freebsd-dev/sys
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
..
amd64 Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
arm Rename rpi_pwm to bcm283x_pwm, and build it on armv[67] and arm64. 2018-01-21 21:27:41 +00:00
arm64 Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
bsm sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
cam Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
cddl MFV r328253: 8835 Speculative prefetch in ZFS not working for misaligned reads 2018-01-22 05:57:14 +00:00
compat Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
conf Convert extres/phy to kobj model. 2018-01-20 17:02:17 +00:00
contrib libnv: Use mallocarray(9) for the nv_calloc. 2018-01-19 14:50:53 +00:00
crypto Add ccp(4): experimental driver for AMD Crypto Co-Processor 2018-01-18 22:01:30 +00:00
ddb Implement 'domainset', a cpuset based NUMA policy mechanism. This allows 2018-01-12 22:48:23 +00:00
dev Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
dts Add a rudimentary PWM driver for the RaspberryPi. 2018-01-14 20:36:21 +00:00
fs Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
gdb sys/gdb: further adoption of SPDX licensing ID tags. 2017-11-27 15:16:59 +00:00
geom Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
gnu Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
i386 Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
isa On further testing on actual machines with this hardware, we should 2017-12-30 08:16:31 +00:00
kern Forgot to sort here in r328238. 2018-01-22 02:26:10 +00:00
kgssapi sys/kgssapi: general adoption of SPDX licensing ID tags. 2017-11-27 15:49:00 +00:00
libkern SPDX: fix wrong license ID tag in libkern. 2017-12-28 01:20:30 +00:00
mips Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
modules Rename rpi_pwm to bcm283x_pwm, and build it on armv[67] and arm64. 2018-01-21 21:27:41 +00:00
net Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
net80211 net80211: sanitize input for ieee80211_output() 2017-12-30 00:40:34 +00:00
netgraph Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
netinet Fix a bug related to fast retransmissions. 2018-01-16 21:58:38 +00:00
netinet6 Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
netipsec Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
netpfil Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
netsmb Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
nfs Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
nfsclient sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nfsserver sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nlm Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
ofed sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
opencrypto Split crp_buf into a union. 2018-01-16 19:41:18 +00:00
powerpc Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
riscv Remove SFBUF_OPTIONAL_DIRECT_MAP and such hacks, replacing them across the 2018-01-19 17:46:31 +00:00
rpc Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
security Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
sparc64 Remove SFBUF_OPTIONAL_DIRECT_MAP and such hacks, replacing them across the 2018-01-19 17:46:31 +00:00
sys Use the __alloc_size2 attribute where relevant. 2018-01-22 01:50:10 +00:00
teken sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
tests
tools embed_mfs: correctly test grep return value 2018-01-03 19:22:10 +00:00
ufs ufs: use mallocarray(9). 2018-01-17 18:18:33 +00:00
vm Assign map->header values to avoid boundary checks. 2018-01-20 12:19:02 +00:00
x86 Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
xdr sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
xen sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
Makefile Move sys/boot to stand. Fix all references to new location 2017-11-14 23:02:19 +00:00