsize=4K by 5-10% by reducing the CPU
overhead in prefetcher.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Akash B <akash-b@hpe.com>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #18214
2026-02-18 18:12:13 -08:00
..
avl Prefer VERIFY0P(n) over VERIFY(n == NULL) 2025-08-07 11:41:37 -07:00
icp ICP: AES-GCM VAES-AVX2: fix typos and document source files 2026-02-17 16:51:32 -08:00
lua SPDX: license tags: MIT 2025-03-13 17:56:54 -07:00
nvpair nvpair: chase FreeBSD xdrproc_t definition 2026-01-28 21:41:33 -05:00
os zfs_vnops_os.c: Move a vput() to after zfs_setattr_dir() 2026-02-10 09:29:37 -05:00
zcommon Add snapshots_changed_nsecs dataset property 2026-01-06 09:36:20 -08:00
zfs Remove parent ZIO from dbuf_prefetch() 2026-02-18 18:12:13 -08:00
zstd Zstd: Document update policy 2026-01-20 13:41:24 -08:00
.gitignore FreeBSD: Ignore symlink to i386 includes 2022-08-02 16:34:23 -07:00
Kbuild.in Zstd: Integrate v1.5.7 into the ZFS build system 2026-01-20 13:41:06 -08:00
Makefile.bsd Zstd: Integrate v1.5.7 into the ZFS build system 2026-01-20 13:41:06 -08:00
Makefile.in Fix --enable-invariants on FreeBSD 2026-01-14 14:54:12 -08:00