Brian Behlendorf fa28e26e42 Increase default zfs_scan_vdev_limit to 16MB ... For HDD based pools the default zfs_scan_vdev_limit of 4M per-vdev can significantly limit the maximum scrub performance. Increasing the default to 16M can double the scrub speed from 80 MB/s per disk to 160 MB/s per disk. This does increase the memory footprint during scrub/resilver but given the performance win this is a reasonable trade off. Memory usage is capped at 1/4 of arc_c_max. Note that number of outstanding I/Os has not changed and is still limited by zfs_vdev_scrub_max_active. Reviewed-by: Akash B <akash-b@hpe.com> Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #14428		2023-04-24 12:55:07 -07:00
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avl	AVL: Remove obsolete branching optimizations	2022-07-26 10:10:37 -07:00
icp	Fix possible NULL pointer dereference in sha2_mac_init()	2022-12-01 12:39:42 -08:00
lua	Lua: Fix bad bitshift in lua_strx2number()	2022-12-01 12:39:44 -08:00
nvpair	Update checkstyle workflow env to ubuntu-20.04	2021-12-08 13:27:56 -08:00
os	Linux: zfs_fillpage() should handle partial pages from end of file	2023-04-21 13:12:35 -07:00
spl	Cleanup linux module kbuild files	2020-06-10 09:24:15 -07:00
unicode	Illumos #15286: do_composition() needs sign awareness	2023-01-19 12:50:42 -08:00
zcommon	dsl_prop_known_index(): check for invalid prop	2022-11-08 10:16:21 -08:00
zfs	Increase default zfs_scan_vdev_limit to 16MB	2023-04-24 12:55:07 -07:00
zstd	module: zstd: check we don't leak symbols; regenerate symbol map	2022-05-16 15:48:21 -07:00
.gitignore	FreeBSD: Ignore symlink to i386 includes	2022-09-28 10:35:13 -07:00
Kbuild.in	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
Makefile.bsd	FreeBSD: Silence clang unused-but-set-variable	2022-06-15 11:27:28 -07:00
Makefile.in	Add support for $KERNEL_{CC,LD,LLVM} variables	2022-02-16 17:58:55 -08:00