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
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opensolaris	MFV r328253: 8835 Speculative prefetch in ZFS not working for misaligned reads	2018-01-22 05:57:14 +00:00