shodanshok 887a3c533b Increase L2ARC write rate and headroom ... Current L2ARC write rate and headroom parameters are very conservative: l2arc_write_max=8M and l2arc_headroom=2 (ie: a full L2ARC writes at 8 MB/s, scanning 16/32 MB of ARC tail each time; a warming L2ARC runs at 2x these rates). These values were selected 15+ years ago based on then-current SSDs size, performance and endurance. Today we have multi-TB, fast and cheap SSDs which can sustain much higher read/write rates. For this reason, this patch increases l2arc_write_max to 32M and l2arc_headroom to 8 (4x increase for both). Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Gionatan Danti <g.danti@assyoma.it> Closes #15457		2023-11-08 16:30:47 -08:00
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avl	Suppress Clang Static Analyzer false positive in the AVL tree code.	2023-03-08 13:51:21 -08:00
icp	Add BTI landing pads to the AArch64 SHA2 assembly	2023-10-03 15:12:36 -07:00
lua	Add loongarch64 support	2023-04-25 16:05:45 -07:00
nvpair	nvpair: Constify string functions	2023-03-14 15:25:50 -07:00
os	Linux: reject read/write mapping to immutable file only on VM_SHARED	2023-11-08 12:19:38 -08:00
unicode	Illumos #15286: do_composition() needs sign awareness	2023-01-05 11:16:21 -08:00
zcommon	RAID-Z expansion feature	2023-11-08 10:19:41 -08:00
zfs	Increase L2ARC write rate and headroom	2023-11-08 16:30:47 -08:00
zstd	Resolve WS-2021-0184 vulnerability in zstd	2023-02-02 15:12:51 -08:00
.gitignore	FreeBSD: Ignore symlink to i386 includes	2022-08-02 16:34:23 -07:00
Kbuild.in	RAID-Z expansion feature	2023-11-08 10:19:41 -08:00
Makefile.bsd	Finally drop long disabled vdev cache.	2023-06-09 12:40:55 -07:00
Makefile.in	check-zstd-symbols: also ignore __pfx_ symbols	2023-09-18 09:08:41 -07:00