freebsd-dev/sys/cddl/contrib/opensolaris
Alexander Motin 1dbc0fc352 MFV r328253: 8835 Speculative prefetch in ZFS not working for misaligned reads
illumos/illumos-gate@5cb8d943bc

https://www.illumos.org/issues/8835:
Sequential reads not aligned to block size are not detected by ZFS
prefetcher as sequential, killing prefetch and severely hurting
performance.  It is caused by dmu_zfetch() in case of misaligned
sequential accesses being called with overlap of one block.

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Allan Jude <allanjude@freebsd.org>
Approved by: Gordon Ross <gwr@nexenta.com>
Author: Alexander Motin <mav@FreeBSD.org>
2018-01-22 05:57:14 +00:00
..
common MFV r325605: 8713 Buffer overflow in dsl_dataset_name() 2017-11-09 18:12:21 +00:00
uts MFV r328253: 8835 Speculative prefetch in ZFS not working for misaligned reads 2018-01-22 05:57:14 +00:00
OPENSOLARIS.LICENSE